中国积雪反照率逐日产品（2000-2020年）

本数据集为中国陆域逐日积雪反照率数据，时间范围覆盖2000年1月至2020年3月，为HDF格式的栅格数据。地理空间范围为72°-142°E，16°-56°N，采用等经纬度投影，空间分辨率0.01°。数据集基于MODIS反射率产品MOD09GA，积雪产品MOD10A1/MYD10A1和全球数字高程模型SRTM数据，在ART模型基础上发展了积雪反照率反演模型，并利用GEE和本地端交互生产而来。数据要素包含黑空反照率，白空反照率，太阳天顶角，反演标识，云标识等。本数据集采用完全开放共享。

This dataset consists of daily snow albedo data over the terrestrial region of China, covering the period from January 2000 to March 2020. The data are stored as raster files in HDF format. Its spatial extent ranges from 72°E to 142°E and 16°N to 56°N, adopting an equidistant geographic projection with a spatial resolution of 0.01°. The dataset was developed using MODIS reflectance product MOD09GA, snow cover products MOD10A1/MYD10A1, and the Shuttle Radar Topography Mission (SRTM) global digital elevation model. A snow albedo inversion model was constructed based on the ART model, and the dataset was produced through interactive processing between Google Earth Engine (GEE) and local workstations. The dataset includes the following data elements: black-sky albedo, white-sky albedo, solar zenith angle, inversion flag, cloud flag, and other relevant parameters. This dataset is fully open and freely accessible.

搜集汇总

背景与挑战

背景概述

该数据集为中国陆域逐日积雪反照率数据，覆盖2000年至2020年，空间分辨率为0.01°，基于MODIS和SRTM等多源遥感数据通过ART模型反演生成。数据包含黑空反照率、白空反照率等关键要素，采用HDF格式，完全开放共享，适用于积雪变化和气候研究。