World Settlement Footprint (WSF) 2019 - Sentinel-1/2 - Global

The World Settlement Footprint (WSF) 2019 is a 10m resolution binary mask outlining the extent of human settlements globally derived by means of 2019 multitemporal Sentinel-1 (S1) and Sentinel-2 (S2) imagery. Based on the hypothesis that settlements generally show a more stable behavior with respect to most land-cover classes, temporal statistics are calculated for both S1- and S2-based indices. In particular, a comprehensive analysis has been performed by exploiting a number of reference building outlines to identify the most suitable set of temporal features (ultimately including 6 from S1 and 25 from S2). Training points for the settlement and non-settlement class are then generated by thresholding specific features, which varies depending on the 30 climate types of the well-established Köppen Geiger scheme. Next, binary classification based on Random Forest is applied and, finally, a dedicated post-processing is performed where ancillary datasets are employed to further reduce omission and commission errors. Here, the whole classification process has been entirely carried out within the Google Earth Engine platform. To assess the high accuracy and reliability of the WSF2019, two independent crowd-sourcing-based validation exercises have been carried out with the support of Google and Mapswipe, respectively, where overall 1M reference labels have been collected based photointerpretation of very high-resolution optical imagery.
Suggested Data Citation
Data: WSF data ©DLR [year of acquisition] All rights reserved. https://doi.org/10.15489/twg5xsnquw84
Coverage
		Yellow dots or areas indicate coverage range.
Geographic Boundaries
North:	78.00°
West:	180.00°
East:	180.00°
South:	-60.00°
Time Period
Start date:	2019-01-01
End date:	2019-12-31
More Information
Keywords:	DLR, EOC, global, urbanization, land, settlement extent, Sentinel-1, Sentinel-2, opendata
Contact:	geoservice@dlr.de
Access / Use Restriction:	License
Data Use Guidelines	Creative Commons BY 4.0
Links
Mission / Project Information
World Settlement Footprint - DLR News	https://www.dlr.de/content/en/articles/news/2021/04/20211111_the-view-from-space-how-cities-are-growing.html World Settlement Footprint - DLR News
DOI:	https://doi.org/10.15489/twg5xsnquw84 Digital Object Identifier
Product Search / Ordering
Product Catalogue (STAC): World Settlement Footprint (WSF) 2019 - Sentinel-1/2 - Global	https://geoservice.dlr.de/eoc/ogc/stac/v1/collections/WSF_2019 World Settlement Footprint (WSF) 2019
Downloading Data
GUI-based download (World Settlement Footprint (WSF) 2019)	https://download.geoservice.dlr.de/WSF2019/ GUI-based download
Data Visualization Service
EOC Geoservice Map Context (eoc:wsf2019)	https://geoservice.dlr.de/web/maps/eoc:wsf2019 EOC Geoservice Map Context
WMS access: World Settlement Footprint (WSF) 2019	https://geoservice.dlr.de/eoc/imagery/wms? WSF_2019