ICESat-2 Reservoir Applications: A case study from the largest man-made reservoir in India

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Authors

Surajit Ghosh , Atul Kaushik

Abstract

Monitoring inland water levels is crucial for understanding hydrological processes to climate change impact leading to policy implementation. Satellite altimetry has proved to be an excellent technique to precisely measure water levels of rivers, lakes, and other inland water bodies. The ATL13 product of ICESat-2 space-borne LiDAR is solely dedicated to inland water bodies. The water surface heights were derived from ICESat-2's strong beams, and performance was assessed with respect to reservoir gauge observations. Statistical measurements were used to understand the agreement (R2= 0.99, %RMSE=0.08) among the datasets. An R2 value of 0.99 was observed between ICESat-2 derived water level anomaly and the reservoir storage anomaly. This study provides a unique opportunity to utilize the ATL13 data product to study reservoir water level variation and estimate the reservoir's storage. The methodology can also be helpful to understand the reservoir storage variation in a data-sparse region.

DOI

https://doi.org/10.31223/X5DK9D

Subjects

Hydrology

Keywords

ICESat-2, ATL13, reservoir water level, reservoir storage capacity, ATL13, reservoir water level, reservoir storage capacity

Dates

Published: 2021-12-24 11:08

Last Updated: 2021-12-26 14:30

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License

CC BY Attribution 4.0 International

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