Jean-Philippe Vidal

Jean-Philippe Vidal
French National Institute for Agriculture, Food, and Environment (INRAE) | INRAE · RiverLy

PhD

About

137
Publications
38,727
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
3,288
Citations
Introduction
I am a hydroclimatologist at INRAE. My research deals with the relations between climate and water resources in the Anthropocene. I focus on the long-term evolution of droughts, low-flows and no-flows, and I try and help territories to find ways of adapting to the on-going and projected decline in water availability.
Additional affiliations
March 2013 - April 2020
Ecole Nationale de la Météorologie
Ecole Nationale de la Météorologie
Position
  • Lecturer
Description
  • 1-day course and practical work within the international continuing education training "Climatology, foundation for climate services"
October 2012 - November 2012
UK Centre for Ecology & Hydrology
Position
  • Visiting Researcher
January 2010 - December 2019
Irstea
Position
  • Hydroclimatologist
Description
  • Hydroclimatologist
Education
October 2019 - October 2019
December 2001 - March 2005
Institut National Polytechnique de Toulouse
Field of study
  • Hydroinformatics
October 1998 - September 1999
Institut National Polytechnique de Toulouse
Field of study
  • Project Management: Engineering of Information Systems for Decision Support

Publications

Publications (137)
Preprint
Full-text available
Surface observations are usually too few and far between to properly assess multidecadal variations at the local scale and characterize historical local extreme events at the same time. A data assimilation scheme has been recently presented to assimilate daily observations of temperature and precipitation into downscaled reconstructions from a glob...
Article
Full-text available
Numerous indices exist for the description of hydrological drought. The EURO FRIEND-Water Low flow and Drought Group has repeatedly discussed changing paradigms in the perception and use of existing and emerging new indices for hydrological drought identification and characterization. Group members have also tested the communication of different in...
Article
Anthropogenic impoundments (e.g. large dams, small reservoirs, and ponds) are expanding in number globally, influencing downstream temperature regimes in a diversity of ways that depend on their structure and position along the river continuum. Because of the manifold downstream thermal responses, there has been a paucity of studies characterizing...
Article
Full-text available
Drought events and their impacts vary spatially and temporally due to diverse pedo-climatic and hydrologic conditions, as well as variations in exposure and vulnerability, such as demographics and response actions. While hazard severity and frequency of past drought events have been studied in detail, little is known about the effect of drought man...
Conference Paper
Full-text available
Mountainous areas are an important source of water resources, especially in the Mediterranean. The PIRAGUA project aims at assessing the water resources of the Pyrenees in the past and in the future. To this aim, different modelling approaches were used in order to assess the water resources of the Pyrenees and their future evolution. In this study...
Conference Paper
Full-text available
The Pyrenees range is a transboundary mountain region shared by Spain, France and Andorra. As many other mountain regions, the Pyrenees host the upper catchments and recharge zones of the region's main river basins and aquifers. Therefore, it is the main source of water resources that are used in a much larger area that includes important urban con...
Article
Full-text available
Stream temperature appears to be increasing globally, but its rate remains poorly constrained due to a paucity of long-term data and difficulty in parsing effects of hydroclimate and landscape variability. Here, we address these issues using the physically based thermal model T-NET (Temperature-NETwork) coupled with the EROS semi-distributed hydrol...
Article
Full-text available
L’Outil de Suivi et de Surveillance des Étiages en Cohérence sur le Rhône (OSSEC Rhône) est un outil permettant de caractériser en temps réel les événements d’étiage sur le Rhône et ses principaux affluents. OSSEC repose sur une caractérisation locale des étiages à partir d’un seuil, puis sur la mise en cohérence des étiages locaux au sein d’une pl...
Article
Full-text available
Human activities both aggravate and alleviate streamflow drought. Here we show that aggravation is dominant in contrasting cases around the world analysed with a consistent methodology. Our 28 cases included different combinations of human-water interactions. We found that water abstraction aggravated all drought characteristics, with increases of...
Article
Full-text available
River networks are among Earth’s most threatened hot-spots of biodiversity and provide key ecosystem services (e.g., supply drinking water and food, climate regulation) essential to sustaining human well-being. Climate change and increased human water use are causing more rivers and streams to dry, with devastating impacts on biodiversity and ecosy...
Article
Full-text available
Understanding how water resources vary in response to climate at different temporal and spatial scales is crucial to inform long-term management. Climate change impacts and induced trends may indeed be substantially modulated by low-frequency (multi-year) variations, whose strength varies in time and space, with large consequences for risk forecast...
Preprint
Full-text available
Drought events and their impacts vary spatially and temporally due to diverse pedo-climatic and hydrologic conditions, as well as variations in exposure and vulnerability, such as demographics and response actions. While hazardous severity and frequency of past drought events have been studied in detail, little is known about the effect of drought...
Article
Full-text available
Surface observations are usually too few and far between to properly assess multidecadal variations at the local scale and characterize historical local extreme events at the same time. A data assimilation scheme has been recently presented to assimilate daily observations of temperature and precipitation into downscaled reconstructions from a glob...
Preprint
Full-text available
Stream temperature appears to be increasing globally, but its rate remains poorly constrained due to a paucity of long-term data and difficulty in parsing effects of hydroclimate and landscape variability. Here, we address these issues using the physically-based thermal model T-NET (Temperature-NETwork) coupled with the EROS semi-distributed hydrol...
Article
Full-text available
Intermittent rivers and ephemeral streams (IRES) are now recognized to support specific freshwater biodiversity and ecosystem services and represent approximately half of the global river network, a fraction that is likely to increase in the context of global changes. Despite large research efforts on IRES during the past few decades, there is a ne...
Article
Full-text available
RESUME La profondeur historique des observations de débit est généralement limitée aux 50 dernières années, période trop restreinte pour explorer l’évolution à long terme des étiages extrêmes et des impacts associés. Afin de pallier cette limite, ce travail utilise une réanalyse hydrologique inédite en France, disponible sur la période 1871–2012 po...
Article
Droughts can have strong environmental and socioeconomic impacts in the Mediterranean region, in particular for countries relying on rain-fed agricultural production, but also in areas in which irrigation plays an important role and in which natural vegetation has been modified or is subject to water stress. The purpose of this review is to provide...
Article
Full-text available
In a context of climate, environmental, ecological and socio-economical changes, understanding and predicting the response of hydrological systems on regional to global spatial scales, and on infra-seasonal to multidecadal time-scales, are major topics that must be considered to tackle the challenge of water resource management sustainability. In t...
Article
Full-text available
La compréhension de l’évolution actuelle du climat et des risques naturels qui lui sont associés passe par une meilleure connaissance de la variabilité climatique passée. Des méthodes de reconstruction existent mais leurs validités sont difficiles à établir notamment en l’absence de valeurs de référence sur les périodes anciennes. Ce travail s’insc...
Article
Full-text available
Hydrological research is often focused at the catchment scale; but there are significant benefits from taking a broader spatial perspective (i.e. comparative hydrology) to advance understanding of hydrological processes, especially in the context of global change. Indeed, many of the recently described ‘unsolved problems in hydrology’ (Blöschl et a...
Presentation
Full-text available
Le développement récent d’une réanalyse de surface journalière à 8 km de résolution sur la France et couvrant la période 1871-2012 (FYRE Climate, Devers et al., 2019) a permis de reconstruire – avec des modèles hydrologiques conceptuels – les chroniques journalières de débit de long terme sur plus de 600 bassins versants faiblement anthropisés. Ces...
Poster
Full-text available
El proyecto PIRAGUA, financiado por el Programa Interreg POCTEFA de la UE, aborda la evaluación del ciclo hidrológico de los Pirineos en el contexto del cambio climático. El período de tiempo del proyecto es 2018-2020. Los objetivos del proyecto son unificar y homogeneizar la información existente, evaluar escenarios futuros, desarrollar indicadore...
Article
Full-text available
Attribution of trends in streamflow is complex, but essential, in identifying optimal management options for water resources. Disagreement remains on the relative role of climate change and human factors, including water abstractions and land cover change, in driving change in annual streamflow. We construct a very dense network of gauging stations...
Thesis
Full-text available
Ecrire l'hydrologie de l'Anthropocène
Article
The knowledge of historical French weather has recently been improved through the development of the SCOPE (Spatially COherent Probabilistic Extended) Climate reconstructions. This high‐resolution ensemble daily reconstruction dataset of precipitation and temperature covers the period 1871–2012 and is derived through a statistical downscaling of th...
Article
Full-text available
Quantifying model uncertainty and internal variability components in climate projections has been paid a great attention in the recent years. For multiple synthetic ensembles of climate projections, we compare the precision of uncertainty component estimates obtained respectively with the two Analysis of Variance (ANOVA) approaches mostly used in r...
Presentation
Full-text available
The knowledge of historical French weather has recently been improved through the development of the SCOPE (Spatially COherent Probabilistic Extended) Climate reconstruction, a high-resolution daily ensemble reconstruction of precipitation and temperature covering the period 1871-2012, which is based on a statistical downscaling of the Twentieth Ce...
Article
Full-text available
This paper is the outcome of a community initiative to identify major unsolved scientific problems in hydrology motivated by a need for stronger harmonisation of research efforts. The procedure involved a public consultation through on-line media, followed by two workshops through which a large number of potential science questions were collated, p...
Poster
Full-text available
The knowledge of historical French weather has recently been improved through the development of the FYRE (French Hydrometeorological REanalysis) Climate reanalysis, a high-resolution ensemble daily reanalysis of precipitation and temperature covering the period 1871-2012 (Devers et al., 2018). This new dataset originates from an offline data assim...
Conference Paper
Full-text available
The Pyrenees range is a transboundary region shared by Spain, France and Andorre. As many other mountain regions, it is excedentary in water resources that are used in a much larger area that includes important urban concentrations and productive rural areas. This territory is particularly vulnerable to the consequences of climate change. The PIRAG...
Presentation
Full-text available
La réanalyse climatique FYRE (French Hydrometeorological REanalysis) Climate, une réanalyse ensembliste des précipitations et températures journalières à haute résolution couvrant la période 1871-2012, a permis d’améliorer la connaissance du climat passé en France (Devers et al., 2018). Cette réanalyse provient de l’assimilation « offline » d’obser...
Article
Full-text available
SCOPE Climate (Spatially COherent Probabilistic Extended Climate dataset) is a 25-member ensemble of 142-year daily high-resolution reconstructions of precipitation, temperature, and Penman–Monteith reference evapotranspiration over France, from 1 January 1871 to 29 December 2012. SCOPE Climate provides an ensemble of 25 spatially coherent gridded...
Conference Paper
Several studies have shown that hydrological variability results from the action of atmospheric circulation and watershed dynamics. In France, it has been shown that those factors vary spatially thus several spatial classifications of hydrological variables have been established. Precipitation, temperature and discharge classifications offer an inp...
Presentation
Full-text available
The knowledge of historical French weather has recently been improved through the development of the SCOPE (Spatially COherent Probabilistic Extended) Climate reconstruction, a high-resolution ensemble daily reconstruction of precipitation and temperature covering the period 1871–2012, and based on a statistical downscaling of the Twentieth Century...
Article
Full-text available
SCOPE Climate (Spatially COherent Probabilistic Extended Climate dataset) is a 25-member ensemble of 142-year daily high-resolution reconstructions of precipitation, temperature and Penman-Monteith reference evapotranspiration over France, from 1 January 1871 to 29 December 2012. SCOPE Climate provides an ensemble of 25 spatially coherent gridded m...
Article
Spatial verification methods able to handle high-resolution ensemble forecasts and analysis ensembles are increasingly required because of the increasing development of such ensembles. An ensemble extension of the structure–amplitude–location (SAL) spatial verification method is proposed here. The ensemble SAL (eSAL) allows for verifying ensemble f...
Presentation
Full-text available
The knowledge of historical French weather has recently been improved through the development of the SCOPE (Spatially COherent Probabilistic Extended) Climate reconstruction, a high-resolution daily ensemble reconstruction of precipitation and temperature covering the period 1871-2012, which is based on a statistical downscaling of the Twentieth Ce...
Article
Full-text available
La rareté des mesures et la complexité du terrain dans les régions montagneuses engendrent d'importantes incertitudes dans les réanalyses météorologiques de surface. L'hybridation de plusieurs réanalyses est une technique efficace pour limiter ces incertitudes. Dans le bassin versant de la Durance, deux réanalyses se basant sur des réseaux de mesur...
Poster
Full-text available
The knowledge of historical French weather has recently been improved through the development of the SCOPE (Spatially COherent Probabilistic Extended) Climate reconstruction, a high-resolution daily ensemble reconstruc- tion of precipitation and temperature covering the period 1871–2012 which is based on a statistical downscaling of the Twentieth C...
Poster
Full-text available
Low-flow statistics support the definition of legal thresholds used for estimating environmental flows, and for designing water structures or maximum abstraction levels. In France, the most used low-flow statistics is the annual monthly minimum flow with a 5-year return period (called QMNA5). Such low-flow statistics are moreover usually estimated...
Article
Full-text available
A major part of renewable electricity production is characterized by a large degree of intermittency driven by the natural variability of climate factors such as air temperature, wind velocity, solar radiation, precipitation, evaporation, and river runoff. The main strategies to handle this intermittency include energy-storage, -transport, -diversi...
Presentation
Full-text available
Perfect prognosis statistical downscaling methods (SDMs) are calibrated using predictors from a given large-scale reanalysis over a given period, and subsequently applied with predictors from Global Climate Models (GCMs). Their temporal transferability, i.e. their robustness in a different period – and therefore a different climate – is rarely test...
Poster
Full-text available
This work presents SCOPE Climate, a daily high-resolution ensemble reconstruction of precipitation and temperature fields in France over the 1871-2012 period. The objective is to fill in the spatial and temporal data gaps in surface observations in order to improve our knowledge on the local-scale climate variability from the late nineteenth centur...
Presentation
Full-text available
The record length of streamflow observations is generally limited to the last 50 years even in data-rich countries like France. This is not enough to properly explore the long-term hydrometeorological variability, which is a key to better disentangle the effects of anthropogenic climate change from natural variability. In order to overcome this lim...
Article
Full-text available
In 2015 large parts of Europe were affected by drought. In this paper, we analyze the hydrological footprint (dynamic development over space and time) of the drought of 2015 in terms of both severity (magnitude) and spatial extent and compare it to the extreme drought of 2003. Analyses are based on a range of low flow and hydrological drought indic...
Presentation
Full-text available
The length of streamflow records is generally limited to the last 50 years. It therefore prevents studying the long-term evolution of streamflow regimes. In order to overcome this limit, this work takes advantage of a 140-year ensemble hydrometeorological dataset over France based on: (i) a probabilistic precipitation and temperature downscaling of...
Article
Full-text available
The length of streamflow observations is generally limited to the last 50 years even in data-rich countries like France. It therefore offers too small a sample of extreme low-flow events to properly explore the long-term evolution of their characteristics and associated impacts. To overcome this limit, this work first presents a daily 140-year ense...
Presentation
Full-text available
This work presents a study of extreme low flow events that occurred from 1871 onwards for a large number of near-natural catchments in France. It aims at assessing and comparing their characteristics to improve our knowledge on historical events and to provide a selection of benchmark events for climate change adaptation purposes. The historical de...
Poster
Full-text available
The knowledge of historical French weather has recently been improved through the development of the SCOPE (Spatially COherent Probabilistic Extended) Climate reconstruction, a probabilistic high-resolution daily reconstruction of precipitation and temperature covering the period 1871–2012 and based on the statistical downscaling of the Twentieth C...
Poster
Full-text available
The record length of streamflow observations is generally limited to the last 50 years, which is not enough to properly explore the natural hydrometeorological variability, a key to better understand the effects of anthropogenic climate change. This work proposes a comparison of different hydrometeorological reconstruction datasets over France buil...
Article
Les changements climatiques projetés à l'horizon du milieu du XXIe siècle pourraient avoir des impacts importants sur la disponibilité en eau en France. L'étude prospective Explore 2070, pilotée par le ministère chargé de l'écologie, a ainsi mis en évidence la nécessité de quantifier et d'anticiper ces changements, et de construire des stratégies d...
Presentation
Full-text available
La profondeur historique des observations de débit est généralement limitée aux 50 dernières années et offre de fait un échantillon trop restreint d’événements d’étiage extrêmes pour explorer de manière approfondie l’évolution à long terme de leurs caractéristiques et des impacts associés. Afin de surmonter cette limitation, ce travail s’appuie sur...
Chapter
Full-text available
Drought is a very complex phenomenon involving the atmosphere, soil, vegetation, rivers and underground waters, at different time and space scales. It can be estimated using different indices that make use of meteorological, remote sensing and in situ data, the standardized precipitation evapotranspiration index (SPEI) being a noteworthy index. Dro...
Presentation
Full-text available
This work proposes a comparison of different hydrometeorological reconstruction datasets built on the downscaling of the NOAA 20th century global extended reanalysis (20CR, Compo et al., 2011). It aims at assessing the quality of these reconstructions and improving our knowledge of the multi-decadal hydrometeorological variability over the 20th cen...
Article
Full-text available
Une vision prospective de la gestion de l'eau du bassin de la Durance et des territoires alimentes par ses eaux a l'horizon 2050 a ete elaboree, appuyee par une chaine de modeles incluant des representations du climat, de la ressource naturelle, des demandes en eau et du fonctionnement des grands ouvrages hydrauliques (Serre-Poncon, Castillon et Sa...
Article
Full-text available
This paper proposes a methodology for estimating the transient probability distribution of yearly hydrological variables conditional to an ensemble of projections built from multiple general circulation models (GCMs), multiple statistical downscaling methods (SDMs), and multiple hydrological models (HMs). The methodology is based on the quasi-ergod...