The Cryosphere
The Cryosphere
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Articles | Volume 16, issue 6
Articles | Volume 16, issue 6
https://doi.org/10.5194/tc-16-2629-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-16-2629-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 6
Research article
 | 
01 Jul 2022
Research article |  | 01 Jul 2022

Empirical correction of systematic orthorectification error in Sentinel-2 velocity fields for Greenlandic outlet glaciers

Thomas R. Chudley, Ian M. Howat, Bidhyananda Yadav, and Myoung-Jong Noh

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Short summary
Sentinel-2 images are subject to distortion due to orthorectification error, which makes it difficult to extract reliable glacier velocity fields from images from different orbits. Here, we use a complete record of velocity fields at four Greenlandic outlet glaciers to empirically estimate the systematic error, allowing us to correct cross-track glacier velocity fields to a comparable accuracy to other medium-resolution satellite datasets.
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