中国科学数据（中英文网络版）2023，Vol.8Issue(4)：376-386,11.DOI:10.11922/11-6035.ncdc.2023.0009.zh
2000-2020年喀喇昆仑山洪扎河流域冰川高程变化数据集
A dataset of glacier height changes in Hunza Basin during 2000-2020
摘要
Abstract
Under the influence of climate warming,glaciers in High Mountain Asia(HMA)have undergone significant recession in recent decades.However,stable or even positive glacier mass budgets have been found in the Karakoram Mountains in the past decades,which is termed as"Karakoram anomaly".The Hunza Basin,located in the western Karakoram,is a region with concentrated glacier development along the Sino-Pakistan Economic Corridor.The glacier mass balance in Hunza Basin plays an important role in water resource utilization and infrastructure construction.In this study,we used the SRTM DEM(2000)and ZY3-02 stereo images(2020)to obtain the glacier height changes in the Hunza Basin by employing the method of Geodetic(GeoTIFF format with a resolution of 30 m).This study covers an area of around 7600 km2,within the spatial extent of 36°N-37°N,74°E-76°E.The statistical analysis of the residual movement in the non-glacial region indicates an overall accuracy of about 1.1 m.The findings suggest that glaciers experienced a moderate thinning during the early 21st century,with significant spatial variations.Factors such as debris cover,crevasses,supraglacial lake,ice cliff and glacier surge have distinct influences on glacier height changes.This dataset can be used as basic data for the research on glacier mass balance in the Karakoram,as well as water resources utilization,glacier disaster warning and climate change in the Sino-Pakistan Economic Corridor.关键词
洪扎河流域/大地测量法/冰川高程变化/资三立体像对/21世纪初Key words
Hunza Basin/geodetic/glacier height changes/ZY3-02 stereo images/the early 21st century引用本文复制引用
吴坤鹏,刘时银,朱钰..2000-2020年喀喇昆仑山洪扎河流域冰川高程变化数据集[J].中国科学数据（中英文网络版）,2023,8(4):376-386,11.基金项目
可持续发展大数据国际研究中心主任青年基金(CBAS2022DF20) （CBAS2022DF20）
国家重点研发计划"冰冻圈大数据挖掘分析关键技术及应用"(2022YFF0711702-03) （2022YFF0711702-03）
国家自然科学基金项目(42211540715) （42211540715）
国家冰川冻土沙漠科学数据中心开放基金(2020D04).The Director Fund of the International Research Center of Big Data for Sustainable Development Goals(CBAS2022DF20) （2020D04）
the National Key R&D Program of China(2022YFF0711702-03) （2022YFF0711702-03）
the National Natural Science Foundation of China(42211540715) （42211540715）
the Project of the National Cryosphere Desert Data Center(2020D04). （2020D04）
