Jorge Rocha

University of Lisbon | UL · Institute of Geography and Territorial Planning

To effectively plan and manage the use of agricultural land, it is crucial to identify and evaluate the multiple human and environmental factors that influence it. In this study, we propose a model framework to identify the factors potentially explaining the use of agricultural land for wheat, maize, and olive grove plantations at the regional leve...

The first case of COVID-19 in continental Portugal was documented on the 2nd of March 2020 and about seven months later more than 75 thousand infections had been reported. Although several factors correlate significantly with the spatial incidence of COVID-19 worldwide, the drivers of spatial incidence of this virus remain poorly known and need fur...

Mosquito-borne infections are increasing in endemic areas and previously unaffected regions. In 2020, the notification rate for Dengue was 0.5 cases per 100,000 population, and for Chikungunya <0.1/100,000. In 2019, the rate for Malaria was 1.3/100,000, and for West Nile Virus, 0.1/100,000. Spatial analysis is increasingly used in surveillance and...

Commuting flows and long-distance travel are important spreading factors of viruses and particularly airborne ones. Therefore, it is relevant to examine the association among diverse mobility scenarios and the spatial dissemination of SARS-CoV-2 cases. We intended to analyze the patterns of virus spreading linked to different mobility scenarios, in...

This study addresses the methodological gap in tourism research regarding the long-term monitoring of tourism activities in urban settings. We propose an analytical framework that uses data from location-based social networks (LBSN) to derive tourists’ digital footprints resulting in a sustained, yet partial, overview of tourist activity and mobili...

b> Introduction: In the context of climate emergency, advances in geographic information systems, geocoding, and geomedicine allow us to go beyond the conventional usual scales and be aligned with people’s needs, improving knowledge and accuracy of the spatial pattern of health outcomes. This study shows that the geographical scale of analysis affe...

Social vulnerability, as one of the risk components, partially explains the magnitude of the impacts observed after a disaster. In this study, a spatiotemporally comparable assessment of social vulnerability and its drivers was conducted in Portugal, at the civil parish level, for three census frames. The first challenging step consisted of the sel...

Monitoring land-use patterns and its trends provides useful information for impact evaluation and policy design. The latest in-depth studies of land-use dynamics for continental Portugal are outdated, and have not examined how municipalities may be classified into a typology of observed dynamics or considered the trajectory profiles of land-use tra...

RESUMO Os cenários futuros de subida do nível do mar em Portugal colocam, previsivelmente, em risco áreas sensíveis do ponto de vista natural e urbano. Partindo da definição da linha de máxima preia-mar de águas-vivas equinociais, a suscetibilidade à inundação costeira é avaliada recorrendo às alturas de sobre-elevação meteorológica, ao espraio de...

A Europa é um complexo de territórios rurais e urbanos, com as populações a viverem de formas muito diferentes, mas enfrentando desafios comuns. De facto, podemos considerar que as populações das cidades e dos campos são mutuamente dependentes, sendo necessário promover inter-relações mais duradouras entre estes territórios para um futuro mais sust...

Fluvial flooding continues to be a process that has a major impact on society, the environment and the economy. Although its natural triggering factors, the spatial configuration of exposure and vulnerability is expected to play a relevant role in explaining the damage records. The starting point of this research is the use of existing flood suscep...

The Aedes aegypti mosquito is the main vector for several diseases of global importance, such as dengue and yellow fever. This species was first identified on Madeira Island in 2005, and between 2012 and 2013 was responsible for an outbreak of dengue that affected several thousand people. However, the potential distribution of the species on the is...

One of the most important features of topographic maps is the stream network. Its accurate representation is essential for several applications. This work evaluates the quality of the stream network representation of Brazil and Portugal's official topographic maps. These maps were produced using different scales (1:10,000, 1:25,000, and 1:50,000) a...

The World Health Organization declared COVID-19 as a pandemic disease on 12 March 2020. Currently, this disease caused by the SARS-CoV-2 virus remains one of the biggest public health problems in the world. Thus, it is essential to apply methods that enable a better understanding of the virus diffusion processes, not only at the spatial level but a...

Agricultural systems supply a wide range of ecosystem services. Projecting future agricultural land-use changes is key to anticipating the potential impacts of human activities. In this work, we assessed future agricultural land-use changes, using the Dinamica-EGO platform, under three scenarios: A0-(business-as-usual), A1-(sustainable agriculture)...

RESUMO: A COVID-19 foi declarada pela OMS como doença pandémica a 12 de março de 2020. Atualmente a doença causada pelo SARS-CoV-2 continua a constituir um dos maiores problemas de saúde pública a nível mundial. Apesar de ter sido desenvolvida uma vacina, esta apenas diminui o risco de contágio, e não garante que o indivíduo vacinado não venha a co...

O ambiente urbano há muito que é reconhecido como um importante determinante da saúde e do bem-estar. Historicamente, este centrou-se na poluição, na doença e na sobrepopulação, mas existem agora provas crescentes dos impactes do ambiente urbano físico na saúde e bem-estar, tanto positivos como negativos. Este estudo tem o intuito de compreender o...

Caetano, Mário Direção Geral do Território, mario.caetano@dgterritorio.pt RESUMO: Para fazer face aos incêndios florestais o SDFCI estabelece faixas de gestão de combustíveis como forma de auxiliar o combate e mitigação deste problema. O objetivo do trabalho foi elaborar um modelo capaz de identificar a remoção da vegetação nestas faixas através da...

A propagação de doenças transmitidas por vetores causa grandes preocupações ao nível da saúde pública. A dispersão de vetores é fomentada pelos fluxos comerciais internacionais, em particular o comércio de pneus e plantas. Neste trabalho, foi investigada a potencial relação entre fluxos comerciais internacionais e o potencial de dispersão de Aedes...

Out of the many aspects of health care, the concept of physical accessibility is a priority that not only encompasses availability of health care resources, but also requires that they are easily accessible for all. To assess this factor as expressed in terms of the number of available physicians in the northeastern part of Kazakhstan, we used the...

Fluvial flooding continues to be a process that has a major impact on society, the environment and the economy. Although its triggering factors are natural, the spatial configuration of exposure and vulnerability is expected to play a relevant role in explaining the damage records. The starting point of this research is the use of existing flood su...

A difusão do novo coronavírus tem importantes associações com a mobilidade da população. Recorrendo a modelos de regressão linear múltipla, com informação epidemiológica da Direção-Geral da Saúde (DGS) e dados de mobilidade disponibilizados pela Google, captura-se a relação causal existente entre alterações na mobilidade e a tendência de incidência...

O consenso entre modelos de adequabilidade para a presença do mosquito-tigre na Europa foi analisado, utilizando 7 modelos representando condições atuais e 5 com projeções climáticas futuras. A partir da harmonização e conversão dos resultados dos modelos, foram definidas três classes: elevada adequabilidade, baixa adequabilidade e incerteza, tendo...

O interesse por informação credível e atualizada no âmbito da evolução pandémica conduziu à necessidade de desenvolver um instrumento que permitisse a disseminação de informação sobre o estado da difusão da COVID-19. No dashboard desenvolvido é integrada informação segundo quatro níveis territoriais desde março de 2020 até à atualidade. Suportada n...

Os especialistas referem que o segredo para a "cidade feliz" está ligado às pessoas, mais precisamente ao bem-estar e qualidade de vida. Este estudo tem o intuito de compreender o impacte que o ambiente urbano tem na felicidade dos indivíduos. A análise do bem-estar com recurso à rede social Twitter permite identificar os locais em que o mal-estar...

A Deteção Remota permite explorar dados de modo a melhorar e completar informação dos diferentes tipos de uso e ocupação do solo. Neste artigo utilizou-se a classificação orientada ao objeto para interpretar a informação originada pelo processo de segmentação da imagem, dividindo-a em segmentos homogéneos, com base na sua resposta espectral média,...

Nativo do sudoeste asiático, o mosquito tigre asiático (Aedes albopictus), tem vindo a estabelecer-se progressivamente em áreas do Continente Europeu como espécie invasora. Este mosquito é vetor eficiente de doenças como a Dengue e Chicungunha. Estudos anteriores demonstraram estar associado com a vegetação em meios urbanos. A deteção remota de veg...

Para fazer face aos incêndios florestais o Sistema de Defesa da Floresta contra Incêndios estabelece faixas de gestão de combustíveis como forma de auxiliar o combate e mitigação deste problema. O objetivo do trabalho foi elaborar um modelo capaz de identificar o controlo da biomassa nestas faixas através da análise do NDVI em séries temporais de i...

A pandemia da COVID-19 constitui um dos maiores problemas de saúde pública a nível mundial. Neste trabalho aplicaram-se métodos que permitem entender os processos de difusão do vírus para os municípios de Portugal Continental, através de três etapas: aferir de que modo a mobilidade impacta os processos de difusão; identificar os padrões espaciais e...

Climate change is one of the greatest threats to human health in the 21st century. Global surface temperatures are rising and the frequency and intensity of extreme weather events, such as heatwaves, droughts, floods and storms, are expected to increase in the upcoming decades. Humans, animals, and the overall environment, will be impacted by clima...

Forest fires are considered by Portuguese civil protection as one of the most serious natural disasters due to their frequency and extent. To address the problem, the Fire Forest Defense System establishes the implementation of fuel management bands to aid firefighting. The aim of this study was to develop a model capable of identifying vegetation...

The present work started from the need to streamline the process of monitoring changes in vegetation in the in urban-rural interface fuel management bands, defined by Portuguese legislation as areas where the existing biomass must be totally or partially removed. The model developed uses a time series of Sentinel 2 satellite images to search for ch...

Globally, land use/cover is facing irreversible damages caused by human activities and climate changes. These damages have occurred as a result of land conversions from natural and seminatural areas to anthropogenic uses such as urbanisation and intensive agricultural practices. Land conversions correspond to one of the main environmental threats c...

As ligações entre o rural e o urbano têm sido frequentemente objeto de estudo em Portugal. Ainda assim, as assimetrias entre o rural e o urbano não deixaram de se acentuar ao longo das últimas décadas. A litoralização da população, a concentração populacional nas cidades juntamente com o ainda persistente êxodo rural, contribuíram para um desequilí...

Large volumes of data are becoming increasingly available and can be very valuable for the analysis of different phenomena. These data can originate from multiple sources and be recorded in diverse formats, requiring preliminary scrutiny in order to be further used in scientific analyses. This first crucial phase of filtering and cleansing data is...

A disseminação rápida do SARS-CoV-2 levou à implementação de restrições à mobilidade em inúmeros países. Estas medidas incluem a suspensão de atividades não essenciais ou a redução do limite máximo de passageiros nos transportes públicos, entre outras (Linka et al., 2020). Neste estudo, foi analisada a dinâmica de disseminação do vírus SARS-CoV-2 e...

Agriculture provides the largest share of food supplies and ensures a critical number of ecosystem services (e.g., food provisioning). Therefore, agriculture is vital for food security and supports the Sustainable Development Goal (SDGs) 2 (SDG 2 - zero hunger) as others SDG's. Several studies have been published in different world areas with diffe...

Solar-powered electric vehicles can accelerate the transition to electric mobility, reducing charging needs and operating costs. In the urban environment, however, their potential is somewhat reduced by shadowing from neighbouring buildings. Here we estimate the irradiation losses and solar extended driving range for anywhere on the globe using an...

In coastal areas, the tourism sector contributes to the local economy, generating income, employment, investments and tax revenues but the rapid urban expansion creates great pressure on local resources and infrastructures, with negative repercussions on the residents’ quality of life, but also compromising the visitor’s experience. These areas fac...

Citation: Monteiro, A.T..; Carvalho-Santos, C.; Lucas, R.; Rocha, J.; Costa, N.; Giamberini, M.; Costa, E.M.d.; Fava, F. Progress in Grassland Cover Conservation in Southern

Agricultural statistical data enable the detection and interpretation of the development of agriculture and the food supply situation over time, which is essential for food security evaluation in any country. Based on the historical agricultural statistics, this study produces a long spatial timeseries with annual production values of three cereals...

The Asian tiger mosquito (Aedes albopictus), a vector of dengue, Zika and other diseases, was introduced in Europe in the 1970s, where it is still widening its range. Spurred by public health concerns, several studies have delivered predictions of the current and future distribution of the species for this region, often with differing results. We p...

Integrating solar photovoltaics in electric vehicles can reduce operating costs and extend the driving range. It is particularly appropriate for urban mobility due to the relatively short typical daily travels of urban vehicles. However, shadowing cast by buildings will reduce the solar irradiation falling on the vehicle, reducing its PV generation...

Wildfires occur worldwide and affect different territories in diverse ways. New challenges in wildfire management are emerging, fueled by climatic, land cover, and sociodemographic changes, fostering wildfire science to respond with advanced and inclusive approaches. Supported by technological improvements, wildfire risk modeling is earning relevan...

In this chapter, a hybrid approach integrating Cellular Automata (CA), fuzzy logic, logistic regression and Markov chains for modelling and prediction of land-use and land-cover (LULC) change at the local scale, using geographic information with fine spatial resolution is presented. A spatial logistic regression model was applied to determine the t...

Background: The role of demographic and socio-economic determinants of COVID-19 transmission is still unclear and is expected to vary in different contexts and epidemic periods. Exploring such determinants may generate a hypothesis about transmission and aid the definition of prevention strategies. Objectives: To identify municipality-level demogr...

This article provides an approach to the geographic and quantitative interpretation of tourism intensification, drawing on the concepts of fractals, and fractal dimension (D). Exploring tourism intensification in Lisbon, we first present a geographic construct that represents the spatial layout of tourism based on crowd-contributed spatial signatur...

Aedes albopictus is an invasive mosquito that has colonized several European countries as well as Portugal, where it was detected for the first time in 2017. To increase the knowledge of Ae. albopictus population dynamics, a survey was carried out in the municipality of Loulé, Algarve, a Southern temperate region of Portugal, throughout 2019, with...

The 2030 Agenda for Sustainable Development set 17 Sustainable Development Goals (SDGs). These include ensuring access to affordable, reliable, sustainable and modern energy for all (SGD7) and making cities and human settlements inclusive, safe, resilient and sustainable (SGD11). Thus, across the globe, major cities are moving in the smart city dir...

The present study used the official Portuguese land use/land cover (LULC) maps (Carta de Uso e Ocupação do Solo, COS) from 1995, 2007, 2010, 2015, and 2018 to quantify, visualize, and predict the spatiotemporal LULC transitions in the Beja district, a rural region in the southeast of Portugal, which is experiencing marked landscape changes. Here, w...

Future land use/cover change (LUCC) analysis has been increasingly applied to spatial planning instruments in the last few years. Nevertheless, stakeholder participation in the land use modelling process and analysis is still low. This paper describes a methodology engaging stakeholders (from the land use planning, agriculture, and forest sectors)...

Resumo: A elaboração, com elevada precisão, de mapas de uso e ocupação do solo, através de imagens de satélite e métodos de classificação supervisionados depende, em grande medida, das amostras. Neste sentido, a disponibilidade de informação aberta e grátis oficial é particularmente relevante, uma vez que possibilita um conhecimento mais aprofundad...

Resumo: A presente investigação pretende dar a conhecer o Serviço Postal de Campanha (SPC) do Corpo Expedicionário Português que atuou durante a I Guerra Mundial, na Flandres. A missão do SPC era a permuta de correspondência entre Portugal e o Corpo Expedicionário Português em França, e as comunicações postais internas entre as várias unidades e fo...

Resumo: As ameaças impostas devido ao aquecimento global fazem com que Portugal tenha um risco elevado para o desenvolvimento de novas doenças transmitidas por mosquitos. A espécie Culex pipiens quando infetada com o Vírus do Nilo Ocidental é de extrema importância pois a sua presença é generalizada a todo o território, fazendo isto com que haja um...

Resumo: A criação de Infraestruturas de Dados Espaciais (IDE) representa uma mudança de paradigma na forma como é encarada a informação geográfica pelos técnicos/especialistas/decisores e pelo cidadão em geral. A tendência recente de dados abertos e ciência aberta, exigem plataformas para a distribuição e intercâmbio de dados de investigação, inclu...

Resumo: O crime é um evento dinâmico, distribuído segundo tendências espaciotemporais. Neste artigo implementa-se um processo de análise criminal para a cidade de Lisboa através do mapeamento e análise de ocorrências geolocalizadas. Através de Sistemas de Informação Geográfica (SIG) procura-se otimizar a identificação de padrões espaciotemporais, a...

Open access peer-reviewed Edited Volume https://www.intechopen.com/books/geographic-information-systems-and-science

Open access peer-reviewed Edited Volume https://www.intechopen.com/books/geographic-information-systems-and-science/introductory-chapter-geographic-information-systems-and-science

This research is focused on the susceptibility assessment of shallow slides by modeling the failure and run-out areas separately. The shallow slides failure is evaluated using a statistical method (logistic regression) and for the run-out assessment, a simple cellular automata model is proposed. The existence of shallow slides inventories occurred...