Supraglacial lake bathymetry automatically derived from ICESat-2 constraining lake depth estimates from multi-source satellite imagery

• Published in: The Cryosphere
• Main Authors: Datta, Rajashree Tri, Wouters, Bert
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2021
• Subjects: article; Verlagsveröffentlichung; glacier; Greenland; Jakobshavn; Kujalleq; Sermeq Kujalleq; The Cryosphere
• Online Access: https://doi.org/10.5194/tc-15-5115-2021; https://noa.gwlb.de/receive/cop_mods_00058801; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058424/tc-15-5115-2021.pdf; https://tc.copernicus.org/articles/15/5115/2021/tc-15-5115-2021.pdf

We introduce an algorithm (Watta) which automatically calculates supraglacial lake bathymetry and detects potential ice layers along tracks of the ICESat-2 (Ice, Cloud, and Land Elevation Satellite) laser altimeter. Watta uses photon heights estimated by the ICESat-2 ATL03 product and extracts supra...