全球山地冰川500m分辨率反照率数据产品（2001-2020）

该数据集提供了全球山地冰川（环北极圈、高亚洲、阿拉斯加和南安第斯区域）2001-2020年的冰川反照率产品，该数据集主要在MODIS反照率产品基础上生产获得。首先提取无云条件下的反照率数据，然后采用移动平滑方式及三次样条算法对空缺数据进行填补，从而获得时空连续产品，最后根据RGI6.0提供的冰川边界进行掩膜。其中高亚洲区域2017-2020年山地冰川反照率产品融合Sentinel-3数据生产获得。

This dataset provides glacier albedo products for global mountain glaciers covering the Arctic Circum-polar region, High Asia, Alaska, and the southern Andes, spanning the period from 2001 to 2020. This dataset is primarily generated based on MODIS albedo products. The production workflow starts with extracting cloud-free albedo data, followed by filling in missing data using moving smoothing methods and cubic spline algorithms to obtain spatio-temporally continuous products, and ends with performing masking based on the glacier boundaries provided by RGI 6.0. Specifically, the mountain glacier albedo products for the High Asia region from 2017 to 2020 are produced by fusing Sentinel-3 data.

搜集汇总

背景与挑战

背景概述

该数据集为全球山地冰川2001-2020年的500米分辨率反照率产品，覆盖高亚洲、环北极圈、阿拉斯加和南安第斯区域，基于MODIS和Sentinel-3数据生产，经过严格的质量控制。