2.1.1 Snow data
The snowpack data utilized in this study is derived from the MODIS day-by-day cloud-free snow cover dataset (2000-2022) specifically for the Asian water tower region. This dataset was obtained from the Science Data Bank(https://www.scidb.cn) and is based on the MODIS Global Surface Launch Product MO/YD09GA. The snow cover dataset for the Asian Water Towers region during the period of 2000-2022 was prepared using the de-cloud algorithm. The data is provided in tif format with a resolution of 0.005°.