Applied Modeling of the Nighttime Surface Energy Balance over Land

Applied Modeling of the Nighttime Surface Energy Balance over Land
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陆地夜间表面能量平衡的应用模拟

DOI:
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发表时间:
1988
期刊:
影响因子:
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通讯作者:
H. D. de Bruin
H. D. de Bruin
中科院分区:
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文献类型:
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作者:
A. Holtslag;H. D. de Bruin

文献摘要

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摘要 本文提出了一种半经验方案,将夜间地表感热、潜热和动量通量与常规天气数据联系起来。每半小时描述一次陆地表面辐射和能量平衡的主要成分。对 Cabauw 草地覆盖表面的观测用于研究文献中提出的主题,并开发新的参数化。该方案的输入数据是大气表层单个高度的总云量、风速、气温和比湿亏量。提出了用于估计土壤热通量的半经验表达式。还半经验地描述了表面辐射温度和粗糙度长度水平处的温度之间的关系。发现它们的差异相当大,特别是在低风速时。该方案的输出以主要强迫项的形式呈现。平均而言,模型的一致性...
Abstract In this paper a semiempirical scheme is proposed which relates the nocturnal surface fluxes of sensible heat, latent heat, and momentum to routine weather data. The main components of the surface radiation and energy balance over land are described on a half-hourly basis. Observations over a grass-covered surface at Cabauw are used to investigate topics proposed in the literature, and to develop new parameterizations. The input data of the scheme are total cloud cover, wind speed, air temperature, and specific humidity deficit at single heights in the atmospheric surface layer. A semiempirical expression is proposed for the estimation of the soil heat flux. Also the relation between the surface radiation temperature and the temperature at the level of the roughness length is described semiempirically. It is found that their difference is considerable, especially for low wind speeds. The output of the scheme is presented in terms of the main forcing terms. On average, the agreement of the model qu...