This dataset is an eight-day synthetic snow albedo data for the land area of China, covering the time range from January 2000 to March 2020, in raster data in HDF format. The geospatial range is 72°-142°E, 16°-56°N, and the equal latitude/longitude projection is used with a spatial resolution of 0.01°.
The dataset is based on MODIS albedo product MOD09GA, snow accumulation product MOD10A1/MYD10A1 and Global Digital Elevation Model SRTM data, and the snow accumulation albedo inversion model is developed on the basis of the ART model and produced interactively with GEE and the local end, and finally synthesized to achieve the purpose of de-cloud after eight days.
The data elements include black sky albedo, white sky albedo, solar zenith angle, inversion identifier, cloud identifier, and so on.
MOD09GA is a reflectance data product (L2G) released by NASA's LP DAAC, which can be directly recalled in the cloud.
MOD10A1/MYD10A1 is a snow cover data product released by the U.S. Snow and Ice Data Center (NSIDC); SRTM is a global digital elevation data released by NASA/CGIAR.
Model used for inversion calculations: snowpack albedo inversion model developed on the basis of the ART model.
Software tools: cloud (GEE) and local (Python) interactive production, Jupyter Notebook for 8-day synthetic de-clouds, MATLAB for data format conversion, ArcPy for thumbnail generation.
Methods for error control, processing: adding inversion case identification bands to each product.
The data quality is good.
This work is licensed under a
Creative
Commons Attribution 4.0 International License.
CSTR:11738.11.ncdc.I-SNOW.2020.8
10.12072/ncdc.I-SNOW.db0003.2020