Landslides of the 2023 summer event of São Sebastião, southeastern Brazil
Creators
Description
In February 2023, anomalously heavy rainfall caused widespread landslides in the coastal city of São Sebastião (Southeastern Brazil). This report describes the first version of a landslide inventory dataset for this event. The inventory is based primarily on the analysis of aerial images with 10 cm spatial resolution acquired immediately after the event, as well as archive images from Google Earth and PlanetScope. Delimitation of the landslides relied on a comparison of the images along with the area's Digital Surface Model (DSM) and hydrography. The GIS vector dataset (shapefile and geopackage) contains 989 points representing the landslide's crowns, 1,116 polygons indicating the affected areas of landslides and 1 polygon of a debris flow.
Files
shapefiles_v2.zip
Files
(7.1 MB)
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md5:564e73edfface8ec8ed5eb9c2015c5ab
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Additional details
Funding
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- High-Resolution Remote Sensing, Deep Learning and Geomorphometry in Analyses of Mass Movements and Geological Risk 2019/26568-0
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Mapping and classification of watersheds affected by hydro geomorphological processes in the Serra do Mar Paulista: foundation for planning and mitigation actions 2022/04233-9
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Multi-Scale Geomorphometric Analysis of Mass Movements in São Sebastião (SP, Brazil) 2023/11197-1
Dates
- Collected
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2023-10-01Manual viectorization of landslides