TY  - Data
T1  - The First Chinese Glacier Inventory (Version 2)
A1  - liu shi yin
A1  - GUO Wanqin
A1  - XU Junli
A1  - YAO Xiaojun
A1  - WU Lizong
A1  - Shangguan donghui
A1  - Wei junfeng
A1  - LIU Qiao
A1  - Jiang zongli
A1  - Wang Xin
A1  - Bao weijia
A1  - li jing
A1  - yu peng chun
DO  - 10.12072/ncdc.db7697.2026
PY  - 2026
DA  - 2026-08-05
PB  - National Cryosphere Desert Data Center
AB  - The Second Edition of the First Chinese Glacier Inventory (FCGI v2) is a high-resolution digitized cryospheric dataset derived from historical topographic maps and aerial photography acquired between the 1950s and 1980s. The dataset was generated through polynomial geometric correction of scanned paper maps, manual vectorization of glacier outlines, DEM-assisted attribute extraction, and GIS-based recalculation of glaciological parameters. FCGI v2 integrates key spatial layers—including glacier boundaries, drainage sub-basins, lakes, rivers, and transportation networks—with detailed physical attributes such as glacier area, length, elevation metrics, snowline altitude, and ice volume. Spanning 73.2°E–135.5°E and 17.8°N–53.9°N at mapping scales primarily between 1:50,000 and 1:100,000, FCGI v2 adopts the standardized Chinese glacier basin coding system. It serves as an essential historical baseline for reconstructing legacy glacier distributions and evaluating long-term cryospheric responses to climate forcing.Data SourcesDigitization and refinement of the First China Glacier Inventory relied on four primary data sources:Historical Topographic Maps: A total of 1,118 scanned topographic map sheets provided the primary foundation for delineating historical glacier outlines and extracting terrain attributes. This source comprised 546 sheets at a 1:50,000 scale (512 derived from aerial photogrammetry, 15 from terrestrial photogrammetry, and 19 from plane-table surveying or legacy cartographic records) and 572 sheets at a 1:100,000 scale (558 from aerial photogrammetry and 14 from plane-table surveying or other sources).Landsat MSS Imagery: Seven Landsat Multispectral Scanner (MSS) scenes acquired around 1975 served as auxiliary reference data to resolve boundary ambiguities and ensure spatial consistency during historical glacier interpretation.Digital Elevation Models (DEMs): A total of 1,500 DEM tiles covering glacierized basins across western China were compiled, incl
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/593aae99-7dcd-4f1c-9896-40a5c9c43877
ER  -