中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Comparison of different soil temperature algorithms in permafrost regions of Qinghai-Xizang (Tibet) Plateau of China

文献类型:期刊论文

作者Hu, Guojie; Zhao, Lin; Wu, Xiaodong; Li, Ren; Wu, Tonghua; Xie, Changwei; Qiao, Yongping; Cheng, Guodong
刊名COLD REGIONS SCIENCE AND TECHNOLOGY
出版日期2016-10-01
卷号130页码:1-7
ISSN号0165-232X
关键词Soil temperature Soil thermal diffusivity Water flux density Thermal conduction-convection Analytical solution
DOI10.1016/j.coldregions.2016.07.005
通讯作者Zhao, Lin(linzhao@lzb.ac.cn)
英文摘要Soil thermal diffusivity is a crucial physical parameter that affects soil temperature. By applying sinusoidal boundary conditions, an analytical solution using separated variables for the heat conduction-convection equation was developed. The thermal diffusivity and liquid water flux density were calculated with data collected at field observation sites in permafrost regions of Qinghai-Xizang (Tibet) Plateau (QXP). By taking the soil layer at the depth of 5 cm as the upper boundary, the soil temperature at a depth of 10 cm was modeled by the thermal conduction-convection method, amplitude method and phase method. The statistical analysis of the standard error of the estimate (SEE), the normalized standard error (NSEE) and the root mean square error (RMSE) demonstrated that the thermal conduction-convection method provided the most accurate prediction of soil temperature, with average SEE, NSEE, and RMSE of 0.72 degrees C, 9.26% and 0.72 degrees C, respectively. The thermal conduction-convection method provides a useful tool for calculating soil thermal parameters, simulating soil temperature and land surface processes parameterization for permafrost changes modelling under global warming. (C) 2016 Elsevier B.V. All rights reserved.
收录类别SCI
WOS关键词CONDUCTION-CONVECTION EQUATION ; HEAT-FLUX ; SURFACE-TEMPERATURE ; THERMAL-DIFFUSIVITY ; WATER FLUX ; PARAMETERS ; PRAIRIE ; ENERGY ; MODEL
WOS研究方向Engineering ; Geology
WOS类目Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000383300400001
URI标识http://www.irgrid.ac.cn/handle/1471x/2557455
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, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Cryosphere Res Stn Qinghai Xizang Plateau, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式
GB/T 7714
Hu, Guojie,Zhao, Lin,Wu, Xiaodong,et al. Comparison of different soil temperature algorithms in permafrost regions of Qinghai-Xizang (Tibet) Plateau of China[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2016,130:1-7.
APA Hu, Guojie.,Zhao, Lin.,Wu, Xiaodong.,Li, Ren.,Wu, Tonghua.,...&Cheng, Guodong.(2016).Comparison of different soil temperature algorithms in permafrost regions of Qinghai-Xizang (Tibet) Plateau of China.COLD REGIONS SCIENCE AND TECHNOLOGY,130,1-7.
MLA Hu, Guojie,et al."Comparison of different soil temperature algorithms in permafrost regions of Qinghai-Xizang (Tibet) Plateau of China".COLD REGIONS SCIENCE AND TECHNOLOGY 130(2016):1-7.

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来源:寒区旱区环境与工程研究所

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