TY  - Data
T1  - Glacier-level and gridded mass change in river sources in the eastern Tibetan Plateau region (ETPR) from the 1970s to 2000
A1  - LIU Shiyin
DO  - 10.11888/Cryos.tpdc.301236
PY  - 2025
DA  - 2025-11-27
PB  - National Cryosphere Desert Data Center
AB  - This dataset focuses on glacier material changes in the river source area of the Eastern Tibetan Plateau (ETPR) from 1970 to 2000, providing two resolutions of data: high-resolution glacier individual data (30 meters) and low resolution grid data (0.5 degrees). Among them, high-resolution data targets 13117 glaciers, including elevation changes, annual material balance, and related uncertainty information over 30 years, providing important references for the study of individual glaciers. To calculate glacier mass changes, the study will compare the digital elevation model (DEM) generated based on topographic maps (aerial photogrammetry technology) from 1970 to 2000 with data from the Space Shuttle Radar Topography Mission (SRTM) in 2000. To ensure data accuracy through registration, deviation correction, and quality control processes, and to validate elevation differences based on DEM using data from ICESat-2 and KH-9 satellites. The results show that the dataset has good quality (especially in low altitude areas) and high consistency with the KH-9 data; However, due to the difficulty of capturing high reflectivity snow surfaces clearly in steep terrain using aerial photographs, the uncertainty of data in high-altitude areas is relatively high.  This dataset covers 72% of glaciers in the ETPR area and has high integrity. It can be used for parameter calibration in multi-scale glacier mass balance simulations and for evaluating changes in glacier hydrological effects before and after 2000. It is an important data resource for glacier research in this region.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/bfc470fb-64a6-485b-8a15-e347e1e01817
ER  -