A5068001187- Landslides and related hazards
- Flood Risk Assessment and Management
- Cryospheric studies and observations
- Tree Root and Stability Studies
- Geotechnical Engineering and Analysis
- Soil erosion and sediment transport
- Geological and Geophysical Studies Worldwide
- Coastal and Marine Dynamics
- Tropical and Extratropical Cyclones Research
- Hydrology and Watershed Management Studies
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Hydrology and Drought Analysis
- Fire effects on ecosystems
- Remote Sensing and Land Use
- Geography and Environmental Studies
- Disaster Management and Resilience
- Dam Engineering and Safety
- Groundwater and Watershed Analysis
- Methane Hydrates and Related Phenomena
- Hydrology and Sediment Transport Processes
- Anomaly Detection Techniques and Applications
- Aeolian processes and effects
- earthquake and tectonic studies
- Soil Geostatistics and Mapping
- Land Use and Ecosystem Services
University of Lisbon
2014-2024
Centro de Estudos em Geografia e Ordenamento do Territorio
2012-2024
Universidade dos Açores
2023-2024
Terra Scenica
2022-2023
Associated Research (United States)
2022
Terra
2022
Abstract Compound weather and climate events are combinations of drivers and/or hazards that contribute to societal or environmental risk. Studying compound often requires a multidisciplinary approach combining domain knowledge the underlying processes with, for example, statistical methods model outputs. Recently, aid development research on events, four event types were introduced, namely (a) preconditioned , (b) multivariate (c) temporally compounding (d) spatially events. However,...
Abstract Rainfall is considered the most important physical process for landslide triggering in Portugal. It expected that changes precipitation regimes region, as a direct consequence of climate change, will have influence occurrence extreme rainfall events be more frequently, throughout century. The aim this study relied on assessment projected future over Portugal mainland and quantifying correlation between through Triggering Thresholds (RTTs). This methodology was applied two specific...
Abstract The present work aims to evaluate potential sources of uncertainty associated with rainfall-triggered event-based landslide inventories within the framework susceptibility assessment. Therefore, this study addresses following questions: (i) How representative is an inventory map total activity and distribution in a area?; (ii) reliable map?; (iii) appropriate for independently validating map? To address these questions, two independent contrasting rainfall were used, together...
Abstract. A general methodology for the probabilistic evaluation of landslide hazard is applied, taking in account both susceptibility and instability triggering factors, mainly rainfall. The method applied Fanhões-Trancão test site (north Lisbon, Portugal) where 100 shallow translational slides were mapped integrated into a GIS database. For assessment it assumed that future landslides can be predicted by statistical relationships between past spatial data set predisposing factors (slope...
Coastal regions in Southwest Europe have experienced major interventions and transformations of the territory with unprecedented urban development, primarily related to growing tourism activity. The coast is place where marine terrestrial processes converge, making it highly vulnerable effects climate change. However, lack information on frequency these extreme weather events their impacts hampers an accurate analysis consequences global This paper provides a detailed (EWE) that affected...
This paper presents a procedure for the application of an index-based vulnerability assessment method to seismic risk 292,978 reinforced concrete and 152,916 unreinforced masonry buildings in Lisbon Metropolitan Area (LMA). A singular innovation this proposed methodology is that it tailored be fed with data from 2011 national population housing Census. The results are then combined hazard component into GIS tool used map across LMA. spatial representation these highlights areas different levels risk.
A landslide quantitative risk analysis is applied the municipality of Santa Marta de Penaguião (N Portugal) to evaluate which buildings are exposed, using a vector data model in GIS.Two subgroups were considered: subgroup 1 (event inventory landslides occurred on January 200)1; and 2 (inventoried after 2001 event until 2010). Seven predisposing factors weighted integrated Information Value Method. The susceptibility was independently validated performance expressed by ROC curves.The...
Abstract. This work proposes a comprehensive method to assess rainfall thresholds for landslide initiation using centenary database associated with single daily data set. The is applied the Lisbon region and includes return period analysis that was used identify critical combination (cumulated duration) related each event. spatial representativeness of reference rain gauge evaluated are assessed calibrated receiver operating characteristic (ROC) metrics. Results show events located up 10 km...
Abstract. Landslides occurred in the Lisbon area during last 50 years were almost always induced by rainfall and have been used to establish thresholds for regional landslide activity. In 2006, three new rainfall-triggered events study area, namely on 20 March, 25–27 October, 28 November. Landslide March October 2006 include shallow translational slides few debris flows, corresponding absolute antecedent was found be above threshold durations ranging from 4 10 days. These also fit combined...
Abstract. Assessing the number and locations of exposed people is a crucial step in landslide risk management emergency planning. The available population statistical data frequently have insufficient detail for an accurate assessment potentially to hazardous events, mainly when they occur at local scale, such as with landslides. present study aims apply dasymetric cartography improving spatial resolution assess population. An additional objective compare results those obtained more common...
Abstract Climate change has brought about new risks while exacerbating existing ones, with floods now accounting for 45% of global disasters. This trend indicates that the exposure to and resulting damages will continue rise. paper aims contribute efforts enhance flood resilience in urban areas by introducing a physical vulnerability index buildings flood-prone exploring its connection hazard, as defined European Union Directive 2007/60/EC. An index-based methodology is proposed assess...
Abstract. Approaches used to assess shallow slide susceptibility at the basin scale are conceptually different depending on use of statistical or physically based methods. The former assumption that same causes more likely produce effects, whereas latter comparison between forces which tend promote movement along slope and counteracting resistant motion. Within this general framework, work tests two hypotheses: (i) although methodologically distinct, deterministic methods generate similar...
Floods are natural disasters that often impact communities living in low-lying areas the northern and central parts of Morocco. In this study, our aim was to create a flood susceptibility map using three methods; hierarchy process (AHP) frequency ratio model (FR) weights evidence (WoE) model. We extensively examined area identified by these approaches hydraulic analysis software called HEC-RAS (version 6.3.1). Our focused on Essaouira watersheds Morocco, where we around 197 locations. Out...
<p>Compound weather and climate events are combinations of drivers and/or hazards that contribute to societal or environmental risk. Studying compound often requires a multidisciplinary approach combining domain knowledge the underlying processes with, for example, statistical methods model outputs. Recently, aid development research on events, four event types were introduced, namely (a) <em>preconditioned</em>, (b)...