Based on Sentinel-1 interferometric wide swath (IW) SAR images covering typical glaciers in the target area from January 2021 to December 2021, offset tracking technology was used to monitor and analyze the surface flow velocity of glaciers in the Svalbard archipelago. The 2021 Svalbard glacier surface average flow velocity data (glacier surface average velocity. tif), distance cumulative deformation data (time1_time2. real. tif), and azimuth cumulative deformation data (time1_time2. imag. tif) were obtained, with a spatial range of 10.000 ° -29.999 ° E and 76.000 ° -81.000 ° N, respectively.
| collect time | 2021/01/01 - 2021/12/31 |
|---|---|
| collect place | Svalbard Archipelago |
| data size | 62.4 GiB |
| data format | GeoTIFF |
| Coordinate system | WGS84 |
| Projection | GCS_WGS_1984 |
Derived from the Sentinel-1 SAR data of the European Space Agency.
Based on the orbital information, external terrain data, and SAR imaging geometric relationship model of the European Space Agency Sentinel-1 SAR data, the influence of complex terrain on the fitting residuals in the distance and azimuth directions was calculated. The calculated terrain influence was eliminated in the fitting residuals in the distance and azimuth directions containing glacier motion information, and accurate glacier surface motion distribution information was obtained.
The data quality is good.
| # | number | name | type |
| 1 | 2021YFE0116800 | National key R & D plan |
This work is licensed under a
Creative
Commons Attribution 4.0 International License.
| # | title | file size |
|---|---|---|
| 1 | _ncdc_meta_.json | 4.5 KiB |
| 2 | 典型冰川表面累积形变 | |
| 3 | 冰川形变速率 |
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