A New Frozen Soil Parameterization in Land Surface Scheme
Abstract—Lack of frozen soil parameterization in the Land Surface Models will result in great uncertainty of soil moisture simulation in the permafrost and seasonal frozen soil regions. In this paper, we incorporate a new frozen soil parameterization in the Land Surface Scheme—SiB2. A modified appro...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Text |
| Language: | English |
| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.500.5593 http://www.terrapub.co.jp/e-library/toyota/pdf/405.pdf |
| Summary: | Abstract—Lack of frozen soil parameterization in the Land Surface Models will result in great uncertainty of soil moisture simulation in the permafrost and seasonal frozen soil regions. In this paper, we incorporate a new frozen soil parameterization in the Land Surface Scheme—SiB2. A modified approximation Stefan solution is used to predict the frost/thaw depth, and then the soil temperature and moisture profiles are estimated by taking account the effects of frozen/thaw process. The model is validated using GAME-Tibet observations. It estimates the frost depth precisely and improves the soil moisture estimation significantly. The liquid water content and phase transition time are predicted reasonably. |
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