This dataset contains the variation data of glacier meltwater in the Aksu Basin of the Tomur Peak area from 1959 to 2017. The time resolution is monthly, and the spatial resolution is based on the glacier vector map and 90m × 90m digital elevation model (SRTDMEM) in the basin. The glaciers in the Aksu Basin are divided into several elevation zones at 100m elevation intervals, and the glacier meltwater in each elevation zone of the basin is calculated. The total amount of glacier meltwater is obtained through area weighting. This data can provide support for regional water resource management.
Based on the meteorological station data (daily precipitation and temperature) provided by the National Climate Data Center, combined with the 90m × 90m digital elevation model (SRTDMEM) and the second glacier cataloging vector data, the degree day factor model is used for simulation.
Based on meteorological station data (daily precipitation and temperature) provided by the National Climate Data Center, combined with the 90 m × 90 m digital elevation model (SRTM DEM) and the second glacier cataloging vector data, the historical evolution characteristics of glacier meltwater and its components in the Aksu Basin of the Tomur Peak area from 1959 to 2027 were reconstructed using the degree day factor model, including rainfall runoff, snowmelt runoff, and meltwater runoff from the glacier area. Firstly, divide the glaciers in the watershed into different height zones at intervals of 100 meters; Secondly, based on data from meteorological stations in and around the Yangtze River and Yellow River basins, monthly temperature and precipitation data at the end of glaciers were obtained through spatial interpolation. Combined with temperature decline rate and precipitation gradient, monthly temperature and precipitation within each elevation zone were calculated. The degree day model was used to output the accumulation, melting, material balance, and meltwater of glaciers in each elevation zone. Finally, the total amount and components of glacier meltwater in the basin (meltwater runoff, rainfall runoff, and snowmelt runoff) were obtained by weighting the meltwater runoff and area of each elevation zone.
The simulation results of the degree day model in this study are reliable and can be used to simulate and evaluate the monthly, seasonal, annual, and even long-term glacier meltwater runoff in the Aksu Basin of the Tomur Peak area.
| # | number | name | type |
| 1 | 41971094 | National Natural Science Foundation of China | |
| 2 | 2023NCDC0010 | NCDC Open Fund Project |
This work is licensed under
CC BY 4.0 (Creative Commons Attribution 4.0 International License).
CSTR:11738.11.NCDC.NIEER.DB7059.2026
10.12072/ncdc.nieer.db7059.2026
