15 documents found, page 1 of 2

A New Soil Cartography at 1:100,000 scale for mainland Portugal

Portugal does not have detailed and complete soil maps at a scale that is useful for environmental management. Existing data is: Inconsistent and spread across different organizations; Different in terms of scale, methods used and classification systems; Often old maps converted from paper to digital, with missing or incorrect information. The General Soil Map of Portugal (1:1,100,000) is still the only nationa...

Understanding flood risk in urban environments: spatial analysis of building vu...

Climate change has brought about new risks while exacerbating existing ones, with floods now accounting for about 45% of global disasters. This trend indicates that the exposure to floods and resulting damages will continue to rise. This paper aims to contribute to the global efforts to enhance flood resilience in urban areas by introducing a physical vulnerability index for buildings in flood-prone urban areas...

Landslide risk analysis in Portugal: an insight into the municipal level

Landslide susceptibility assessment using different rainfall event based landsl...

The present work aims to evaluate potential sources of uncertainty associated with rainfalltriggered event-based landslide inventories within the framework of landslide susceptibility assessment. Therefore, this study addresses the following questions: (i) How representative is an event-based landslide inventory map of the total landslide activity and distribution in a study area?; (ii) How reliable is an event...

On the seismic vulnerability assessment of urban areas using census data: The L...

This paper presents a procedure for the application of an index-based vulnerability assessment method to the seismic risk assessment of 292,978 reinforced concrete and 152,916 unreinforced masonry buildings in the Lisbon Metropolitan Area (LMA). A singular innovation of this proposed methodology is that it is tailored to be fed with data from the 2011 national population and housing Census. The vulnerability re...

Multi-scale characterization of flood risk components: A case study at the muni...

Floods are complex processes that combine local and global factors, causing recurrent and significant human and material losses worldwide. The presented research consists of a multi-scale flood risk assessment process based on data sources collected at distinct scales, expressing hazard, exposure and physical vulnerability of buildings. Detailed Census-derived parameters are essential in representing exposure a...

Multi-scale characterization of flood risk components: a case study at the muni...

Floods are complex processes that combine local and global factors, causing recurrent and significant human and material losses worldwide. The presented research consists of a multi-scale flood risk assessment process based on data sources collected at distinct scales, expressing hazard, exposure and physical vulnerability of buildings. Detailed Census-derived parameters are essential in representing exposure a...

Assessment of the socio-economic impacts of extreme weather events on the coast...

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 the place where marine and terrestrial processes converge, making it highly vulnerable to the effects of climate change. However, the lack of information on the frequency of these extreme weather events and...

Multi-hazard susceptibility assessment for land use planning in the Lisbon Metr...

The Lisbon Metropolitan Area is a risk hotspot in Portugal due to excessive exposure to natural and environmental hazards. In this work, a multi-hazard susceptibility assessment is performed for the 118 parishes that constitute the study area, considering the spatial incidence of seven hazardous processes: earthquakes, tsunami, beach erosion and coastal flooding, coastal erosion and cliff retreat, landslides, f...

On the physical vulnerability of buildings exposed to landslide hazards in the ...

This study assesses the physical vulnerability of buildings (PVB) in the Lisbon Metropolitan Area (LMA) exposed to landslides triggered by both rainfall and earthquakes. Firstly, a statistical model (Information Value), validated with a ROC curve, was adopted to assess susceptibility to landslides caused by rainfall. Secondly, an Analytic Hierarchy Process was adopted to assess the susceptibility to landslides ...