Modeling permafrost properties in the Qinghai-Xizang (Tibet) Plateau
文献类型：期刊论文
| 作者 | Hu GuoJie; Zhao Lin; Wu XiaoDong; Li Ren; Wu TongHua; Xie ChangWei; Pang QiangQiang; Xiao Yao; Li WangPing; Qiao YongPing |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 58期号:12页码:2309-2326 |
| 关键词 | permafrost COUPMODEL hydrothermal processes phase change soil temperature soil moisture |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-015-5197-0 |
| 通讯作者 | Zhao Lin(linzhao@lzb.ac.cn) |
| 英文摘要 | Water and heat dynamics in the active layer at a monitoring site in the Tanggula Mountains, located in the permafrost region of the Qinghai-Xizang (Tibet) Plateau (QXP), were studied using the physical-process-based COUPMODEL model, including the interaction between soil temperature and moisture under freeze-thaw cycles. Meteorological, ground temperature and moisture data from different depths within the active layer were used to calibrate and validate the model. The results indicate that the calibrated model satisfactorily simulates the soil temperatures from the top to the bottom of the soil layers as well as the moisture content of the active layer in permafrost regions. The simulated soil heat flux at depths of 0 to 20 cm was consistent with the monitoring data, and the simulations of the radiation balance components were reasonable. Energy consumed for phase change was estimated from the simulated ice content during the freeze/thaw processes from 2007 to 2008. Using this model, the active layer thickness and the energy consumed for phase change were predicted for future climate warming scenarios. The model predicts an increase of the active layer thickness from the current 330 cm to approximately 350-390 cm as a result of a 1-2A degrees C warming. However, the effect active layer thickness of more precipitation is limited when the precipitation is increased by 20%-50%. The COUPMODEL provides a useful tool for predicting and understanding the fate of permafrost in the QXP under a warming climate. |
| 收录类别 | SCI |
| WOS关键词 | ACTIVE LAYER THICKNESS ; SCOTS PINE ECOSYSTEM ; SOIL-TEMPERATURE ; CLIMATE-CHANGE ; MASS-TRANSFER ; FROZEN SOIL ; WATER ; HEAT ; MOISTURE ; CHINA |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000365769400018 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557176 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao Lin |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Cryosphere Res Stn Qinghai Xizang Plateau, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu GuoJie,Zhao Lin,Wu XiaoDong,et al. Modeling permafrost properties in the Qinghai-Xizang (Tibet) Plateau[J]. SCIENCE CHINA-EARTH SCIENCES,2015,58(12):2309-2326. |
| APA | Hu GuoJie.,Zhao Lin.,Wu XiaoDong.,Li Ren.,Wu TongHua.,...&Shi JianZong.(2015).Modeling permafrost properties in the Qinghai-Xizang (Tibet) Plateau.SCIENCE CHINA-EARTH SCIENCES,58(12),2309-2326. |
| MLA | Hu GuoJie,et al."Modeling permafrost properties in the Qinghai-Xizang (Tibet) Plateau".SCIENCE CHINA-EARTH SCIENCES 58.12(2015):2309-2326. |
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来源：寒区旱区环境与工程研究所
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