The GSnow-CHINA Version 1.0 data set is a long-term snow depth data set developed using observations from the two GNSS networks constructed by the China Meteorological Administration (CMA) and the China Earthquake Administration (CEA). We proposed a comprehensive framework using raw data of the complex GNSS station networks to automatically retrieve snow depth and control its quality. The data set includes snow depth of 24-hour, 12-hour, and 2-hour temporal resolutions if possible, for 80 sites from 2013 ~ 2022 over northern China (25° ~ 55° N, 70° ~ 140° E). The spatial footprint of the data set (i.e., ~1000m2) is distinguished from the current point-scale in-situ data or coarse-gridded data, which can be used as an independent data source for validation purposes. The data set is also useful for regional climate research and other meteorological and hydrological applications. The algorithm and the data files will be maintained and updated as more years of data become available in the future.

File naming and required software

The snow depth data is stored in CSV format. The name of the file is "SSSS_YYYY_HHh.txt", where SSSS represnts the site name, YYYY represents the year, and HH represents the temporal resolution. For example, hltl_2019_24h.csv represents the 24-hour snow depth file for site hltl in the year 2019.

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Cite as:

Wan, W., Zhang, J., Dai, L., Liang, H., Liu, B., Guo, Z., Hu, H., Yang, T., Zhao, L. (2021). A GNSS-based snow depth data set over northern China (GSnow-CHINA v1.0, 12h/24h, 2013-2022). A Big Earth Data Platform for Three Poles, DOI: 10.11888/Cryos.tpdc.271839. CSTR: 18406.11.Cryos.tpdc.271839. (Download the reference： RIS | Bibtex )

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License： This work is licensed under an Attribution 4.0 International (CC BY 4.0)