1970s以来高亚洲跃动冰川编目

本数据为高亚洲跃动冰川编目产品。基于1970s-2010s之间的冰川表面高程变化、1986-2021年期间时序光学影像特征对跃动冰川进行识别。原始数据包括KH-9 DEM、NASADEM、HMA8m DEM、 Copernicus30m DEM历史高程数据，GAMDAM2冰川边界数据，以及Landsat-5/7/8光学影像数据。冰川表面高程变化通过DEM差分技术获取。本产品共记录了高亚洲范围内的890条跃动冰川以及336条疑似跃动冰川。产品以矢量数据库形式存储，包含跃动型冰川的矢量边界、冰川几何参数、冰川ID以及跃动可能性指标等属性。产品共1期。该数据集可用于冰川跃动灾害调查、冰川变化时空分析等研究。

This dataset is a glacier surging inventory product for High Mountain Asia (HMA). Glacier surging events were identified based on glacier surface elevation changes between the 1970s and 2010s, as well as temporal optical image characteristics from 1986 to 2021. The original datasets include historical elevation data from KH-9 DEM, NASADEM, HMA8m DEM, and Copernicus 30m DEM, the GAMDAM2 glacier boundary dataset, and Landsat-5/7/8 optical imagery data. Glacier surface elevation changes were derived via DEM differencing techniques. A total of 890 confirmed surging glaciers and 336 suspected surging glaciers within High Mountain Asia are documented in this product. This product is stored in a vector database, containing attributes such as vector boundaries of surging glaciers, glacier geometric parameters, glacier IDs, and surging probability indicators. This product includes only one version. This dataset can be used for research including glacier surging disaster investigation and spatiotemporal analysis of glacier changes.

搜集汇总

背景与挑战

背景概述

该数据集为高亚洲跃动冰川编目产品，基于1970s-2020年的多源高程和光学影像数据，记录了890条跃动冰川和336条疑似跃动冰川，以矢量数据库形式存储，适用于冰川灾害调查和变化分析。