青藏高原冰川表面热浪时间序列及其趋势（2001-2020）

数据包括两个主文件，一是冰川表面自动气象站获取的气温和MODIS获取的近地表温度精度对比；二是基于MODIS LST，参考Hoday et al. (2016) 关于热浪定义，计算的2001-2020青藏高原冰川表面季节和年时间序列热浪。本数据集仅包含了MODIS纯像元覆盖的冰川。另外，基于线性模型，计算了每个像元热浪强度和持续时间的线性趋势及其显著性和置信区间。每个文件都包括了对应像元的地理坐标。参考坐标系统为Albers等面积投影，中央经线105°，标准纬线分别为25°和47°。

The dataset contains two main files. The first is an accuracy comparison between air temperature measured by automatic weather stations on glacier surfaces and near-surface temperature retrieved from MODIS. The second is the seasonal and annual time-series heatwaves on the Tibetan Plateau glaciers from 2001 to 2020, which were calculated based on MODIS LST and adopting the heatwave definition from Hoday et al. (2016). This dataset only includes glaciers covered by pure MODIS pixels. In addition, linear trends of heatwave intensity and duration for each pixel, together with their significance and confidence intervals, were calculated using a linear model. Each file includes the geographic coordinates of the corresponding pixels. The reference coordinate system is the Albers equal-area projection, with a central meridian of 105° and standard parallels of 25° and 47° respectively.

搜集汇总

背景与挑战

背景概述

该数据集包含青藏高原冰川表面2001-2020年的热浪时间序列及其趋势数据，主要基于MODIS LST计算，并包括热浪强度和持续时间的线性趋势及其显著性和置信区间。数据覆盖MODIS纯像元覆盖的冰川，采用Albers等面积投影，中央经线105°，标准纬线分别为25°和47°。