%0 Dataset
%T Inventory of Glacial Lakes in the Central Himalayas Derived from Multi-source Satellite Imagery (1990-2022)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U https://www.ncdc.ac.cn/portal/metadata/c1e47559-a138-4c18-b9a7-c2bcccefa4c0
%W NCDC
%R 10.12072/ncdc.db7810.2026
%A Cheng Xiaoqiang
%A Shangguan donghui
%A Li Wangping
%A Zhou Zhaoye
%A Yang Chengsheng
%K Ice Lake;Enhanced Normalized Difference Water Index;Otsu Dynamic Threshold Method
%X This dataset contains six periods of ice lake catalog data in the central Himalayan region in 1990, 2000, 2010, 2015, 2020, and 2022. The storage format is ESRI Shapefile, which can be used to characterize the spatio-temporal evolution characteristics of ice lakes in the study area. The ice lake boundary in 1990, 2000, 2010, 2015, and 2020 is based on Landsat remote sensing images, relying on the Google Earth Engine (GEE) platform, and automatically extracted using the Improved Normalized Difference Water Index (ENDWI) coupled with the Otsu dynamic threshold method; the ice lake data in 2022 is extracted and generated based on Sentinel-2 images. Data projection uses Albers equal area projection (Asia_North_Albers_Equal_Area_Conic, parameters Central_Meridian: 95.000000;Standard_Parallel_1: 15.00000000;Standard_Parallel_2: 65.00000000;Latitude_Of_Origin: 30.00000000)。This catalog refers to the RGI Glacier Catalog. In 1990, 2000, 2010, 2010, and 2015/2020, it is divided into three types: ice lakes, glacier contact lakes, and non-glacier contact lakes; in 2022, ice lakes will be divided into four types: ice lakes, glacier contact lakes, non-glacier contact lakes, and non-glacier supply lakes. The extraction results of all time phases are subjected to manual visual interpretation and vector editing to ensure data accuracy. This multi-time series glacial lake catalog can provide basic geographical data support for regional glacier change monitoring, glacial lake burst flood (GLOF) disaster risk assessment, and cryosphere related research.