| 描述 |
The data set integrated glacier inventory data and 668 Landsat TM/ETM+/OLI images, and adopted manual visual interpretation to extract glacial lake boundaries within a 10-km buffer from glacier terminals using ArcGIS and ENVI software, normalized difference water index maps, and Google Earth images. It was established that 27,205 and 30,121 glacial lakes in HMA, with sizes of 0.0054–6.46 km2, covered a combined area of 1806.47 ± 2.11and 2080.12 ± 2.28 km2 in 1990 and 2018, respectively.The current glacial lake inventory provided fundamental data for water resource evaluation, assessment of glacial lake outburst floods and gacier hydrology research in the mountain cryosphere region. Name of Data High_Asia_glacial_lake_1990.Shp High_Asia_glacial_lake_2018.shp Data description of attribute items GLAKE_ID: The coding of glacial Lake GL_Image: Information of source image GL_Type: The type of glacial Lake GL_SubR: The Sbu-region of glacial Lake in the HMA GL_Time: The acquisition date of the original Landsat image GL_Elev: The average elevation of glacial lake (m) GL_Area: The area of glacial lake (m2) GL_Peri: The Perimeter of glacial lake (m) GL_A_Error: The error of glacial lake area (m2) GL_Long: The longitude of center point of the glacial lakes (°) GL_Lati: The latitude of center point of the glacial lakes (°) |
