Toward long-term monitoring of regional permafrost thaw with satellite interferometric synthetic aperture radar
Taha Sadeghi Chorsi,
Franz J. Meyer,
Timothy H. Dixon
Abstract:Abstract. Active-layer thickness (ALT) is estimated for a study area in northern Alaska's continuous-permafrost zone using satellite data from Sentinel-1 (radar) and ICESat-2 (lidar) for the period 2017 to 2022. Synthetic aperture radar (SAR) interferograms were generated using the Short Baseline Subset (SBAS) approach. Displacement time series over the thaw season (June–September) are fit well with a linear model (root mean square error (RMSE) scatter is less than 7 mm) and show maximum seasonal subsidence of… Show more
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