Archived project

ANADIA 2.0 - Climate Change Adaptation, Disaster Reduction and Agricultural Development for Food Security - Phase 2

Goal: Contributing to the development of sustainable agriculture, adapted to climate change and less vulnerable to extreme events to contribute to Niger's food security.
Extend the approach tested with the previous ANADIA project to the Dosso (Niger) region, consolidating the approach and enhancing collaboration between different administrative levels (Min. of Hydraulics, Min. of Agriculture, Early Warning System, National Council for the Environment and Sustainable Development, Municipalities).

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Vieri Tarchiani
added a research item
In recent years, West Africa has experienced an increasing number of flood disasters, urging governments and decision makers to take adaptation measures, particularly in cities where the population is growing very fast. The present study focuses on the hydrological hazard of the city of Niamey (capital of Niger) along the Niger River. The regime of the Niger river at Niamey is marked by two successive floods: a first flood (July-August) resulting from the contributions of local Sahelian catchment (Sahelian red flood) and a second flood (February-March) resulting from the contribution of upstream catchments (Guinean black flood). Past studies have shown how the 1st flood, which was almost non-existent in the 1950s and 1960s, has predominated since the 1980s causing the most damaging floods due to a combined effect of climate and land use/cover changes. However, there is no in-depth study on statistical flood modelling, which is an essential step in any flood management strategy. The aim of the study is to evaluate how Niger discharge regime has changed since the 1950s with a specific focus on floods with the aim of deciphering the impact of Guinean and local flows in a statistical model. To do so, an original method is first proposed to isolate local flows from Guinean flows in the Niamey discharge data series. This separation allows us to distinguish three typologies of maximum annual floods according to whether they are generated by Guinean flows only, local flows only or a mix of the two. This observation leads us to propose different models of extreme discharge in Niamey based on the non-stationary extreme value theory able to consider both the typology of the floods and their temporal evolution.
Vieri Tarchiani
added a research item
Au cours des 10 dernières années, l'Organisation Météorologique Mondiale (OMM) a activement soutenu les pays de l'Afrique de l'Ouest, dont le Niger, dans la transition vers la CSA grâce à l'opérationnalisation des SMC. L'approche s'appuie sur le concept des Systèmes d'Innovation Agricole (SIA), un réseau intégrant la recherche agricole, la vulgarisation, les agences d'éducation et les agriculteurs ainsi que d'autres acteurs privés et publics tels que le SMN, les médias et les Organisations Non Gouvernementales qui promeuvent l'innovation dans l'agriculture (Tarchiani et al., 2017). Le SIA au Niger est diversifié (de nombreux acteurs travaillant sur le terrain) mais ils ne sont pas bien structurés (de nombreuses initiatives travaillant séparément sur une base de projet). Les agriculteurs connaissent très bien les informations climatiques et météorologiques, qui sont déjà intégrées dans le SIA et les connaissances locales. Bien que l'utilisation des SMC à l'échelle nationale soit plus faible que dans d'autres pays, presque tous les agriculteurs les connaissent et / ou utilisent directement ou indirectement. Dans le cas du Niger, les longues distances, l'étendue de la zone de culture, les ressources limitées pour le service de vulgarisation et la mauvaise collaboration affectent négativement l'adoption de certains types de conseils. En effet, le recours aux conseils agrométéorologiques n'est souvent pas un problème de sensibilisation, mais dépend plutôt de l’environnement social et cultural. De nombreux défis restent donc à relever afin de rendre les SMC pertinentes pour les petits exploitants et de renforcer la confiance dans les conseils. La proximité des agriculteurs avec la SMN et le service de vulgarisation agricole est certainement le principal facteur influençant leur adoption, dans le sens de la confiance, de la continuité et du retour d'information. Enfin les SMC doivent être conçus avec l’esprit d'assurer la pérennité du service, à travers l’utilisation d’outils simples qui puissent être gérés même avec faibles ressources économiques et techniques et également ouverts et flexibles pour être personnalisés et étendus à d'autres régions. Relevant le défi des initiatives de l'OMM, le projet ANADIA s'est engagé dans l'appui à la Direction de la Météorologie Nationale du Niger (DMN) pour la production et la diffusion de services agrométéorologiques pour les agriculteurs. L'hypothèse est que les SMC peuvent effectivement améliorer la productivité agricole et augmenter les revenus des agriculteurs, jouant un rôle essentiel dans la réalisation des objectifs de développement durable (Campbell et al., 2014), à condition que des mécanismes appropriés de diffusion et d'utilisation soient en place. Par conséquent, les défis que le projet a décidé de relever ont été identifiés dans l'amélioration des services existants, dans l'augmentation de leur diffusion et dans le soutien à leur adoption. Ce chapitre vise à délimiter l'approche méthodologique adoptée dans la région de Dosso et à discuter les succès et les échecs rencontrés au cours des 2 dernières années.
Vieri Tarchiani
added a research item
Emerging hydrological services provide stakeholders and political authorities with useful and reliable information to support the decision-making process and develop flood risk management strategies. Most of these services adopt the paradigm of open data and standard web services, paving the way to increase distributed hydrometeorological services’ interoperability. Moreover, sharing of data, models, information, and the use of open-source software, greatly contributes to expanding the knowledge on flood risk and to increasing flood preparedness. Nevertheless, services’ interoperability and open data are not common in local systems implemented in developing countries. This paper presents the web platform and related services developed for the Local Flood Early Warning System of the Sirba River in Niger (SLAPIS) to tailor hydroclimatic information to the user’s needs, both in content and format. Building upon open-source software components and interoperable web services, we created a software framework covering data capture and storage, data flow management procedures from several data providers, real-time web publication, and service-based information dissemination. The geospatial infrastructure and web services respond to the actual and local decision-making context to improve the usability and usefulness of information derived from hydrometeorological forecasts, hydraulic models, and real-time observations. This paper presents also the results of the three years of operational campaigns for flood early warning on the Sirba River in Niger. Semiautomatic flood warnings tailored and provided to end users bridge the gap between available technology and local users’ needs for adaptation, mitigation, and flood risk management, and make progress toward the sustainable development goals.
Maurizio Tiepolo
added a research item
Flood risk reduction at the local scale requires knowledge of the settlements which are most exposed to floods, and those where the existing measures are insufficient to handle the threats. The knowledge on spatial dynamics of the flooded human settlements is limited, especially that of the smaller ones, such as the settlements in the sub-Saharan Africa. The dataset on 122 flooded settlements in the Dosso Region (Niger) offers information on: the built-up area and the number of buildings with corrugated iron roofs in 2004, 2012, and 2019 (average dates), the type of human settlements (city, rural town, village, or hamlet), the flood dates and the number of buildings collapsed between 2011 and 2019. The data on the built-up area and the number of buildings with corrugated iron roofs were extracted by visual photointerpretation from very high-resolution images accessible through Google Earth Pro. The information on the settlement category was obtained from the Human Settlements National Directory (French acronym, ReNaLoc) published by the National Institute of Statistics of Niger. The dates of floods and the data on the number of collapsed buildings were obtained from the open access national database on flooding, known by the French acronym, BDINA. These data can be reused to build a geodatabase for flood risk reduction and to draft the municipal and regional development plans. Their potential reuse allows for the identification of settlements undergoing the most rapid physical expansion, built-up area in a flood-prone zone, and settlements that require protection and flood risk reduction policies. Additionally, the dataset can also be used to verify the accuracy of the built-up area obtained from the satellite images with coarse resolution and for comparisons with other regions in Niger and in sub-Saharan Africa.
Giovanni Massazza
added 2 research items
Dosso est l’une des régions les plus humides du Niger, favorable à l’agriculture pluviale, mais elle présente aussi des risques climatiques pour ses habitants (Tiepolo et al. 2018). Au cours des dernières années la région de Dosso a connu beaucoup de dégâts suite aux inondations (Fiorillo et al. 2018). D’où l’importance de connaître les mécanismes qui peuvent générer les évènements d’inondation et les zones inondables au niveau de chaque commune pour prévenir les dégâts et permettre aux populations exposées de se préparer à l’éventualité des inondations futures. Pour identifier les zones inondables, il est nécessaire de faire l’état des connaissances sur l’hydrologie de la région de Dosso (les dallos, les mares et le fleuve), du système d’information en place et des organismes responsables. L’importance du système d’information pour identifier les zones inondables et pour apprécier leurs changements au fil du temps. L’objectif de ce chapitre est de faire l’état des connaissances sur le réseau hydrographique de la région, décrire le système d’information (suivi) en place et identifier ses limites dans la perspective d’identifier les zones inondables à l’échelle communale.
Maurizio Tiepolo
added a research item
Le changement climatique en Afrique tropicale expose de nombreux établissements ruraux à des précipitations intenses. La dégradation des bassins versants transforme ces précipitations en inondations catastrophiques. Mais les impacts des précipitations intenses dépendent également de l'expansion du bati dans les zones inondables, sur laquelle les connaissances sont encore rares. L'objectif de ce chapitre est de réaliser une évaluation détaillée du risque, qui identifie les biens exposés aux inondations pluviales, estime l'impact et l'efficacité des mesures de réduction du risque. L'évaluation est réalisée dans quatre petites villes du Niger rural en plein essor, qui ont été inondées à plusieurs reprises au cours des dernières années. Les zones inondables suite à des pluies avec période de retour de 3 et 20 ans sont identifiées à l'aide d'un modèle hydrologique bidimensionnel selon que le bassin versant reste dans son état actuel ou est traité avec des mesures de réduction du risque. Les biens exposés sont identifiés par photointerprétation visuelle d'images à très haute résolution et leur valeur de remplacement est estimée. Les mesures de réduction des risques sont identifiées par des discussions avec les communautés. Le risque résiduel et le rapport bénéfice/coût du traitement du risque sont estimés. Le résultat est qu'au cours des 10 dernières années, l'expansion des 4 petites villes est plus rapide dans la zone inondable. Il reste peu de zones sûres pour permettre une expansion future. La cartographie des zones et des éléments exposés aux inondations est donc essentielle pour réduire l'exposition future aux inondations. La rétention d'eau, les toits en tôle ondulée, les barrières anti-inondation, les latrines surélevées et les puits sont des mesures efficaces pour réduire le risque, surtout en cas de précipitations intenses et fréquentes.
Vieri Tarchiani
added an update
Ce livre a été produit dans le cadre du projet AID 10848 - ANADIA 2.0
Adaptation au changement climatique, prévention des catastrophes et
développement agricole pour la sécurité alimentaire, cofinancé par l’Agence
Italienne pour la Coopération au Développement (AICS), l’Institut de
Bioéconomie du Conseil National des Recherches d’Italie, le DIST-Politecnico et
Université de Turin et par la Direction de la Météorologie nationale du Niger.
 
Maurizio Tiepolo
added a research item
In tropical regions, heavy precipitations may lead to catastrophic flooding due to the degradation of catchments and the expansion of settlements in flood prone zones. In the current situation, where information on rainfall and exposed assets is either scant, or requires significant time to be collected, pluvial flood risk assessments are conducted using participatory tools, without any scientific support. Another option is to use satellite precipitation products, digital terrain models and satellite images at high to moderate-resolution. However, these datasets do not reach the required accuracy at the local scale. Consequently, the potential damages and the evaluation component of risk assessment are often missing. Risk evaluation is pivotal for informed decision making, with regards to the choice of treating or accepting the risk, implementing more effective measures, and for determining the safest areas for development. We proposed an improved method for assessing the risk of pluvial floods, which merges local and scientific knowledge and is consistent with the ISO 31010 standard. The method was successfully applied in five rural settlements in Niger and can be replicated in areas where information is scarce.
Vieri Tarchiani
added a research item
During the last 20 years, floods have become a major hazard in West Africa, particularly in the Sahelian belt, affecting livelihoods, infrastructure and production systems, and hence heavily impacting on sustainable development. The Sendai Framework for Disaster Risk Reduction 2015-2030 recognized Climate Services (CS) as a powerful tool for more effective disaster preparedness. The European research and innovation Roadmap for CS expands their contribution, particularly "hydrometeorological services", to the Sendai Framework. From this convergence, Hydrometeorological Early Warning Systems (EWS) become a strategic target and a building block of preparedness to hydrometeorological risks in developed and developing countries. In West Africa, EWS for floods are in place only for the main rivers and are conceived mainly top-down and hazard centered, lacking links with exposed communities and expected impacts. These gaps reduce the effectiveness of a flood EWS, while engaging local communities since de beginning through a co-production process can improve the effectiveness and ensure better response in case of alert. Our study aims to present the lessons learnt from the setup of a Community and Impact Based Flood EWS on the Sirba River in Niger. The service was developed with stakeholders at different levels, leveraging on existing resources and knowledge, using simple but effective approaches and integrating state-of-the-art hydro-meteorological science in a decisional scheme of Sahelian rural areas. This mechanism can be replicable in different contexts characterized by knowledge and structural deficits, by creating a better capacity to exchange data and information and by directly connecting available technical capabilities with the local level. The participatory approach allowed the beneficiaries to define the rules of the system, which, in any case, needed to be consistent with the national legislation and internationally recognized best practices. The study suggests that it is not necessary to develop complex forecasting tools, while it can be preferable to enhance those already operating and calibrate them on the local scale through risk thresholds, field observations and potential impacts using flood scenarios. The strength of simplicity also lies in not having to spread complex messages, but simply the reference risk scenario, and finally its color-code (according to the international standards of ISO 22324:2015), which already embeds all other information including potential impacts. The simple and integrated approach illustrated in this case study, bridging the gap between top-down and bottom-up approaches, can
Vieri Tarchiani
added an update
Après la campagne agropastorale 2020, une évaluation d'impact de l'assistance agrométéorologique pour les producteurs ruraux fournie par le projet ANADIA2 a été confiée à l'INRAN.
Une enquête de terrain a été conduite par une équipe coordonnée par le Dr. Idrissa Oumarou Allele dans les 8 communes pilotes de ANADIA2. Les résultats concluants de l'évaluation montrent que les producteurs utilisent l'information reçue pour plusieurs activités parmi lesquelles le choix des semences, le choix de la date de semis et d'autres opérations agricoles. La mesure des rendements a montré que les agriculteurs qui ont été formés à l'utilisation des services agrométéorologiques et qui reçoivent et utilisent l'information ont eu des rendements le 18% supérieurs aux autres agriculteurs.
 
Vieri Tarchiani
added 4 research items
Dans le cadre du projet ANADIA2.0, un des axes prioritaires d’action est l’assistance agrométéorologique aux producteurs ruraux qui a été mise en place à partir de la campagne 2018-19. Pour la campagne agricole 2020-2021, 5 communes de la région de Dosso et 3 communes de la région de Tillaberì ont été ciblés, notamment Tessa, Falmey, Tounouga, Kieché et Guecheme, Ouro Gueladjo, Namaro et Gotheye. Les lignes d’activité de l’assistance agrométéorologique pour la campagne agricole 2020-2021, ont été : • Renforcement des capacités de la DMN dans la production d’avis agrométéorologiques pour les producteurs ruraux • Production et diffusion des bulletins décadaires d’assistance agrométéorologique et d’avis agrométéorologiques pour les producteurs ruraux ; • Renforcement de la collaboration entre services techniques centraux et locaux : notamment la collecte des informations sur le suivi agrométéorologique de la campagne et données pluviométriques par smartphone ; • Renforcement du système de communication à travers les radios rurales : réception des avis par la DMN et diffusion des messages en langue locale • Renforcement des capacités des producteurs ruraux à travers les séminaires itinérants et la mise à leur disposition de pluviomètres paysans. • Suivi Evaluation de l’efficacité du dispositif et des impacts à travers une enquête de fin campagne conduite par l'INRAN. Une série d’activités ont été mise en place pour permettre le correcte fonctionnement de la chaîne de production et diffusion de l’information. Le présent rapport a la finalité de présenter les activités 2020 avec l’esprit de fournir une vision d’ensemble des initiatives à soutien de la production agricoles effectuées dans le contexte du projet ANADIA2. Les résultats encourageants du projet sont dus au travail pluridisciplinaire des équipes DMN, IBE et des Communes pilotes qui ont collaborées en synergie pour permettre la diffusion d’informations utiles pour soutenir la production agricole dans les zones d’intervention du Projet.
Hydrometeorlogical risk reduction and sustainable development: the experience of ANADIA in Ourogueladjo (Niger). This report (in french) documents the valorization of ANADIA results in the municipality of Ourogueladjo, south-west Niger. The Risk reduction plan developed by ANADIA was used to implement water and soil conservation measures, to reduce flood risk and foster agricultural production.
This presentation was offered by Vieri Tarchiani at the 2021 Annual Conference of the European Meteorological Society. The presentation highlights the lessont learnt in the co-development of the Flood Early Warning System on the Sirba River (SLAPIS) in Niger, whithin the ANADIA 2 Project.
Vieri Tarchiani
added an update
Hydrometeorlogical risk reduction and sustainable development: the experience of ANADIA in Ourogueladjo (Niger).
This report (in french) documents the valorization of ANADIA results in the municipality of Ourogueladjo, south-west Niger.
The Risk reduction plan developed by ANADIA was used to implement water and soil conservation measures, to reduce flood risk and foster agricultural production.
 
Maurizio Tiepolo
added 4 research items
L’aide internationale pour l’adaptation au changement climatique en Afrique de l’Ouest augmente de façon exponentielle. Cependant notre compréhension des risques hydro-climatiques ne suit pas cette augmentation. L’objectif du chapitre est de développer une évaluation des risques multi-aléa à l’échelle régionale, basée sur des informations accès ouverte existantes, pouvant être répétée dans le temps et l’espace, utile aux processus de prise de décision. Cette évaluation est menée dans la région de Dosso, la plus touchée par les inondations au Niger, où le risque hydro-climatique est le plus élevé en Afrique de l’Ouest. L’évaluation caractérise le climat, identifie les aléas et analyse le risque multi-aléa sur la période 2011-17 pour chacune des 43 communes de la région. Les aléas et le niveau de risque sont comparés aux domaines d’intervention et aux actions de six plans de développement municipaux et de 12 projets d’adaptation et de résilience. Au cours des sept dernières années, les fortes précipitations et les périodes de sécheresse dans la région de Dosso ont été plus fréquentes qu’au cours de la période précédente de 30 ans. Pas moins de 606 localités ont été touchées à plusieurs reprises et 15 municipalités sont classées comme présentant un risque multi-aléas élevé à grave. La répartition géographique des projets d’adaptation et de résilience ne reflète pas le niveau de risque. Un tiers des plans de développement locaux examinés proposent des actions qui ne visent pas à répondre aux principales menaces hydro-climatiques. https://www.editions-harmattan.fr/livre-risque_et_adaptation_climatique_dans_la_region_de_dosso_au_niger_gaptia_lawan_katiellou_vieri_tarchiani_maurizio_tiepolo-9782343225647-71360.html
D’après la littérature récente, en Afrique subsaharienne l’exposition aux inondations et les dommages qui en découlent sont liés à l’étalement urbain. Par conséquent, il est fréquemment recommandé de donner la priorité à la réduction des risques d’inondation aux villes. Cependant, les connaissances du lien entre l’expansion des zones bâties et les dommages causés par les inondations sont encore trop faibles pour soutenir toute politique de réduction du risque d’inondation à l’échelle locale. La littérature ne permet pas encore de déterminer la dynamique spatiale des établissements humains avec la précision nécessaire pour réduire le risque. Nous ne savons pas quel catégorie d’établissements humains es les plus touchée par les inondations, ni si les mesures en place sont efficaces pour éviter les impacts des inondations. Ce chapitre a deux objectifs. Tout d’abord, déterminer la dynamique spatiale des établissements humains à l’aide de sources d’information plus précises que celles utilisées actuellement. Deuxièmement, vérifier l’efficacité des mesures de réduction du risque d’inondation pluviale dans les établissements humains observés. L’utilisation d’images satellites à très haute résolution, librement accessibles par Google Earth Pro, permet de déterminer l’expansion de 116 établissements humains inondés dans la région de Dosso (Niger) entre 2000 et 2020. La dynamique spatiale est ensuite comparée au taux de maisons effondrées à la suite d’une inondation. Enfin, le nombre des bâtiments effondrés est comparée au nombre des bâtiments avec couverture en tôle ondulée. Nous avons constaté que les villes se développent plus rapidement et avec une tendance opposée à celle rapportée par les bases de données globales. Cependant, les hameaux et les villages se développent encore plus rapidement et connaissent plus d’effondrements de maisons que les villes. La consolidation des bâtiments est plus rapide que l’expansion des établissements humains. Toutefois, cela ne suffit pas à réduire les dommages causés par les inondations pluviales lorsque le cadre bâti est fragile, encore majoritairement en banco, et dépourvu de tout système de drainage des eaux pluviales. https://www.editions-harmattan.fr/livre-risque_et_adaptation_climatique_dans_la_region_de_dosso_au_niger_gaptia_lawan_katiellou_vieri_tarchiani_maurizio_tiepolo-9782343225647-71360.html
Maurizio Tiepolo
added a research item
Flood risk assessments in the Global South have increased since the adoption of the United Nations Sendai Framework for Disaster Risk Reduction 2015–2030. However, they often fail to meet disaster risk reduction needs at the local scale, because they typically consider only one hazard (fluvial or pluvial floods). Furthermore, hazard and exposure are considered as stationary conditions, flood-prone assets are rarely identified, risk reduction measures are not identified in detail for specific locations, and the convenience of reducing or accepting risk is not evaluated. This paper describes a flood risk assessment method that is innovative in that it considers three hazard types (backwater, fluvial, and pluvial floods) and multiple risk scenarios; it uses orthophotos generated from images captured by an unmanned aerial vehicle and very high-resolution satellite images, and it involves communities in risk assessment. The method was applied to four rural settlements along the Sirba River, Niger. The assessment identifies the benefit of reducing risk in monetary terms, as well as the intangible benefits that reducing risk could generate, and it detects opportunities that flooding offers for rural development. The method can be replicated in all contexts where decision-making support is needed for flood risk assessment planning. •Risk analysis and evaluation is participatory. •Risk assessment is improved by combining local and technical knowledge. •Assets are identified using very-high-resolution satellite and drone images.
Vieri Tarchiani
added a research item
This report analyses the floods events in Niger registered since 1998 up to 2020 by the National Floods Database developed by the ANADIA2 Project in Niger. Impacts of floods have been analysed on time and geographical bases in order to provide an updated picture of the trends and distribution of such a new threat for a semi-desertic country.
Maurizio Tiepolo
added a research item
Many people live in rural areas in tropical regions. Rural development is not merely a contribution to the growth of individual countries. It can be a way to reduce poverty and to increase access to water, health care, and education. Sustainable rural development can also help stop deforestation and reduce live-stock, which generate most of the greenhouse gas emissions. However, efforts to achieve a sustainable rural development are often thwarted by oods, drought, heat waves, and hurricanes, which local communities are not very prepared to tackle. Agricultural practices and local planning are still not very risk-informed. These deficiencies are particularly acute in tropical regions, where many Least Developed Countries are located and where there is, however, great potential for rural development. This Special Issue contains 22 studies on best practices for risk awareness; on local risk reduction; on several cases of soil depletion, water pollution, and sustainable access to safe water; and on agronomy, earth sciences, ecology, economy, environmental engineering, geomatics, materials science, and spatial and regional planning in 12 tropical countries.
Vieri Tarchiani
added 3 research items
Flood events are increasing year by year in the Sahel, mainly caused by climate and land use changes. New strategies and tools are necessary to optimize flooding risk reduction plans. This paper presents a new hydrological method (FREM, Flooding Risk Evaluation Method), based on the curve number runoff estimation. The method can be adopted for small-medium basins and is based on the integration of remote sensing techniques with field surveys and participatory mapping. It consists of preliminary identification of the areas and sub-basins that most contribute to the flood risk; scenarios can then be developed in order to: (i) optimize the placement of traditional water retention structures in the elementary sub-basins that contribute most to the overall risk, (ii) assess the contribution of each hydraulic structure to reduce the total risk, (iii) give a priority ranking to these structures identifying those most urgent. The main advantages of this method are that it is easy to use and can be implemented using free available land cover, soil and morphology data and open-source GIS (Geographic Information System) software. A case study for the Ouro Gueladjo basin (Tillabery Region, Niger) is presented.
Remote sensing digital image analysis has been applied to monitor land clearing and degradation processes on a plateau covered by tiger bush near Niamey in South West Niger, where signs of severe landscape degradation due to fuelwood supply have been observed in the last decades. A MODIS NDVI dataset (2000–2015) and five LANDSAT images (1986–2012) were used to identify spatial and temporal dynamics and to emphasize areas of greater degradation. The study indicates that the land clearing found by previous investigations in the second part of the 20th century is still ongoing, with a decreasing trend of MODIS NDVI values recorded in the period 2000–2015. This trend appeared to be linked to an increase in bare soil areas that was demonstrated by analysis of LANDSAT SAVI images. The investigation also indicated that rates of degradation are stronger in more deteriorated areas like those located nearer Niamey; degradation patterns also tend to increase from the inner areas to the edges of the plateau. These results attest to the urgency to develop effective environmental preservation policies and find alternative solutions for domestic energy supply.
Maurizio Tiepolo
added a research item
Niamey, the capital of Niger, is particularly prone to floods, since it is on the banks of the Niger River, which in its middle basin has two flood peaks: one in summer (the red flood) and one in winter (the black flood). In 2020, the Niger River in Niamey reached its all-time highest levels following an abundant rainy season. On the other hand, the floods in Niamey have been particularly frequent in the last decade, a symptom of a change in hydroclimatic behaviour already observed since the end of the great droughts of the 1970s and 1980s and which is identified with the name of Sahelian Paradox. This study, starting from the analysis of the 2020 flood and from the update of the rating curve of the Niamey hydrometric station, analyses the rainfall-runoff relationship on the Sahelian basins of the Medium Niger River Basin (MNRB) that are at the origin of the local flood. The comparative analysis of runoffs, annual maximum flows (AMAX) and runoff coefficients with various rainfall indices calculated on gridded datasets allowed to hydroclimatically characterise the last decade as a different period from the wet one before the drought, the dry one and the post-drought one. Compared to the last one, the current period is characterised by a sustained increase in hydrological indicators (AMAX +27%) consistent with the increase in both the accumulation of precipitation (+11%) and the number (+51%) and magnitude (+54%) of extreme events in the MNRB. Furthermore, a greater concentration of rainfall and extremes (+78%) in August contributes to reinforcing the red flood's positive anomalies (+2.23 st.dev in 2020). The study indicates that under these conditions the frequency of extreme hydrological events in Niamey will tend to increase further also because of the concurrence of drivers such as riverbed silting and levee effects. Consequently, the study concludes with the need for a comprehensive flood-risk assessment on the Niamey city that considers both recent hydroclimatic trends and urbanisation dynamics in flood zones hence defining the most appropriate risk-reduction strategies.
Maurizio Tiepolo
added a research item
The current literature links flood exposure and the consequent damage in the sub-Saharan Africa to urban expansion. The main implication of this pertains to the fact that cities are the target of flood risk reduction. However, our knowledge of the built-up area expansion–flood damage nexus is still too scarce to support any risk reduction policy at the local scale. The objective of this study is to reconsider the link between urban expansion and flood damage widening the observation to rural settlements with open access information alternative to global datasets on flood damages and moderate resolution satellite images. Using very high-resolution satellite images accessible via Google Earth Pro, the expansion of 122 flooded settlements in the Dosso region (Niger) during the past 20 years is evaluated. Spatial dynamics is then compared with the rate of collapsed houses due to flooding. Finally, house collapses and retrofitting are compared. We discovered that cities expand at faster rates and with an opposite trend to that reported by the global datasets. However, hamlets and villages expand even more rapidly and suffer more house collapses than rural towns and cities. House consolidation is quicker than the settlement expansion but this is not sufficient to reduce damage from pluvial flooding. The proportion of the Poor to the total number of inhabitants in rural settlements is three times higher than that in urban settlements. Environmental justice is, therefore, not just an urban issue but a rural urgency.
Maurizio Tiepolo
added 2 research items
Ce rapport contient le plan de réduction des risques d’inondation de Larba Birno, village administratif de la commune rurale de Gothèye, région de Tillabéri, Niger. Larba Birno (4 713 habitants en 2012, 0,7 km2 de surface bâtie en 2018) est situé le long de la rivière Sirba, l’un des principaux affluents du fleuve Niger moyen. Le village est menacé par les inondations fluviales et pluviales. Le plan est structuré selon l’ISO 31010. L’analyse intègre les connaissances locales et scientifiques. Le processus de planification est entièrement participatif. Le risque d’inondation est identifié et analysé. Les zones inondables sont identifiées en fonction de trois scénarios de probabilité d’inondation des rivières grâce à une modélisation hydraulique 1D. Les biens inondables sont identifiés par photo-interprétation visuelle d’images à très haute résolution capturées par un véhicule aérien sans pilote en septembre 2018. Neuf mesures de réduction des risques sont sélectionnées et classées par ordre de priorité. L’analyse bénéfice/coût est utilisée pour évaluer l’opportunité de traiter ou d’accepter le risque. Le dispositif de suivi-évaluation est décrit. Le plan se compose de la réglementation des zones inondables, des cartes d’aléas, des enjeux, du zonage règlementaire, et de fiches décrivant chaque action prioritaire. ------ [ENGLISH] This report contains the Flood Risk Reduction Plan for Larba Birno, an administrative village of the rural municipality of Gothèye, Tillabéri region, Niger. Larba Birno (4713 inhabitants in 2012, 0.7 km2 of built up area in 2018) is located along the Sirba River, one of the main tributaries of the middle Niger River. The village is threatened by fluvial and pluvial floods. The plan is structured according to the international standard ISO 31010. The analysis integrates local and scientific knowledge. The planning process is fully participatory. Flood risk is identified and analyzed. Flood-prone zones are identified according to three river flood probability scenarios through a 1D hydraulic modeling. Floodable assets are identified through visual photointerpretation of very high resolution imagery captured by an Unmanned Aerial Vehicle in September 2018. Nine risk reduction measures are selected and prioritized. Benefit/cost analysis is used to assess the convenience of treating or accepting the risk. The monitoring and evaluation system is described. The plan consists of the flood zone regulation, hazard, assets, and zoning maps, and sheets describing each priority action.
Ce rapport contient le Plan de réduction du risques d'inondation de Garbey Kourou, un village administratif de la commune rurale de Gothèye, région de Tillabéri, Niger. Garbey Kourou (4 600 habitants en 2012, 0,7 km2 de surface bâtie en 2019) est situé le long de la rivière Sirba, l’un des principaux affluents du moyen fleuve Niger. Le village est menacé par les inondations fluviales. Le plan est structuré selon la norme internationale ISO 31010. L’analyse intègre les connaissances locales et scientifiques. Le processus de planification est entièrement participatif. Les risque d’inondation est identifié et analysé. Les zones inondables sont identifiées en fonction de trois scénarios de probabilité d’occurrence grâce à une modélisation hydraulique 1D. Les enjeux sont identifiés après une reconnaissance systématique de terrain. Sept mesures de réduction du risque sont sélectionnées et classées par ordre de priorité. L’analyse bénéfice/coût est utilisée pour évaluer l’intérêt de traiter ou d’accepter le risque. Le dispositif de suivi-évaluation est décrit. Le plan comprend règlement des zones inondables, le zonage règlementaire, les cartes des aléas et des enjeux, ainsi que des fiches décrivant chaque action prioritaire. ------ ENGLISH. This report contains the Flood Risk Reduction Plan for Garbey Kourou, an administrative village of the rural municipality of Gothèye, Tillabéri region, Niger. Garbey Kourou (4600 inhabitants in 2012, 0.7 km2 of built up area in 2019) is located along the Sirba River, one of the main tributaries of the middle Niger River. The village is threatened by fluvial floods. The plan is structured according to the international standard ISO 31010. The analysis integrates local and scientific knowledge. The planning process is fully participatory. Flood risk is identified and analyzed. Flood-prone zones are identified according to three river flood probability of occurrence scenarios through a 1D hydraulic modeling. Floodable assets are identified through a systematic field survey. Seven risk reduction measures are selected and prioritized. Benefit/cost analysis is used to assess the convenience of treating or accepting the risk. The monitoring and evaluation system is described. The plan consists of the flood zone regulation, hazard, assets, and zoning maps, and sheets describing each priority action.
Maurizio Tiepolo
added a research item
Ce rapport contient le Plan de réduction du risques d'inondation de Tallé, un village administratif de la commune rurale de Gothèye, région de Tillabéri, Niger. Tallé (2 603 habitants en 2012, 0,5 km2 de surface bâtie en 2019) est situé le long de la rivière Sirba, près de la confluence avec le fleuve Niger. Le village est menacé par les inondations fluviales. Le plan est structuré selon l’ISO 31010. L’analyse intègre les connaissances locales et scientifiques. Le processus de planification est entièrement participatif. Les risque d’inondation est identifié et analysé. Les zones inondables suite au débordement de la Sirba et de reflux du fleuve Niger sont identifiées en fonction de trois scénarios de probabilité d’occurrence grâce à une modélisation hydraulique 1D. Les enjeux sont identifiés après une reconnaissance systématique de terrain. Huit mesures de réduction du risque sont sélectionnées et classées par ordre de priorité. L’analyse bénéfice/coût est utilisée pour évaluer l’intérêt de traiter ou d’accepter le risque. Le dispositif de suivi-évaluation est décrit. Le plan comprend règlement des zones inondables, le zonage règlementaire, les cartes des aléas et des enjeux, ainsi que des fiches décrivant chaque action prioritaire. ----- (ENGLISH) This report contains the Flood Risk Reduction Plan for Tallé, an administrative village of the rural municipality of Gothèye, Tillabéri region, Niger. Garbey Kourou (2603 inhabitants in 2012, 0.5 km2 of built up area in 2019) is located along the Sirba River, close to the confluence with the Niger River. The village is threatened by fluvial floods. The plan is structured according to the ISO 31010. The analysis integrates local and scientific knowledge. The planning process is fully participatory. Flood risk is identified and analyzed. Areas inundated by the flood of the Sirba river and the backwaters of the Niger river are identified according to three river flood probability of occurrence scenarios through a 1D hydraulic modeling. Floodable assets are identified through a systematic field survey. Eight risk reduction actions are selected and prioritized. Benefit/cost analysis is used to assess the convenience of treating or accepting the risk. The monitoring and evaluation system is described. The plan consists of the flood zone regulation, hazard, assets, and zoning maps, and sheets describing each priority action.
Maurizio Tiepolo
added a research item
This report contains the Flood Risk Reduction Plan for Larba Birno, an administrative village of the rural municipality of Gothèye, Tillabéri region, Niger. Larba Birno (4713 inhabitants in 2012, 0.7 km2 of built up area in 2018) is located along the Sirba River, one of the main tributaries of the middle Niger River. This rural settlement is threatened by fluvial and pluvial floods. The plan is structured according to the international standard ISO 31010. The analysis integrates local and scientific knowledge. The planning process is fully participatory. Flood risk is identified and analyzed. Flood-prone zones are identified according to three river flood probability scenarios through a 1D hydraulic modeling. Floodable assets are identified through visual photointerpretation of very high resolution imagery captured by an Unmanned Aerial Vehicle in September 2018. Three scenarios of pluvial flood are considered. Nine risk reduction measures are selected and prioritized. Benefit/cost analysis is used to assess the convenience of treating or accepting the risk. The monitoring and evaluation system is described. The plan consists of the flood zone regulation, hazard, assets, and zoning maps, and sheets describing each priority action.
Vieri Tarchiani
added a research item
This report analkyses the performance of the Flood Local Early Warning System for Sirba River (Niger), developed whithin the ANADIA2 project, during the 2020 hydrometeorological season, which was extraordinary abundant both in terms of precipitation and flow rates. Based on the evaluation findings, some improvement have been introduced in the system and their impact on the performance have been estimated.
Maurizio Tiepolo
added 4 research items
This report contains the flood risk reduction plan for Sabon Birni, an administrative village of the rural municipality of Tounouga, Dosso region, Niger. Sabon Birni (5270 inhabitants in 2012, 1.2 km2 built up) is located just downstream of the confluence of the dallol (valley) Foga with the dallol Maouri, one of the main wetlands in the country. The village is threatened by heavy rains and run off over a degraded watershed. The plan is structured according to the international standard ISO 31010. Flood risk is identified and analyzed. Risk reduction measures are selected, prioritized and evaluated. The monitoring and evaluation system is described. The plan consists of the flood zone regulation, zoning map and action sheets. The analysis integrates local and scientific knowledge. The planning process is fully participatory. Flood zones are identified according to two flood probability scenarios through 2D hydraulic modeling. Floodable assets are identified through visual photointerpretation of very high resolution open access satellite imagery complemented by ground-based asset recognition. Estimation of residual risk and benefit/cost of treatment are used to assess the convenience of accepting or treating the risk.
This report contains the flood risk reduction plan of Tessa, capital of the municipality of the same name, in Niger. Tessa is a rural local government with 28 868 inhabitants (2012) and a territory of 537 km2. The jurisdiction is crossed by the dallol (valley) Fogha: a long intermittent watercourse tributary of the Niger River and one of the most important wetlands in the country. Tessa town (2841 inhabitants in 2012) is growing fast. The town is not threatened by the overflow of the dallol Fogha but by the intense rains that generate on a deeply degraded catchment area, catastrophic floods. The risk reduction plan is organized according to the international standard ISO 31010. The flood risk is identified and analyzed. Risk reduction measures are identified and evaluated. The participatory monitoring and evaluation system is described. The plan consists of the flood zone regulations, zoning map, and action description sheets. The analysis and evaluation integrate local and scientific knowledge. The methodology and implementation are fully participatory. Flood zones are identified according to two flood probability scenarios through 2D hydraulic modeling. Floodable assets are identified through visual photointerpretation of very high resolution open access satellite imagery complemented by ground-based asset recognition. The assessment uses residual risk and treatment benefit/cost analyses.
This report contains the flood risk reduction plan of Guéchémé, capital of the municipality of the same name, in Niger. Guechémé is a rural local government with 108 778 inhabitants (2012) and a territory of 1075 km2. The jurisdiction is crossed by the dallol (valley) Maouri: a very long intermittent watercourse tributary of the Niger River and one of the most important wetlands in the country. Guéchémé town (8412 inhabitants in 2012) is growing fast. The town is not threatened by the overflow of the dallol Maouri but by the intense rains that generate on a deeply degraded catchment area, catastrophic floods. The risk reduction plan is organized according to the international standard ISO 31010. The flood risk is identified and analyzed. Risk reduction measures are identified and evaluated. The participatory monitoring and evaluation system is described. The plan consists of the flood zone regulations, zoning map, and action description sheets. The analysis and evaluation integrate local and scientific knowledge. The methodology and implementation are fully participatory. Flood zones are identified according to two flood probability scenarios through 2D hydraulic modeling. Floodable assets are identified through visual photointerpretation of very high resolution open access satellite imagery complemented by ground-based asset recognition. The assessment uses residual risk and treatment benefit/cost analyses.
Vieri Tarchiani
added a research item
This Editorial presents the special issue Risk-informed sustainable development in the rural tropics published by the journal Sustainability
Giovanni Massazza
added a research item
In the last decades since the dramatic increase in flood frequency and magnitude, floods have become a crucial problem in West Africa. National and international authorities concentrate efforts on developing early warning systems (EWS) to deliver flood alerts and prevent loss of lives and damages. Usually, regional EWS are based on hydrological modeling, while local EWS adopt field observations. This study aims to integrate outputs from two regional hydrological models-Niger HYPE (NH) and WorldWide HYPE (WWH)-in a local EWS developed for the Sirba River. Sirba is the major tributary of Middle Niger River Basin and is supported by a local EWS since June 2019. Model evaluation indices were computed with 5-day forecasts demonstrating a better performance of NH (Nash-Sutcliffe efficiency NSE = 0.58) than WWH (NSE = 0.10) and the need of output optimization. The optimization conducted with a linear regression post-processing technique improves performance significantly to "very good" for NH (Heidke skill score HSS = 0.53) and "good" for WWH (HSS = 0.28). HYPE outputs allow to extend local EWS warning lead-time up to 10 days. Since the transfer informatic environment is not yet a mature operational system 10-20% of forecasts were unfortunately not produced in 2019, impacting operational availability.
Giovanni Massazza
added a research item
In Sahelian Africa, rural centers have been hit by catastrophic floods for many years. In order to prevent the impact of flooding, the flood-prone areas and the settlement dynamics within them must be identified. The aim of this study is to ascertain the floodplain settlement dynamics in the Maouri valley (135 km 2) in the municipality of Guéchémé, Niger. Through hydraulic modeling, the analysis identified the flood-prone areas according to three return periods. The dynamics of the settlements in these areas between 2009 and 2019 were identified through the photointerpretation of high-resolution satellite images and compared with those in the adjacent non-flood-prone areas. Spatial planning was applied to extract the main dynamics. The synergic application of these disciplines in a rural context represents a novelty in the research field. Since 2009, the results have shown a 52% increase of the built-up area and a 12% increase in the number of buildings, though the increase was higher in the flood-prone areas. The factors that transform floods into catastrophes were identified through perceptions gathered from the local communities. Three dynamics of the expansion and consolidation of buildings were observed. Specific flood risk prevention and preparation actions are proposed for each type of dynamic.
Giovanni Massazza
added a research item
L’Atlas Cartographique représente les scenarios d’inondation calculés à travers la modélisation hydraulique du tronçon nigérien de la Rivière Sirba à partir de la limite burkinabé jusqu’à la confluence dans le Fleuve Niger.
Giovanni Massazza
added a research item
Le Rapport décrit l'état d'avancement dans la mise en oeuvre d'un Système Local d'Alerte Précoce contre les Inondations de la Sirba. Cette étude a été réalisée dans le cadre du Projet ANADIA2.0 par une équipe de travail pluridisciplinaire. L'étude a été cofinancée par l'Agence Italienne pour la Coopération au Développement, le Istituto di Biometeorologia du Conseil National des Recherches d'Italie, le Dipartimento Interateneo di Scienze, Progetto e Politiche del Territorio et la Direction de la Météorologie Nationale du Niger à travers le projet ANADIA2.0 (AdaptatioN Au changement climatique, prévention des catastrophes et Développement agrIcole pour la sécurité Alimentaire -deuxième phase).
Vieri Tarchiani
added 5 research items
Ce rapport présente le mécanisme d'information et communication conçu pour le Système Local d'Alerte Précoce contre les Inondations de la Sirba (SLAPIS). Cette étude a été réalisée dans le cadre du Projet ANADIA2.0 par une équipe de travail pluridisciplinaire composée par : Vieri Tarchiani (Ibimet CNR, Florence) Valentina Marchi (Ibimet CNR, Florence) Mohamed Housseini Ibrahim (DH/DGRE, Niamey). L'étude a été cofinancée par l'Agence Italienne pour la Coopération au Développement
Cette étude présente l'évaluation du risque de sécheresse dans la région de Dosso au Niger. Il se base sur l'analyse des séquences sèches et sur les élaborations faites avec le modèle ZAR (Zones à Risque). Cette étude a été réalisée dans le cadre du Projet ANADIA2.0 par une équipe de travail pluridisciplinaire coordonné par : Aissatou Sita (DMN-Niger) et Maurizio Bacci (IBIMET-CNR)
Ce rapport présente les systèmes de production agricole de la région de Dosso et analyse les vulnérabilités à la sécheresse par rapport aux périodes plus sensibles aux stress hydrique des principales cultures. Cette étude a été réalisée dans le cadre du Projet ANADIA2.0 par une équipe de travail pluridisciplinaire coordonné par Aliou Moumouni Tankari (DSA-MA) et Maurizio Bacci (IBIMET-CNR)
Vieri Tarchiani
added an update
The objective of this report is to assess the performance of the Local Flood Early Warning System for the Sirba river after the first operational test, and particularly to:
1) evaluate the performance
2) identify criticalities
3) identify improvements
L’objectif de ce rapport est de faire le point sur le SLAPIS à la lumière de la première année de test opérationnel et identifier les améliorations pour le futur, en particulier :
1) Evaluer les performances pendant l’année hydrologique 2019 ;
2) Identifier les points de faiblesse de la plateforme d’alerte ;
3) Identifier les améliorations qui puissent augmenter soit la solidité soit les performances du SAP (Système d’Alerte Précoce) pour le futur
 
Vieri Tarchiani
added a research item
The main objective of this report is to assess the implementation of the Local Flood Early Warning System on Sirba river (SLAPIS) after the first year of operational test and particularly: 1) to evaluate the performance on 2019 hydrological season 2) to identify criticalities 3) to identify improvement for increasing both system affordability and performance L’objectif de ce rapport est de faire le point sur le SLAPIS à la lumière de la première année de test opérationnel et identifier les améliorations pour le futur, en particulier : 1) Evaluer les performances pendant l’année hydrologique 2019 ; 2) Identifier les points de faiblesse de la plateforme d’alerte ; 3) Identifier les améliorations qui puissent augmenter soit la solidité soit les performances du SAP (Système d’Alerte Précoce) pour le futur
Vieri Tarchiani
added a research item
Agriculture production in Nigerien rural areas mainly depends on weather variability. Weather forecasts produced by national or international bodies have very limited dissemination in rural areas and even if broadcast by local radio, they remain generic and limited to short-term information. According to several experiences in West Africa, weather and climate services (WCSs) have great potential to support farmers' decision making. The challenge is to reach local communities with tailored information about the future weather to support strategic and tactical crop management decisions. WCSs, in West Africa, are mainly based on short-range weather forecasts and seasonal climate forecasts, while medium-range weather forecasts, even if potentially very useful for crop management, are rarely produced. This paper presents the results of a pilot initiative in Niger to reach farming communities with 10-day forecasts from the National Oceanic and Atmospheric Administration-Global Forecast System (NOAA-GFS) produced by the National Centers for Environmental Prediction (NCEP). After the implementation of the download and treatment chain, the Niger National Meteorological Directorate can provide 10-day agrometeorological forecasts to the agricultural extension services in eight rural municipalities. Exploiting the users' evaluation of the forecasts, an analysis of usability and overall performance of the service is described. The results demonstrate that, even in rural and remote areas, agrometeorological forecasts are valued as powerful and useful information for decision-making processes. The service can be implemented at low cost with effective technologies making it affordable and sustainable even in developing countries. Nonetheless, the service's effectiveness depends on several aspects mainly related to the way information is communicated to the public.
Maurizio Tiepolo
added a research item
Floods have recently become a major hazard in West Africa (WA) in terms of both their magnitude and frequency. They affect livelihoods, infrastructure and production systems, hence impacting on Sustainable Development (SD). Early Warning Systems (EWS) for floods that properly address all four EWS components, while also being community and impact-based, do not yet exist in WA. Existing systems address only the main rivers, are conceived in a top-down manner and are hazard-centered. This study on the Sirba river in Niger aims to demonstrate that an operational community and impact-based EWS for floods can be set up by leveraging the existing tools, local stakeholders and knowledge. The main finding of the study is that bridging the gap between top-down and bottom-up approaches is possible by directly connecting the available technical capabilities with the local level through a participatory approach. This allows the beneficiaries to define the rules that will develop the whole system, strengthening their ability to understand the information and take action. Moreover, the integration of hydrological forecasts and observations with the community monitoring and preparedness system provides a lead time suitable for operational decision-making at national and local levels. The study points out the need for the commitment of governments to the transboundary sharing of flood information for EWS and SD.
Giovanni Massazza
added a research item
In the last decades, the Sahelian area was hit by an increase of flood events, both in frequency and in magnitude. In order to prevent damages, an early warning system (EWS) has been planned for the Sirba River, the major tributary of the Middle Niger River Basin. The EWS uses the prior notification of Global Flood Awareness System (GloFAS) to realize adaptive measures in the exposed villages. This study analyzed the performances of GloFAS 1.0 and 2.0 at Garbey Kourou. The model verification was performed using continuous and categorical indices computed according to the historical flow series and the flow hazard thresholds. The unsatisfactory reliability of the original forecasts suggested the performing of an optimization to improve the model performances. Therefore, datasets were divided into two periods, 5 years for training and 5 years for validation, and an optimization was conducted applying a linear regression throughout the homogeneous periods of the wet season. The results show that the optimization improved the performances of GloFAS 1.0 and decreased the forecast deficit of GloFAS 2.0. Moreover, it highlighted the fundamental role played by the hazard thresholds in the model evaluation. The optimized GloFAS 2.0 demonstrated performance acceptable in order to be applied in an EWS.
Maurizio Tiepolo
added an update
RISD20 • Risk-informed Sustainable Development in the Rural Tropics
International Conference
Turin, Italy
Friday, October 16, 2020
  • submit an abstract or a session proposal
  • discover the opportunities for Africa-based scholars
  • register your participation before September 27
RISD20 at Glance
Climate and Weather Information • Coastal Risk • Drought Risk and Water Access • Fluvial Risk • Observing, Forecasting, Informing and Planning • Risk in Agriculture • Risk Information Management and Communication • Risk-informed Planning
Australia • Bangladesh • Brazil • China • Egypt • Equator • Guatemala • Haiti • India • Kenya • Malaysia • Maldives • Mauritania • Mozambique • Niger • Sahel • Tropical Africa • Western Africa
Grass-root Orgs • Local Governments • Meteorological and Environmental Departments • NGOs • Official Development Assistance • Scholars • Scientists • Students
 
Leandro Rocchi
added a research item
Relevant data on hydroclimatic risks collected in LDCs (Least Developed Countries) by intergovernmental and non-governmental organizations, university institutes, research organizations, projects and programs funded by national and international institutions often are not shared in interoperable way for further usage. Currently emerging climate services offered by global and national meteorological organizations are implemented in order to provide stakeholders and political authorities with useful and reliable information for supporting the decision making process and develop strategies for flooding risk management. However, in order to improve the usability and usefulness of information derived from hydrometeorological forecasts and hydrological models, climate services are expected to be tailored to the actual and local decision-making context. Local flood risk areas mapping is an essential information for a wide number of applications, ranging from engineering to climate change studies, and is crucial for planning effective emergency responses. In this contest, we present the SLAPIS (Système Local d’Alerte Précoce pour les Inondations de la Sirba) web application, developed in the framework of ANADIA 2.0 cooperation project (funded by Italian Agency for Development Cooperation) for the implementation of an early warning system, aiming to better tailor hydroclimatic information to the user's needs, both in terms of content and format. In order to improve the effectiveness of the system, stakeholders have been labeled, from local communities to national decision makers, according with their requirements. The study was carried out in the Middle Niger River Basin, focusing on one of its main tributaries, the Sirba River. From the point of view of Geomatics and Information Communication Technologies (ICT), the activities concerned the conceptual and formal data model design, the development of a Spatial Data Infrastructure (SDI), a client-server architecture and users’ interface, the implementation of standard OWSs (Open Web Services), a Web application and procedures for data flow management from several hydroclimatic data providers. Specific REST Web Services, using JAX-RS technologies, have been implemented in order to allow the communication with other interoperable distributed platforms so enhance the dissemination of the local data. This last task is particularly oriented to the community of experts and researchers who will benefit from this way of data in a standard format exploitable for further analysis. The system also includes the metadata catalog implemented using CKAN allowing data to be findable, accessible, interoperable and re-usable in an easy and standard way. An operational test during the current raining season, conducted with the assistance of the Directorate for Hydrology of Niger, is under way in order to determine the accuracy and improve the reliability of the system. The choice of interoperable web services approach allows to share data and information with other platforms or client software as well as the development of tools for the dissemination of information through ICT applications. In this way it will be possible to provide specific advices for end users at different decision-making levels, bridging the gap between available technology and local users’ needs for adaptation, mitigation and flooding risk management in the Sahel.
Maurizio Tiepolo
added an update
18 articles, 26,000 visualizations, 146 citations/Google Scholar at 1/9/2021.
1. Tiepolo, M.; Belcore, E.; Braccio, S.; Issa, S.; Massazza, G.; Rosso, M.; Tarchiani, V. Method for Fluvial and Pluvial Flood Risk Assessment in Rural Settlements. MethodsX 2021, 8, 101463 (since 21/7/2021).
2. Tiepolo, M.; Galligari, A. Urban Expansion-Flood Damage Nexus: Evidence from the Dosso Region, Niger. Land Use Policy 2021, 108, 105547 (1 citation/Google Scholar since 24/5/2021).
3. Tiepolo, M.; Pezzoli, A.; Tarchiani, V. Risk-informed Sustainable Development in the Rural Tropics. Sustainability 2021, 4279 (406 views/MDPI web site since 9/4/2021).
4. Massazza, G.; Bacci, M.; Descroix, L.; Ibrahim, M.H.; Fiorillo, E.; Katiellou, G.L.; Panthou, G.; Pezzoli, A.; Rosso, M.; Sauzzede, E.; Terenziani, A.; De Filippis, T.; Rocchi, L.; Burrone, S.; Tiepolo, M.; Vischel, T.; Tarchiani, V. Recent Changes in Hydroclimatic Patterns over Medium Niger River Basin at the Origin of the 2020 Flood in Niamey (Niger). Water 2021, 13(12) 1659 (796 views/MDPI web site since 29/3/2021).
5. Massazza, G.; Tarchiani, V.; Anderson, J.L.M.; Ali, A.; Ibrahim, M.H.; Pezzoli, A. Downscaling Regional Hydrological Forecast for Operational Use in Local Early Warning: HYPE Models in the Sirba River. Water 2020, 12(12) 3504 (838 views, 1 citation/Google Scholar since 13/12/2020).
6. Galligari, A.; Giulio Tonolo, F.; Massazza, G. Floodplain Settlement Dynamics in the Maouri Dallol at Guéchémé, Niger: a Multidisciplinary Approach. Sustainability 2020, 12(14), 5632 (627 reads/MDPI, 2 citations/Google Scholar since 13/7/2020).
7. Bacci, M.; Baoua, Y.O.; Tarchiani, V. Agrometeorological Forecast for Smallholder Farmers. A Powerfull Tool for Weather—informed Crops Management in the Sahel. Sustainability 12(8), 3246 (1748 views/MDPI, 1 citation/Google Scholar since 16/4/2020).
8. Tiepolo, M.; Braccio, S. Mainstreaming Disaster Risk Reduction into Local Development Plans for Rural Tropical Africa: a Systematic Assessment. Sustainability 2020, 12(6) 2196 (1560 views/MDPI web site, 5 citations/Google Scholar since 9/4/2020).
9. Tarchiani, V.; Massazza, G.; Rosso, M.; Tiepolo, M.; Pezzoli, A.; Housseini, M.I.; Tamagnone, P.; De Filippis, T.; Rocchi, L.; Marchi, V.; Rapisardi, E. Community and Impact-based Early Warning System for Flood Preparedness: SLAPIS, the Experience from the Sirba River in Niger. Sustainability 2020, 12(5) 1802 (1673 views/MDPI web site, 14 citations/Google Scholar since 28/2/2020).
10. Passerotti, G.; Massazza G.; Pezzoli, A.; Bigi, V.; Zsótér, E.; Rosso, M. Hydrological Model Application in the Sirba River: Early Warning System and GloFAS Improvements. Water 2020, 12 (620) (1427 views/MDPI, 7 citations/Google Scholar since 25/2/2020).
11. Tiepolo, M.; Massazza, G.; Rosso, M.; Belcore, E.; Issa, S.; Braccio, S. Flood Assessment for Risk-informed Planning Along the Sirba River, Niger. Sustainability 2019, 11(15), 4003 (1717 views/MDPI web site, 10 citations/Google Scholar since 24/7/2019).
12. Belcore, E.; Piras, M.; Pezzoli, A.; Rosso, M.; Massazza, G. Raspberry PI3 multispectral low-cost sensor for UAV based remote sensing. Case study in South-west Niger. ISPRS Archives (664 views/Research Gate, 9 citations/Google Scholar since 2019).
13. Massazza, G.; Tamagnone, P.; Wilcox, C.; Belcore, E.; Pezzoli, A.; Vischel, T.; Panthou G.; Ibrahim, M.H.; Tiepolo, M.; Tarchiani, V.; Rosso, M.. Flood Hazard Scenarios of the Sirba River, Niger: Evaluation of the Hazard Thresholds and Flooding Areas. Water 2019, 11(5) (2304 views/MDPI, 18 citations/Google Scholar since 15/5/2019).
14. Tamagnone, P.; Massazza, G.; Rosso, M.; Pezzoli, A. Hydrology of the Sirba River: Updating and Analysis of the Discharge Time Series. Water 2019, 11(1) (2492 views/MDPI, 13 citations/Google Scholar since 26/1/2019).
15. Bigi, V.; Pezzoli, A.; Rosso, M. Past and Future Precipitation’s Trend Analysis for the City of Niamey (Niger): An Overview. Climate 2018, 6(3) (2755 views/MDPI, 14 citations/Google Scholar since 5/9/2018).
16. Tiepolo, M; Bacci, M.; Braccio, S. Multi-hazard Risk Assessment for Planning with Climate in the Dosso Region, Niger. Climate 2018, 6(3) (3802 views/MDPI, 12 citations/Google Scholar since 8/8/2018).
17. Fiorillo, E.; Crisci, A.; Issa, H.; Maracchi, G.; Morabito, G.; Tarchiani, V. Recent Changes of Floods and Related Impacts in Niger based on the ANADIA Niger Database. Climate 2018, 6(3) (3018 views/MDPI, 21 citations/Google Scholar since 3/7/2018).
18. Fiorillo, E.; Maselli, F.; Tarchiani, V.; Vignaroli, P. Analysis of Land Degradation Processes on a Tiger Bush Plateau on South West Niger using MODIS and Landsat TM/ETM + Data. International Journal of Applied Earth Observation and Geoinformation 2017, 62 (19 citations/Google Scholar since 2017).
 
Maurizio Tiepolo
added a research item
South of the Sahara flood vulnerability and risk assessments at local level rarely identify the exposed areas according to the probability of flooding, the actions in place, localize the exposed items. They are, therefore, of little use for local development, risk prevention and contingency planning. The aim of this article is to assess the flood risk, providing useful information for local planning and an assessment methodology useful for other case studies. As a result, the first step involves identifying the information required by the local plans most used south of the Sahara. Four rural communities in Niger, frequently flooded by the Sirba River, are then considered. The risk is the product of the probability of a flood multiplied by the potential damage. Local knowledge and knowledge derived from a hydraulic numerical model, digital terrain model, very high resolution multispectral orthoimages and daily precipitation are used. The assessment identifies the probability of fluvial and pluvial flooding, the exposed areas, the position, quantity, type, replacement value of exposed items, and the risk level according to three flooding scenarios. Fifteen actions are suggested to reduce the risk and to turn adversity into opportunity.
Giovanni Massazza
added a research item
The technology of UAV (Unmanned Aerial Vehicles) is rapidly improving and UAV-integrated sensors have kept up with it, providing more efficient and effective solutions. One of the most sought-after characteristics of on-board sensors is the low costing associated to good quality of the collected data. This paper proposes a very low-cost multiband sensor developed on a Raspberry device and two Raspberry Pi 3 cameras that can be used in photogrammetry from drone applications. The UAV-integrated radiometric sensor and its performance were tested in in two villages of South-west Niger for the detection of temporary surface water bodies (or Ephemeral water bodies): zones of seasonal stagnant water within villages threatening the viability and people’s health. The Raspberry Pi 3 cameras employed were a regular RGB Pi camera 2 (Red, Green, Blue) and a NoIR Pi 3 camera v2 (regular RGB without IR filter) with 8MPX resolution. The cameras were geometrically calibrated and radiometrically tested before the survey in the field. The results of the photogrammetry elaborations were 4 orthophotos (a RGB and NoIRGB orthophoto for each village). The Normalized Difference Water Index (NDWI) was calculated. The index allowed the localization and the contouring of the temporary surface water bodies present in the villages. The data were checked against the data collected with a Sony (ILCE-5100). Very high correspondence between the different data was detected. Raspberry-based sensors demonstrated to be a valid tool for the data collection in critical areas.
Maurizio Tiepolo
added 2 research items
International aid for climate change adaptation in West Africa is increasing exponentially, however our understanding of hydro-climatic risks is not keeping pace with that increase. The aim of this article is to develop a multi-hazard risk assessment on a regional scale, based on existing information, that can be repeated over time and space and that will be useful during decision-making processes. This assessment is being conducted in Dosso (Niger), the region most hit by flooding in the country with the highest hydro-climatic risk in West Africa. The assessment characterizes the climate, identifies hazards and analyses multi-hazard risk over the 2011-17 period for each of the region’s 43 municipalities. Hazards and risk level are compared to the intervention areas and actions of six municipal development plans and 12 adaptation and resilience projects. Over the past seven years, heavy precipitation and dry spells in the Dosso region have been more frequent than during the previous 30-year period. As many as 606 settlements have been repeatedly hit and 15 municipalities are classified as being at elevated-to-severe multi-hazard risk. The geographical distribution of the adaptation and resilience projects does not reflect the risk level. A third of the local development plans examined propose actions that are inconsistent with the main hydro-climatic threats.
In Sahelian countries, a vast number of people are still affected every year by flood despite the efforts to prevent or mitigate these catastrophic events. This phenomenon is exacerbated by the incessant population growth and the increase of extreme natural events. Hence, the development of flood management strategies such as flood hazard mapping and Early Warning Systems has become a crucial objective for the affected nations. This study presents a comprehensive hazard assessment of the Nigerien reach of the Sirba River, the main tributary Middle Niger River. Hazard thresholds were defined both on hydrological analysis and field effects, according to national guidelines. Non-stationary analyses were carried out to consider changes in the hydrological behavior of the Sirba basin over time. Data from topographical land surveys and discharge gauges collected during the 2018 dry and wet seasons were used to implement the hydraulic numerical model of the analyzed reach. The use of the proposed hydraulic model allowed the delineation of flood hazard maps as well the calculation of the flood propagation time from the upstream hydrometric station and the validation of the rating curves of the two gauging sites. These significative outcomes will allow the implementation of the Early Warning System for the river flood hazard and risk reduction plans preparation for each settlement.
Alessandro Pezzoli
added a research item
Temporary surface water bodies in sub-Saharan areas have important socio-cultural values, providing freshwater for population and many agro-pastoral services. Nevertheless, they can be the perfect habitat for insects and pests, thus endangering human health. Moreover, temporary water bodies can cover vast areas of cities and villages hindering the practicability of the roads networks. Addressing the problem within villages and cities requires not only the identification of the extension and position of the water bodies, but also of their seasonal maximum potential extension. Temporary surface water bodies are usually remote sensed from satellite imagery. This technique is very effective on large scale, although limited at local scale by temporal and spatial resolutions of satellites. Traditional surveys can be time-consuming and limited by the hard surveying condition of the area, a valuable alternative to collect punctual and high resolution data are the UAVs (Unmanned Aerial Vehicles). This contribution presents a semi-automatic method to detect temporary surface water bodies at local scale using UAV high resolution imagery. It was tested in two villages of the Tillaberì region, South-West Niger. A digital terrain model (DTM, 10 cm grid) generated from UAV imagery and analysed to localize the depressions of the area with fill sink algorithm. The depressed areas were classified based on their depth and extension. The areas presenting high depth and extension were considered as potentially interested by temporary surface water bodies. The method was validated by the comparison to radiometric information (6cm/pixel) collected from near infrared (IR) and visible (Red Green Blue) sensors mounted on UAV during the rainy season, in a period of minimum expansion of temporary surface water bodies. The radiometric data were elaborated in a Normalized Difference Water Index (NDWI); which information correspond to the one obtained from the DTM. The proposed methodology appears solid and effective, and allows the identification of those areas that may be interested by temporary stagnant water in case of abundant precipitations. The cross-reading of radiometric and digital elevation information provides a high resolution localization of present, and potentially present, temporary surface water bodies.
Maurizio Tiepolo
added an update
NewDist Newsletter 10, apr 2019, 6-7.
 
Paolo Tamagnone
added a research item
The Sahelian regions are affected by an increasing number of catastrophic floods in recent years as a consequence of climate and land use/land cover changes. River flow data is key to understanding river behavior and develop flood mitigation and prevention strategies. The present study provides a revision and an update of the existing discharge dataset of the Sirba River with the aim of enhancing the reliability of these data. The revision also includes the recalibration of the Garbey Kourou rating curves. The analysis of the revised discharge time series strengthens the previous findings, evidencing a positive trend in flood frequency and intensity over the entire analyzed period of 1956–2018. This positive trend is more pronounced for the last 40 years due to a significant underestimation of the rating curves used. A relevant finding is a new changepoint in the time series, detected for 2008, which represents the beginning of the period in which the highest flood magnitudes were registered. The effect of land use/land cover changes and climate changes on the water resource is depicted using flow duration curves. This research produces a revised and more reliable discharge time series that will be a new starting point for future hydrological analyses.
Maurizio Tiepolo
added an update
ANADIA 2 is a three-year research-action project for adaptation to climate change, disaster prevention and agricultural development in Niger co-financed by the Italian Agency for Development Cooperation, by Ibimet-CNR (Lead Partner), by the Politecnico and University of Turin and by the Directorate for National Meteorology of Niger.
Any research on complex issues that aims to produce meaningful and replicable results requires long-term work with partner communities and a multidisciplinary approach. ANADIA 2 continues in fact the previous ANADIA project (2014-16) until April 2020 extending collaboration to the Agrhymet Regional Center, the Ministry of Hydraulics and Sanitation, the Early Warning Unit at the Prime Minister Office, the Agriculture and Livestock Ministry and 5 municipalities of the Dosso region. The Politecnico and University of Turin participates with Maurizio Tiepolo (principal investigator), Alessandro Pezzoli, Maurizio Rosso, the PhD students and grant holders Elena Belcore, Velia Bigi, Sarah Braccio, Giovanni Massazza and Paolo Tamagnone.
On a national scale, ANADIA 2 has organized and set up the national flood database for online access: 20 years of records on affected settlements and damages useful for risk reduction decision making.
On a regional scale, the Project operates along the Nigerien reach of the Sirba River (100 km approx.): The main tributary of the mean Niger River basin. Before the arrival of ANADIA 2, the Sirba was monitored with only one gauging station near the confluence into the Niger River. The goal of ANADIA 2 is to create a flood early warning system for the benefit of human settlements along the Sirba River and the city of Niamey just downstream. The Project has installed a second station 100 km upstream of the existing one, which should allow the alert sufficiently in advance. Two topographic surveys and a hydrometric measurement campaigns allow the preparation of the hydraulic numerical model and the flooding thresholds according to different scenarios. Moreover, land surveys and meetings with local communities made possible to identify exposed locations and receptors in order to draw up plans for the reduction of flood risk. As for the pluvial flooding, which generates stagnant water in the inhabited areas, the exposed areas were identified through the cross analysis of radiometric and altimetric information collected by unmanned aerial vehicles.
In the Dosso region, a multi-hazard risk assessment (flood and drought) has enabled the identification of 5 target municipalities (Falmey, Guéchémé, Kiéché, Tessa, Tougouna) to provide with risk reduction plans. To prepare these plans, a vocational training was organized for 20 mayors and municipal officers. Among the actions to reduce the hydro-climatic risk ANADIA 2 provides a new 10-day agro-meteorological forecasting service and collects rainfall and agro-meteorological data at village level through a dedicated app and the use of smartphones.
To know more:
 
Edoardo Fiorillo
added a research item
During the last two decades, the sub-Saharan region has experienced unusual floods that have differentially impacted the region. No official and precise data regarding flood damage and impacts on the population are available, and the magnitude of events are not easily evaluated. Most previous studies have investigated this new threat using data derived from local media sources or world disaster databases. The aim of this study was to provide the scientific community and policy makers with an updated and reliable referenced data source concerning floods in Niger between 1998 and 2015, at national, regional and sub-regional scales. Reliable information regarding floods was derived from the national official flood damage database (ANADIA DB) showing their impact on the country. During the investigated period, considerable numbers regarding flood impacts were found (about 4000 settlements and 1.7 million people were affected by floods). The analysis also indicates a sudden increase in flood impacts since 2010. Regions in the southwest (Tillabery, Dosso and Niamey district) are the most affected; however, this kind of risk involves the whole country, and some particularly vulnerable areas have been identified. A data modeling comprehensive framework based on remotely sensed rainfall (climate hazards group infrared precipitation with stations (CHIRPS)) and vegetation index (moderate resolution imagery spectroradiometer normalized difference vegetation index (MODIS NDVI)) datasets data along with census data were used to investigate which variables are most able to explain the recent and sudden Niger flood vulnerability detected at the departmental scale. Only a few statistically significant flood damage models were found (61 out of 297), due essentially to the non-linearity of the increase in damage time series compared to environmental and climatic trends. The population increase is the most significant variable at national level; however, at regional and sub-regional scales, different patterns provided evidence to identify local triggers for vulnerability.
Maurizio Tiepolo
added 2 research items
Entre 1990 et 2010 le changement climatique (CC) en Afrique de l’Ouest s’est manifesté avec une fréquence accrue des précipitations intenses, un réchauffement général et des vagues de chaleur. Dans la même période, les catastrophes hydro-climatiques ont augmenté en nombre. A partir de 2011, l’aide internationale à l’adaptation au CC dans les 17 pays de la région a dépassée 7 milliards de dollars américains. Mais la connaissance des risques hydro-climatiques ne va pas de pair. L’objectif de ce rapport technique est de développer une évaluation du risque multi-aléa (inondation et sécheresse météorologique) à l’échelle régionale (avec la commune comme unité géographique d’analyse) sur la base des informations existantes, reproductible au fil du temps et dans l’espace, utile pour la prise de décision en matière de réduction du risque. L’évaluation est menée sur la région de Dosso (Niger), la plus touchée par les inondations dans le pays présentant le risque hydro-climatique le plus élevé en Afrique de l’Ouest. L’évaluation caractérise le climat, identifie les aléas et analyse le risque multi-aléa (inondation et sécheresse météorologique) sur la période 2011-16 pour les 43 communes de la région. Aléa, localités exposées et niveau de risque sont comparés avec les zones d’intervention et les actions développées par 6 Plans de Développement Communal (PDC) et par 14 projets d’adaptation/résilience au CC. Entre 2011 et 2016, dans la région de Dosso, les précipitations intenses sont plus fréquentes et les sécheresses plus longues et plus nombreuses qu’au cours de la période 1980-2010. Trente-trois localités ont été inondées plusieurs fois et 135 localités ont été touchés par la sécheresse pendant trois ans ou plus. Six communes sont à risque multi-aléa très fort ou fort : Tounouga, Guéchémé, Dogondoutchi, Tanda, Kieché, Falmey. La répartition géographique des projets d’adaptation et de résilience est inversement proportionnelle au niveau de risque multi-aléa. Un tiers des PDC étudiés proposent des actions incohérentes avec les principales menaces hydro-climatiques.
De 2010 à 2016, 715 projets d’adaptation et de résilience au changement climatique ont été financés en Afrique de l’Ouest pour plus de 7,3 milliards de dollars américains. Mais la connaissance des risques hydro-climatiques ne va pas de pair et reste peu orientée vers l’aide à la décision. L’objectif de ce rapport est de développer une analyse du risque d’inondation à l’échelle régionale (avec la commune comme unité géographique d’analyse) sur la base des informations existantes, reproductible au fil du temps et dans l’espace, utile à la décision. L’analyse est réalisée sur la région de Dosso (Niger), la plus touchée par les inondations dans le pays le plus à risque hydro-climatique en Afrique de l’Ouest. Le rapport identifie et analyse le risque d'inondation sur la période 1998-2016 pour chacune des 43 communes de la région. Au cours de 19 ans, on observe une hausse des précipitations sur le grand Nord et le Sud de la région et des déficits sur le Centre-Est et partie du Nord. Les inondations sont produites par débordement du fleuve Niger, suite au ruissellement et à la remonté des eaux (dallols). Dans la région de Dosso, 356 localités (482 000 habitants) ont été inondées entre 1998 et 2016, dont 62 pendant plusieurs années. Le niveau de risque est mesuré avec l’Indice de Risque d’Inondation (IRI) en tant que produit de l’aléa (probabilité de retour d’une pluie critique) et des dommages (personnes affectées, maisons et champs inondés). Quatorze communes s’avèrent être à très fort et fort risque d’inondation. Les communes les plus à risque selon la zone agro écologique dominante sont Zabori (dallol), Tounouga (dallol et fleuve), Tanda (fleuve), Tessa (plateau), Falwel (zone pastorale), Tombo Koarey I (zone dunaire).
Vieri Tarchiani
added an update
IBIMET-CNR in collaboration with the Early Warning System of Niger (CC/SAP-PC) is developing a new and improved version of the National Database of Floods for Niger. Actually data from 1998 to 2017 are gathered, standardized and harmonised in a stand-alone relational database. the new version will allow remote access and visualisation of data and maps.
for any information and update contact e.fiorillo@ibimet.cnr.it
 
Maurizio Tiepolo
added an update
From 28th January to 4th February 2018 DIST-Politecnico and University of Turin (M. TIEPOLO and V. BIGI) in collaboration with the Directorate of National Meteorology (G.L. KATIELLOU), the Direction of Hydraulics (M.I. HOUSSEINI), and the National Council for the Environment and Sustainable Development (M. IDRISSA) offered a capacity building on Flood Risk Analysis and Risk Reduction Plans to mayors and officers from the municipalities of Gothèye, Namaro, Torodi and to officers from the Department of Gothèye in the Tillaberi region, western Niger. The three municipalities are bordered by the river Sirba in whose watershed climate change is generating repeted catastrophic floods.
Theory was followed by field immersion experience at Larba Birno (4,713 inhabitants in 2012) and at Touré (8,203 inhabitants in 2014), the two major settlements along the river Sirba in the Niger section.
Meetings with local authorities and the inhabitants of the two settlements brought to the identification of threats, floods dynamics, causes, origins and factors determining disasters. Actions to reduce the flood risk were identified and ordered according to priorities using ERA (ex ante Evaluation of Risk reduction Actions). In each settlement discussion was followed by the georeferenciation of the highest water level, the stagnant waters, and the receptors. Two flood risk reduction plans will be prepared starting from this analysis.
 
Maurizio Tiepolo
added a project goal
Contributing to the development of sustainable agriculture, adapted to climate change and less vulnerable to extreme events to contribute to Niger's food security.
Extend the approach tested with the previous ANADIA project to the Dosso (Niger) region, consolidating the approach and enhancing collaboration between different administrative levels (Min. of Hydraulics, Min. of Agriculture, Early Warning System, National Council for the Environment and Sustainable Development, Municipalities).
 
Maurizio Tiepolo
added an update
From 21 to 22 December 2017 a mission of Ibimet - National Research Council of Italy (M. BACCI, V. TARCHIANI) and DIST-Politecnico and University of Turin (M. TIEPOLO) went to Niamey at the National Council for the Environment and Sustainable Development to present 5 reports on the Dosso region to the Environment, Livestock, Territorial Planning and Community Development Directorates, Agricultural Resources, Water Resources of the Dosso region, to the DMN, to the Agricultural Statistics Directorate of the Ministry of Agriculture and Livestock, to the Ministry of Hydraulics and Sanitation, to the Red Cross of Dosso:
• Climate study of the Dosso region (Katiellou, Bacci et al.)
• Study of production systems in the Dosso region (Moumouni Tankari)
• Analysis of flood risk on a municipal scale in the Dosso region, 1998-2016 (Tiepolo, Ali, Bacci, Braccio Issa, Oumarou)
• Risk of agricultural drought in the Dosso region (Adamou Sitta, Bacci et al.)
• Evaluation of the multi-hazard (flood and drought) risk in the Dosso region at municipal scale, 2011-2016 (Tiepolo, Adamou Sitta, Ali, Bacci, Baoua, Braccio, Moumouni Tankari, Oumarou)
Following the multi-hazard risk index, five municipalities were identified to develop future actions of the ANADIA 2.0 project:
· Tounouga, population 43,000, at very high multi-hazard risk, representing the dallol Maori and river Niger agro-ecological zone
· Guéchémé, population 109,000, very high multi-hazard risk, representing the dallol Maori agro-ecological-zone
· Falmey, population 103,000, high multi-hazard risk, representing the dallol Bosso and river Niger agro-ecological zone
· Kiéché, population 49,000, high multi-hazard risk, representing the dallol Maori agro-ecological zone
· Tessa, population 27,000, moderate multi-hazard risk, representing the plateau and the dallol Fogha agro-ecological zone
 
Maurizio Tiepolo
added an update
From 18 to 19 December 2017 a mission of Ibimet - National Research Council of Italy (M. BACCI, V. TARCHIANI) and DIST-Politecnico and University of Turin (G. MASSAZZA, A. PEZZOLI, M. TIEPOLO) went to Niamey at the National Council for the Environment and Sustainable Development to present the feasibility study for the flood early warning system (EWS) of the Sirba river to the mayors of Gotheye, Namaro and Torodi, to the representatives of the Directorate General of Civil Protection, the Ministry of Humanitarian Action and Disaster Management, the Ministry of Agriculture and Livestock, the Ministry of Hydraulics and Sanitation, of the Agrhymet Regional Center under the chairmanship of M. LABO, head of the Directorate for National Meteorology (DMN).