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题名: Variability of Soil Moisture and Its Relationship with Surface Albedo and Soil Thermal Parameters over the Loess Plateau
作者: Guan, XD(管晓丹); Huang, JP(黄建平); Guo, N; Bi, JR(闭建荣); Wang, GY(王国印)
收录类别: SCIE ; CSCD
出版日期: 2009-07
刊名: ADVANCES IN ATMOSPHERIC SCIENCES
卷号: 26, 期号:4, 页码:692-700
期刊主办单位: 中国科学院大气物理研究所
出版者: SCIENCE CHINA PRESS
出版地: BEIJING
英文摘要: Data from July 2006 to June 2008 observed at SACOL (Semi-Arid Climate and Environment Observatory of Lanzhou University, 35.946 degrees N, 104.137 degrees E, elev. 1961 m), a semi-arid site in Northwest China, are used to study seasonal variability of soil moisture, along with surface albedo and other soil thermal parameters, such as heat capacity, thermal conductivity and thermal diffusivity, and their relationships to soil moisture content. The results indicate that surface albedo decreases with increases in soil moisture content, showing a typical exponential relation between the surface albedo and the soil moisture. The heat capacity, the soil thermal diffusivity, and soil thermal conductivity show large variations between Julian day 90-212 and 450-578. The soil thermal conductivity is found to increase as a power function of soil moisture. Soil heat capacity and soil thermal diffusivity increase with increases in soil moisture. The SACOL observed soil moisture are also used to validate the AMSR-E/AQUA retrieved soil moisture and there is good agreement between them. The analysis of the relationship between satellite retrieved soil moisture and precipitation suggests that the variability of soil moisture depends on the variation of precipitation over the Loess Plateau.
关键词: soil moisture ; surface albedo ; soil heat capacity ; soil thermal conductivity ; soil thermal diffusivity ; AMSR-E soil moisture product ; Loess Plateau
作者部门: [Guan Xiaodan ; Huang Jianping ; Bi Jianrong ; Wang Guoyin] Lanzhou Univ, Coll Atmospher Sci, Minist Educ, Key Lab Semi Arid Climate Change, Lanzhou 730000, Peoples R China ; [Guo Ni] China Meteorol Adm, Inst Arid Meteorol, Lanzhou 730020, Peoples R China
通讯作者: Huang, JP (reprint author), Lanzhou Univ, Coll Atmospher Sci, Minist Educ, Key Lab Semi Arid Climate Change, Lanzhou 730000, Peoples R China.
学科分类: Meteorology & Atmospheric Sciences
文章类型: Article
所属项目编号: National Natural Science Foundation of China [40725015, 40633017] ; National Basic Research Program of China [2006CB400501]
所属项目名称: 国家自然科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划)
项目资助者: NSFC ; MOST
语种: 英语
DOI: 10.1007/s00376-009-8198-0
ISSN号: 0256-1530
WOS记录号: WOS:000267773800009
CSCD记录号: CSCD:3789664
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/119155
Appears in Collections:大气科学学院_期刊论文

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Recommended Citation:
Guan, XD,Huang, JP,Guo, N,et al. Variability of Soil Moisture and Its Relationship with Surface Albedo and Soil Thermal Parameters over the Loess Plateau[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2009,26(4):692-700.
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