Comparison of the thermal conductivity parameterizations for a freeze-thaw algorithm with a multi-layered soil in permafrost regions
文献类型：期刊论文
| 作者 | Hu, Guojie; Zhao, Lin3; Wu, Xiaodong; Li, Ren; Wu, Tonghua; Xie, Changwei; Pang, Qiangqiang; Zou, Defu |
| 刊名 | CATENA
 |
| 出版日期 | 2017-09-01 |
| 卷号 | 156页码:244-251 |
| 关键词 | Soil thermal conductivity Freeze-thaw depth Multi-layered soil Permafrost Tibet Plateau |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2017.04.011 |
| 通讯作者 | Zhao, Lin(linzhao@lzb.ac.cn) |
| 英文摘要 | Soil thermodynamic properties are critical for determining the soil freezing and thawing depths of active layers which is highly important for the hydrology and energy balances of permafrost regions. Here, three soil thermal conductivity parameterizations were evaluated against detailed field measurements at two field sites in the permafrost region of Qinghai-Xizang (Tibet) Plateau (QXP). The results revealed that the comprehensive parameterization based on different schemes for calculating soil thermal conductivity is relatively close to the measured values in unfrozen soil, and Johansen's parameterization is the best in the frozen soil. Then, we first combined three thermal conductivity parameterizations with a freeze-thaw algorithm to simulate freezing and thawing depths of multi-layered soil. The analysis showed that the average percentage difference between the observed and calculated soil thawing depth values for the Johansen's and comprehensive parameterization was 10.42% and 8.49% at Tanggula (TGL) and. Xidatan (XDT), receptively. It indicated that the comprehensive parameterization with freeze-thaw algorithm simulated the soil thawing depth more similarly to the observed data for multi-layered soil. These findings can also be incorporated into other land surface, hydrological or ecosystem models to simulate the freeze-thaw cycles in permafrost regions. |
| 收录类别 | SCI |
| WOS关键词 | TIBETAN PLATEAU ; SURFACE TEMPERATURES ; NUMERICAL-MODEL ; CLIMATE-CHANGE ; ACTIVE LAYER ; FROZEN SOIL ; MOISTURE ; HEAT ; SIMULATION ; COLD |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| WOS类目 | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000404305700025 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557732 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, Lin |
| 作者单位 | 1.Chinese Acad Sci, Cryosphere Res Stn Qinghai Xizang Plateau, Lanzhou 730000, Peoples R China 2.State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Guojie,Zhao, Lin,Wu, Xiaodong,et al. Comparison of the thermal conductivity parameterizations for a freeze-thaw algorithm with a multi-layered soil in permafrost regions[J]. CATENA,2017,156:244-251. |
| APA | Hu, Guojie.,Zhao, Lin.,Wu, Xiaodong.,Li, Ren.,Wu, Tonghua.,...&Zou, Defu.(2017).Comparison of the thermal conductivity parameterizations for a freeze-thaw algorithm with a multi-layered soil in permafrost regions.CATENA,156,244-251. |
| MLA | Hu, Guojie,et al."Comparison of the thermal conductivity parameterizations for a freeze-thaw algorithm with a multi-layered soil in permafrost regions".CATENA 156(2017):244-251. |
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来源：寒区旱区环境与工程研究所
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