Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1029/2004JD004802 |
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
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ISSN | 2169-897X |
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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