SIMULATION OF SURFACE URBAN HEAT ISLANDS UNDER IDEAL CONDITIONS AT NIGHT .1. THEORY AND TESTS AGAINST FIELD DATA
SIMULATION OF SURFACE URBAN HEAT ISLANDS UNDER IDEAL CONDITIONS AT NIGHT .1. THEORY AND TESTS AGAINST FIELD DATA
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DOI：
10.1007/bf00120424
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发表时间：
1991-08-01
影响因子：
4.3
通讯作者：
VOOGT, JA
中科院分区：
文献类型：
--
作者：
JOHNSON, GT;OKE, TR;VOOGT, JA
观测结果表明，城市屋顶以下大气层中的热岛效应在夜间无云、无风的情况下最为强烈。 本文概述了两个版本的数值模型来描述冷却的农村和街道峡谷表面在这些条件下，使用表面的热和辐射特性和辐射几何的峡谷。 一个版本使用一个完整的微分方程系统，另一个版本使用更简单的力恢复方法。 这两种方法被证明是在一般协议和简单的模型的输出显示给一个忠实的代表性的农村和城市表面的冷却，因此热岛，与实地观察相比。
Observations show that the urban heat island in the atmospheric layer below roof level is most strongly developed during calm, cloudless conditions at night. This paper outlines two versions of a numerical model to describe the cooling of rural and street canyon surfaces under these conditions using surface thermal and radiative properties and the radiative geometry of the canyons. One version uses a full system of differential equations and the other the simpler force-restore approach. The two approaches are shown to be in general agreement and the output of the simpler model is shown to give a faithful representation of cooling of rural and urban surfaces, and therefore heat islands, when compared with field observations.