QQ客服 官方微博 反馈留言

	Frozen soil parameterization in SiB2 and its validation with GAME-Tibet observations
	Li, X; Koike, T
刊名	COLD REGIONS SCIENCE AND TECHNOLOGY
	2003-03-01
卷号	36期号:1-3页码:165-182
关键词	frozen soil parameterization land surface model Tibetan plateau
ISSN号	0165-232X
通讯作者	Li, X()
英文摘要	This paper presents a new frozen soil parameterization in the land surface scheme (LSS). A modified approximation Stefan solution is incorporated in the framework of the land surface model-SiB2 to calculate the frost/thaw depth over time and to estimate the soil moisture and temperature profiles during the freeze/thaw cycle. The structure of the soil model in Simple Biosphere Model 2 (SiB2) is kept, but the governing equations of water balance and surface heat balance are modified to account for soil freezing/thawing. The model is calibrated and validated using the GEVVEX Asian Monsoon Experiment (GAME)-Tibet observations at MS3608 site, Tibetan Plateau. First, the original SiB2 without frozen soil parameterization is calibrated using the observations in summer; an optimized parameter set for the short grassland in the Tibetan Plateau was obtained. Then, the modified SiB2 with frozen soil parameterization is validated using the soil moisture and temperature observations in winter. The results show that the new model estimates the frost depth precisely with an error less than 9% and predicts the soil temperature reasonably and phase transition time realistically. It also improves the soil moisture estimation in the surface layer and the root zone significantly. The mean absolute errors of simulated soil moisture using the new model are 0.020 and 0.013 in the surface layer and root zone, respectively, far below than those without using the frozen soil parameterization. (C) 2003 Published by Elsevier Science B.V.
收录类别	SCI
WOS关键词	SIMPLE BIOSPHERE MODEL ; GENERAL-CIRCULATION MODEL ; LAND-SURFACE SCHEME ; ACTIVE LAYER ; ATMOSPHERIC GCMS ; THAW ; PERMAFROST ; FREEZE ; IMPACT ; WATER
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:000182002400013
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556894
专题	寒区旱区环境与工程研究所
通讯作者	Li, X
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Univ Tokyo, Dept Civil Engn, Tokyo 113, Japan
推荐引用方式 GB/T 7714	Li, X,Koike, T. Frozen soil parameterization in SiB2 and its validation with GAME-Tibet observations[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2003,36(1-3):165-182.
APA	Li, X,&Koike, T.(2003).Frozen soil parameterization in SiB2 and its validation with GAME-Tibet observations.COLD REGIONS SCIENCE AND TECHNOLOGY,36(1-3),165-182.
MLA	Li, X,et al."Frozen soil parameterization in SiB2 and its validation with GAME-Tibet observations".COLD REGIONS SCIENCE AND TECHNOLOGY 36.1-3(2003):165-182.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。