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学科主题: 地理学::自然地理学
题名: Development of a land surface model with coupled snow and frozen soil physics
作者: Wang, L (Wang, Lei)1, 2, 3; Zhou, J (Zhou, Jing)1; Qi, J (Qi, Jia)1, 3; Sun, LT (Sun, Litao)1, 3; Yang, K (Yang, Kun)1, 2, 3; Tian, LD (Tian, Lide)1, 2, 3; Lin, YL (Lin, Yanluan)4, 5; Liu, WB (Liu, Wenbin)6; Shrestha, M (Shrestha, Maheswor)7; Xue, YK (Xue, Yongkang)8; Koike, T (Koike, Toshio)9; Ma, YM (Ma, Yaoming)1, 2, 3; Li, XP (Li, Xiuping)1; Chen, YY (Chen, Yingying)1, 2; Chen, DL (Chen, Deliang)10; Piao, SL (Piao, Shilong)11; Lu, H (Lu, Hui)4, 5
通讯作者: Wang, L ; Zhou, J
关键词: BIOSPHERE HYDROLOGICAL MODEL ; ATMOSPHERE TRANSFER SCHEME ; SIMULTANEOUS HEAT ; MASS-TRANSFER ; TIBETAN PLATEAU ; WATER DYNAMICS ; COLD REGION ; COVER ; PARAMETERIZATION ; INFILTRATION
刊名: WATER RESOURCES RESEARCH
发表日期: 2017
DOI: 10.1002/2017WR020451
卷: 53, 期:6, 页:5085-5103
收录类别: SCI
合作性质: 国际
文章类型: Article
类目[WOS]: Environmental Sciences; Limnology; Water Resources
研究领域[WOS]: Environmental Sciences & Ecology; Marine & Freshwater Biology; Water Resources
英文摘要: Snow and frozen soil are important factors that influence terrestrial water and energy balances through snowpack accumulation and melt and soil freeze-thaw. In this study, a new land surface model (LSM) with coupled snow and frozen soil physics was developed based on a hydrologically improved LSM (HydroSiB2). First, an energy-balance-based three-layer snow model was incorporated into HydroSiB2 (hereafter HydroSiB2-S) to provide an improved description of the internal processes of the snow pack. Second, a universal and simplified soil model was coupled with HydroSiB2-S to depict soil water freezing and thawing (hereafter HydroSiB2-SF). In order to avoid the instability caused by the uncertainty in estimating water phase changes, enthalpy was adopted as a prognostic variable instead of snow/soil temperature in the energy balance equation of the snow/frozen soil module. The newly developed models were then carefully evaluated at two typical sites of the Tibetan Plateau (TP) (one snow covered and the other snow free, both with underlying frozen soil). At the snow-covered site in northeastern TP (DY), HydroSiB2-SF demonstrated significant improvements over HydroSiB2-F (same as HydroSiB2-SF but using the original single-layer snow module of HydroSiB2), showing the importance of snow internal processes in three-layer snow parameterization. At the snow-free site in southwestern TP (Ngari), HydroSiB2-SF reasonably simulated soil water phase changes while HydroSiB2-S did not, indicating the crucial role of frozen soil parameterization in depicting the soil thermal and water dynamics. Finally, HydroSiB2-SF proved to be capable of simulating upward moisture fluxes toward the freezing front from the underlying soil layers in winter.
语种: 英语
WOS记录号: WOS:000405997000035
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/8199
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China.
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China.
3.Univ Chinese Acad Sci, Beijing, Peoples R China.
4.Tsinghua Univ, Dept Earth Syst Sci, Beijing, Peoples R China.
5.Minist Educ, Key Lab Numer Simulat Earth Syst, Beijing, Peoples R China.
6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China.
7.Water & Energy Commiss Secretariat, Kathmandu, Nepal.
8.Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90024 USA.
9.Univ Tokyo, Dept Civil Engn, Tokyo, Japan.
10.Univ Gothenburg, Dept Earth Sci, Gothenburg, Sweden.
11.Peking Univ, Coll Urban & Environm Sci, Sino French Inst Earth Syst Sci, Beijing, Peoples R China.

Recommended Citation:
Wang, L ,Zhou, J ,Qi, J ,et al. Development of a land surface model with coupled snow and frozen soil physics[J]. WATER RESOURCES RESEARCH,2017,53(6):5085-5103.
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