Brief communication: Measuring and modelling the ice thickness of the Grigoriev ice cap (Kyrgyzstan) and comparison with global datasets

An accurate ice thickness distribution is crucial for correct projections of the future state of an ice mass. However, measuring the ice thickness with an in-situ system is time-consuming and not scalable. Therefore, models have been developed that estimate the ice thickness without direct measureme...

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Bibliographic Details
Main Authors: Van Tricht, Lander, Paice, Chloë Marie, Rybak, Oleg, Huybrechts, Philippe
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2023
Subjects:
Online Access:https://doi.org/10.5194/egusphere-2023-473
https://noa.gwlb.de/receive/cop_mods_00065981
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00064485/egusphere-2023-473.pdf
https://egusphere.copernicus.org/preprints/2023/egusphere-2023-473/egusphere-2023-473.pdf
Description
Summary:An accurate ice thickness distribution is crucial for correct projections of the future state of an ice mass. However, measuring the ice thickness with an in-situ system is time-consuming and not scalable. Therefore, models have been developed that estimate the ice thickness without direct measurements. In this study, we reconstruct the ice thickness of the Grigoriev ice cap, Kyrgyzstan, from in-situ observations and the yield stress method. We compare the results with data from 6 global ice thickness datasets composed without the use of our local measurements. The results highlight shortcomings of these generic datasets and demonstrate the importance of local observations for accurate representations of the ice thickness.