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- W4386946102 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> Snow Water Equivalent (SWE) is identified as the key element of the snowpack that impacts rivers' streamflow and water cycle. Both active and~passive microwave remote sensing methods have been used to retrieve SWE, but there does not currently exist a SWE product that provides useful estimates in mountainous terrain. Active sensors provide higher-resolution observations, but the optimal radar frequencies and temporal repeat intervals have not been available until recently. Interferometric Synthetic Aperture Radar (InSAR) has been shown to have the potential to estimate SWE change. In this study, we apply this technique to a long time series of Sentinel-1 data from the 2020–2021 winter. The retrievals show statistically significant correlations both temporally and spatially with independent measurements of snow depth and SWE. The Pearson correlation and RSME between retrieved SWE change observations and in situ stations measurements are 0.82, and 0.76 cm, respectively. The total retrieved SWE in the entire 2020–2021 time series shows SWE error less than 2 cm for the 16 in situ stations in the scene. Additionally, the retrieved SWE using Sentinel-1 data is highly correlated with LIDAR snow depth data with correlation of more than 0.5. Low temporal coherence is the main reason for degrading the performance of SWE retrieval using InSAR data. Low temporal coherence also causes the degradation of phase unwrapping algorithms." @default.
- W4386946102 created "2023-09-23" @default.
- W4386946102 creator A5037535121 @default.
- W4386946102 date "2023-09-23" @default.
- W4386946102 modified "2023-10-03" @default.
- W4386946102 title "Reply on CC2" @default.
- W4386946102 doi "https://doi.org/10.5194/tc-2023-95-ac3" @default.
- W4386946102 hasPublicationYear "2023" @default.
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