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GIS mapping, topography, and numerical modelling data describing pre- and post-event landscapes affected by the 7th February 2021 Chamoli disaster, India

This data collection contains GIS shapefiles, digital elevation models (DEM), DEMs of difference (DoD), and numerical modelling files which were generated in the course of the NERC Urgency project "Rapid adjustment to catchment sediment yield following a catastrophic rock-ice avalanche and debris flow, Uttarakhand, India" (NE/W002930/1). GIS shapefiles comprise building and riparian infrastructure footprints, mapped from high-resolution pre- and post-event satellite data. The DEM data products are mostly derived from stereo Pléaides satellite data, captured in the year following the disaster, and the DoDs represent vertical landscape change within this period. The numerical modelling files allow users to drive CAESAR-Lisflood models which simulate the hydro-geomorphological response of the upper 30 km of the flood-affected catchment.
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View numbers valid from 01 June 2023 (information prior to this was not collected)