中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
DOI10.1007/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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