Figure 1

The meteorological stations and their locations in the THRHR ArcGIS 10.5 software20 was downloaded from https://support.esri.com/zh-cn/Products/Developers/arcgis-engine/arcgis-engine/10-5-1# overview. It includes the Wudaoliang Town, Tuotuohe Town, Zaduo County, Qumalai County, Nangqian County, Qingshuihe, Yushu County, Maduo County, Xinghai County, Maqin County, Dari County, Jiuzhi County and Banma County.