Please use this identifier to cite or link to this item:

Title: Assessing exposure changes to landsliding in Lisbon Metropolitan Area
Authors: Melo, Raquel
Zêzere, José L.
Oliveira, Sérgio C.
Garcia, Ricardo A.C.
Oliveira, Sandra
Issue Date: 2022
Publisher: 10th International Conference on Geomorphology
Citation: Melo, R., Zêzere, J. L., Oliveira, S. C., Garcia, R. A. C., and Oliveira, S.: Assessing exposure changes to landsliding in Lisbon Metropolitan Area, 10th International Conference on Geomorphology, Coimbra, Portugal, 12–16 Sep 2022, ICG2022-625,, 2022.
Abstract: he Lisbon Metropolitan Area (LMA) is a Portuguese administrative region that encompasses 18 municipalities and is characterized by a high risk of landsliding as a consequence of the high susceptibility and exposure of people and assets. Therefore, this work aimed to assess the evolution of exposure levels to landsliding in each municipality of LMA, based on three timesteps (1995, 2011 and 2018), through the following summarized steps: 1) Landslide susceptibility modelling for LMA using an inventory that contains 1268 landslides, mostly rotational and translational slides; 2) Assessment of the relationship between the number of existing buildings and the urban area represented in the official land use map in 2011; 3) Assessment of the population exposed to landslides in 2011 (using Census data) within and outside the urban areas, based on the dasymetric distribution approach; 4) Backward and forward projection of population exposure to landsliding in the years of 1995 and 2018, for which official land use maps are available. Projections are based on relations found in 2) and 3). Overall, the results show that population exposure to landsliding has increased over time in LMA, but differently depending on the municipality considered. The relations found allow to estimate future population and assets exposure based on scenarios of urban expansion and population growth.
Type: lecture
Appears in Collections:GEO - Comunicações - Em Congressos Científicos Internacionais

Files in This Item:

File Description SizeFormat
ICG2022-625_Melo_etal.pdf101.11 kBAdobe PDFView/Open
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Dspace Dspace
DSpace Software, version 1.6.2 Copyright © 2002-2008 MIT and Hewlett-Packard - Feedback
UEvora B-On Curriculum DeGois