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Keywords = Recovery Ice Stream (RIS)

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6 pages, 2840 KB  
Proceeding Paper
Analysis of Subglacial Lake Activity in Recovery Ice Stream with ICESat-2 Laser Altimetry
by Yangyang Chen
Environ. Sci. Proc. 2024, 29(1), 19; https://doi.org/10.3390/ECRS2023-15830 - 15 Nov 2023
Viewed by 2508
Abstract
The latest laser altimetry technology employed by NASA’s Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) enables the capture of denser and more precise spatial details. Here, we utilize ICESat-2 data from September 2018 to July 2022 to replicate and analyze the dynamics of [...] Read more.
The latest laser altimetry technology employed by NASA’s Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) enables the capture of denser and more precise spatial details. Here, we utilize ICESat-2 data from September 2018 to July 2022 to replicate and analyze the dynamics of the recovery ice stream’s subglacial lake system. To investigate the pathways of subglacial water transfer and determine the outline of subglacial lakes, we employ the differential digital elevation model (DEM) method to depict the surface elevation changes of each subglacial lake at monthly intervals. Our findings indicate significant migration in the activity location of 4 lakes. Notably, Rec1, previously regarded as a single lake, performed as two distinct lakes during the study. Furthermore, we identify two large-scale lakes with subglacial water flux reaching 0.5 km3. Full article
(This article belongs to the Proceedings of ECRS 2023)
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