Arid
DOI10.1029/2004JD004802
Soil water evaporation during the dry season in an arid zone
Agam, N; Berliner, PR; Zangvil, A; Ben-Dor, E
通讯作者Agam, N
来源期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
出版年2004
卷号109期号:D16
英文摘要

[1] The objective of this study was to assess the relative magnitude of latent heat flux density over a bare loess soil in the Negev desert throughout the dry season, during which the atmospheric models usually assume the lack of latent heat flux. The measurements were carried out in the northern Negev, Israel, over a bare loess soil, during nine 24-hour field campaigns throughout the dry season of 2002. In addition to a micrometeorological station that was set up in the research site, an improved microlysimeter was installed. The representativity of the microlysimeter was assessed by comparing its surface temperature to that of the surrounding surface using thermal images acquired on an hourly basis during several campaigns. It was found that although the water content of the uppermost soil is significantly lower than the wilting point, for which most of the commonly used meteorological models would assume no latent heat flux, the latter was similar to 20% of the net-radiation during the night and 10 - 15% during the day. It is therefore concluded that latent heat flux plays a major role in the dissipation of the net radiation during the dry season in the Negev desert.


英文关键词energy partitioning latent heat flux bare soil
类型Article
语种英语
国家Israel
收录类别SCI-E
WOS记录号WOS:000223546500002
WOS关键词LAND-SURFACE MODEL ; TIBETAN PLATEAU ; ENERGY BUDGET ; HEAT FLUXES ; SIMULATION ; MOISTURE ; DESERT ; PARAMETERIZATION ; BALANCE ; GAME/TIBET
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
来源机构Ben-Gurion University of the Negev
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/147367
作者单位(1)Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, IL-84990 Sede Boqer, Israel;(2)Tel Aviv Univ, Dept Geog, Remote Sensing & GIS Lab, IL-69978 Tel Aviv, Israel;(3)Ben Gurion Univ Negev, Dept Geog & Environm Dev, IL-84105 Beer Sheva, Israel
推荐引用方式
GB/T 7714
Agam, N,Berliner, PR,Zangvil, A,et al. Soil water evaporation during the dry season in an arid zone[J]. Ben-Gurion University of the Negev,2004,109(D16).
APA Agam, N,Berliner, PR,Zangvil, A,&Ben-Dor, E.(2004).Soil water evaporation during the dry season in an arid zone.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,109(D16).
MLA Agam, N,et al."Soil water evaporation during the dry season in an arid zone".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 109.D16(2004).
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