This dataset uses SRTM v41 segmented data, which is processed through image stitching, projection conversion, cropping, etc. to generate a 90 meter resolution digital elevation model (DEM) for the Qilian Mountains region.
collect time | 2000/01/01 - 2000/12/31 |
---|---|
collect place | Qilian Mountains region |
altitude | 1040.0m - 5993.0m |
data size | 51.3 MiB |
data format | Raster/GeoTIFF |
Coordinate system | WGS84 |
Projection | GCS_WGS_1984 |
The 90 meter resolution DEM data for the Qilian Mountains region comes from NASA's SRTM v41 3s data, which is currently distributed free of charge by USGS and can be downloaded for free from the USGS FTP site.
Using Python programs, format conversion, concatenation, cropping, and other processing of SRTM v41 3s segmented data were performed in the Qilian Mountains region to obtain 90 m resolution DEM data;
The vertical error of SRTM DEM data is less than 16 meters
# | number | name | type |
1 | Y719H71011 | Special service of Qilian mountain ecological environment quality assessment | other |
2 | 2021ZDKT0004 | other |
# | title | file size |
---|---|---|
1 | STRM_v41_3s_Qilianshan.rar | 49.6 MiB |
2 | STRM_v41_3s_Qilianshan_Guide_数据说明.docx | 1.6 MiB |
3 | _ncdc_meta_.json | 4.3 KiB |
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