Arid
DOI10.1002/joc.1752
The role of evaporation in the energy balance of an open-air scaled urban surface
Pearlmutter, D.1; Krueger, E. L.2; Berliner, P.1
通讯作者Pearlmutter, D.
来源期刊INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN0899-8418
EISSN1097-0088
出版年2009
卷号29期号:6页码:911-920
英文摘要

Surface evaporation is an important component of the urban energy balance, and its role in arid-zone cities may significantly differ from that observed in more temperate regions. However, the quantification of evapotranspiration is difficult in a Complex urban setting, given the heterogeneity of the terrain and its various dry and wet elements. Here an open-air scaled urban surface (OASUS) is employed to quantity latent heat flux as a function of the surface area available for evaporation and the three-dimensional (3-D) urban geometry. The OASUS model consists of an extensive urban-like building/street array located in an and Negev region of southern Israel (30.8 degrees N, 480 m above sea level). Measurements were carried out during the summer month of August, and flux partitioning was analysed using evaporation pans of varying surface areas embedded in arrays of varying height. Results indicated that the increase in latent heat removal with respect to equivalent ’vegetative’ surface area was nearly linear. Increasing latent heat flux with ’vegetated fraction’ was offset in approximately equal measure by decreases in storage and turbulent sensible heat flux. The proportion of the radiant energy budget represented by evaporative heat loss was also linked to the 3-D geometry of the array, increasing linearly with the ratio between vegetative cover and the ’complete’ urban surface area. Copyright (c) 2008 Royal Meteorological Society


英文关键词scale-modelling urban climate surface energy balance evaporation
类型Article
语种英语
国家Israel ; Brazil
收录类别SCI-E
WOS记录号WOS:000265807500010
WOS关键词CENTRAL-EUROPEAN CITY ; ATMOSPHERIC MODELS ; HEAT-STORAGE ; FLUXES ; SCHEME ; AREAS ; WATER ; PARAMETERIZATION ; TEMPERATURES ; TURBULENCE
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/2XILL650/161067
作者单位1.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, IL-84105 Beer Sheva, Israel;
2.Univ Tecnol Fed Parana, Dept Construcao Civil, Maringa, Parana, Brazil
推荐引用方式
GB/T 7714
Pearlmutter, D.,Krueger, E. L.,Berliner, P.. The role of evaporation in the energy balance of an open-air scaled urban surface[J]. Ben-Gurion University of the Negev,2009,29(6):911-920.
APA Pearlmutter, D.,Krueger, E. L.,&Berliner, P..(2009).The role of evaporation in the energy balance of an open-air scaled urban surface.INTERNATIONAL JOURNAL OF CLIMATOLOGY,29(6),911-920.
MLA Pearlmutter, D.,et al."The role of evaporation in the energy balance of an open-air scaled urban surface".INTERNATIONAL JOURNAL OF CLIMATOLOGY 29.6(2009):911-920.
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