In this data set, we use DEM of topographic map, SRTM (2000) and DEM extracted from remote sensing image to obtain the surface elevation change of glacier in the center of glaciation by calculating the difference between them. It is only aimed at the glacier surface elevation change in MUZTAG area from 1976 to 2014, so it is not necessary to supplement and improve, and fully open sharing is adopted. The dataset consists of elevationchange 1976-2000 and elevationchange 2000-2014, with a total of two bands, and the field measurement unit is meter (m). The data set is mainly extracted from remote sensing images, which only represents the glacier surface elevation change at the time of remote sensing image acquisition, and the time is 1976-2000 and 2000-2014.
|collect time||1976/01/01 - 2014/12/31|
|collect place||Muztagata Mountains|
|data size||9.6 MB|
This data set is mainly interpreted data. The main data sources are DEM of topographic map, SRTM (2000) and DEM extracted from remote sensing image.
Based on DEM of topographic map, SRTM (2000) and DEM extracted from remote sensing image, the elevation change of glacier surface at the center of glaciation was obtained by difference calculation.
After checking the accuracy of DEM in different periods, the plane and elevation are corrected by using the cosine relationship between slope aspect and elevation difference. Then, the relationship between the maximum curvature and elevation difference is used to reduce the error caused by different resolutions. The DEM registration and relative accuracy evaluation of the two periods are carried out, and the glacier elevation changes in different periods are obtained
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