西藏典型冰川与背景积雪信息集（2000-2021）

西藏典型冰川与背景积雪信息集由杰马央宗冰川、冲巴雍曲流域冰川、什磨冰川、什俄冰川及曾冰川五个典型冰川组成。数据集综合使用风云气象卫星、LANDSAT、MODIS 等卫星遥感资料，开展了基于多源卫星资料的青藏高原典型冰川群与背景积雪信息提取方法研发，采用归一化差分积雪指数和可见光-红外传感器分类树阈值判识法等遥感手段形成的数据，构建了2000-2021年喜马拉雅山脉典型冰川与背景积雪信息集，开展了喜马拉雅山脉典型冰川长序列面积变化分析。

The Typical Glaciers and Background Snow Cover Dataset in Tibet consists of five representative glaciers: Jiemayangzong Glacier, Chongbayongqu Basin Glacier, Shenmo Glacier, Shen'e Glacier, and Zeng Glacier. This dataset was constructed by comprehensively utilizing remote sensing data from multiple satellites including Fengyun (FY) meteorological satellites, LANDSAT, and MODIS, developing methods for extracting information of typical glacier groups and background snow cover over the Qinghai-Tibet Plateau based on multi-source satellite data, applying remote sensing techniques such as the Normalized Difference Snow Index (NDSI) and visible-infrared sensor classification tree threshold identification method to generate required data, and finally establishing the 2000–2021 dataset of typical glaciers and background snow cover in the Himalayas. Long-term sequential area change analysis of typical glaciers in the Himalayas was also conducted using this dataset.

搜集汇总

背景与挑战

背景概述

该数据集是一个关于西藏地区典型冰川与背景积雪的遥感信息集，涵盖2000年至2021年，包含杰马央宗、冲巴雍曲流域等五个冰川的多源卫星数据。数据集采用归一化差分积雪指数等方法，以shp、tif等格式存储，主要用于分析喜马拉雅山脉典型冰川的长序列面积变化，支持冰冻圈研究。