Published May 6, 2024 | Version v2
Dataset Open

Landslides of the 2023 summer event of São Sebastião, southeastern Brazil

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
2023-10-01
Manual viectorization of landslides