This dataset is a 10-year daily snow depth data in the Northern Hemisphere from 2001 to 2010, covering a range of 0-86°N and 180°W-180°E. This dataset combines the snow cover process model and the snow cover microwave radiation transmission model, absorbs ground observation station data to extract snow depth, and introduces a forest coverage factor to reduce the impact of forests on snow depth retrieval. The ensemble Kalman filter method is used to integrate satellite observed microwave brightness temperatures and simulated brightness temperatures to optimize snow cover parameters; in forest areas, forest coverage is used to reduce the impact of forests, and a Northern Hemisphere snow depth data set is obtained.
| collect time | 2001/01/01 - 2010/12/31 |
|---|---|
| collect place | Northern Hemisphere |
| data size | 365.5 MiB |
| data format | *.txt |
| Data time resolution | day |
| Projection | latitude and longitude |
The raw data used in this dataset is the spaceborne passive microwave brightness temperature data AMSR-E EASE-Grid, which was downloaded from the American Snow and Ice Data Center.
Through the snow cover process model and snow cover microwave radiation transmission model, real-time update of snow cover state variables with snow observation data from northern hemisphere stations, and the Kalman filtering method integrates satellite observed microwave brightness temperatures and simulated brightness temperatures to optimize snow cover parameters and forest areas. Reduce the impact of forests through forest coverage.
Compared with the snow depth observed at the station (snow depth greater than 5cm), the relative deviation in months with deeper snow depth is smaller, while the relative deviation in months with shallower snow depth is larger. For January to April when the snow depth is deeper, the average snow depth is 30cm per month, and the relative deviation is-21%. For May to June and October to December when the snow depth is shallower, the relative deviation is-63.2%.
| # | number | name | type |
| 1 | 2013CBA01800 | Study on the changes of cryosphere and its influence | National Program on Key Basic Research Project (973 Program) |
| 2 | 2013CBA01802 | Research on Cryosphere Changes and Their Impacts: Remote Sensing of Snow Cover in Complex Terrain and Multiscale Snow Cover Variations |
This work is licensed under
CC BY 4.0 (Creative Commons Attribution 4.0 International License).
| # | title | file size |
|---|---|---|
| 1 | 2001-2010年北半球雪深数据集.zip | 365.4 MiB |
| 2 | 数据文档_2001-2010年北半球雪深数据集.doc | 86.5 KiB |
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