Chamoli Disaster Post-event 2-m DEM Composite (February 10-11, 2021) and Difference Map, Version 1
Data set id:
HMA2_CPOST
DOI: 10.5281/zenodo.4558692
NON-NSIDC DATA PRODUCT

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Overview

This data set contains 2-m resolution DEM composites and a DEM difference map over the Chamoli disaster area in Uttarakhand, India, where on 7 February 2021 a glacier burst led to a massive flood. These post-event DEMs were constructed from monoscopic Maxar/DigitalGlobe WorldView-2, WorldView-3, and GeoEye-1 images acquired on 10 February 2021 and 11 February 2021, and one DEM was generated from Pléiades-HR1B in-track stereo images acquired on 10 February 2021. The DEM difference map was created from the September 2015 weighted-mean DEM composite and the 10-11 February 2021 weighted-mean DEM composite. The September 2015 pre-event DEM is available as a separate data set (https://nsidc.org/data/HMA2_CPRE).
Parameter(s):
DIGITAL ELEVATION/TERRAIN MODEL (DEM)
Platform(s):
GEOEYE-1
Pleiades-1B
WORLDVIEW-2
WORLDVIEW-3
Sensor(s):
CAMERA
Data Format(s):
PNG
GeoTIFF
Temporal Coverage:
  • 10 February 2021 to 11 February 2021
Temporal Resolution:
Not Specified
Spatial Resolution:
  • 2 m
  • 2 m
Spatial Reference System(s):
  • WGS 84 / UTM zone 44N
    EPSG:32644
Spatial Coverage:
  • N:
    30.578
    S:
    30.347
    E:
    79.8
    W:
    79.484
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.