Articles | Volume 16, issue 4
https://doi.org/10.5194/tc-16-1497-2022
https://doi.org/10.5194/tc-16-1497-2022
Research article
 | 
27 Apr 2022
Research article |  | 27 Apr 2022

Snow water equivalent change mapping from slope-correlated synthetic aperture radar interferometry (InSAR) phase variations

Jayson Eppler, Bernhard Rabus, and Peter Morse

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Latest update: 19 Jun 2024
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Short summary
We introduce a new method for mapping changes in the snow water equivalent (SWE) of dry snow based on differences between time-repeated synthetic aperture radar (SAR) images. It correlates phase differences with variations in the topographic slope which allows the method to work without any "reference" targets within the imaged area and without having to numerically unwrap the spatial phase maps. This overcomes the key challenges faced in using SAR interferometry for SWE change mapping.