近二十年藏东南地区冰川表面高程变化数据（2000-2019）

1) 数据内容：藏东南地区近二十年的冰川表面高程变化数据，包括2000-2020年时间变化序列及2000和2019年间0.5°网格尺度的冰川表面高程变化数据。
2) 数据来源及加工方法：2000-2020年时间变化序列由联合卫星测高数据（ICESat、CryoSat-2、ICESat-2）、地形数据（2014年ASTER L1A数据生产的DEM）、卫星重力数据（GRACE及GLDAS）的冰川监测方法获得。网格尺度的冰川表面高程变化数据由ICESat-2数据与NASADEM计算得到。
3) 数据质量描述：本数据与无人机航拍结果、GPS观测结果及以往文献结果较为一致，且时间分辨率和空间分辨率有较大提升。
4) 数据应用成果及前景：本数据可用于率定冰川水文模型，也可与后续研究做对比。

1) Data Content: Glacier surface elevation change data of the southeastern Tibetan Plateau over the past 20 years, including the 2000-2020 temporal change series and the 0.5° grid-scale glacier surface elevation change data between 2000 and 2019.
2) Data Source and Processing Method: The 2000-2020 temporal change series was obtained via a glacier monitoring method integrating satellite altimetry datasets (ICESat, CryoSat-2, ICESat-2), topographic data (DEM derived from 2014 ASTER L1A data), and satellite gravity datasets (GRACE and GLDAS). The 0.5° grid-scale glacier surface elevation change data was calculated using ICESat-2 data and NASADEM.
3) Data Quality Description: This dataset exhibits good consistency with unmanned aerial vehicle (UAV) aerial survey results, GPS observation results and previously published literature findings, and has substantially improved temporal and spatial resolutions.
4) Data Application Outcomes and Prospects: This dataset can be used for calibrating glacial hydrological models, and can also be employed for comparison with subsequent research works.

搜集汇总

背景与挑战

背景概述

该数据集提供了藏东南地区2000-2019年的冰川表面高程变化数据，时间分辨率为年，空间分辨率为0.5º - 1º，数据来源包括多源卫星测高和地形数据，质量可靠，适用于冰川水文模型率定和研究对比。