MICROCLIMATIC VARIATIONS ATTRIBUTABLE TO URBAN-CANYON ASYMMETRY AND ORIENTATION

被引：32

作者：

TODHUNTER, PE

机构：

[1] Department of Geography, University of North Dakota, Grand Forks, ND

来源：

PHYSICAL GEOGRAPHY | 1990年 / 11卷 / 02期

关键词：

Urban canyon energy budgets; Urban climatology; Urban geometry;

D O I：

10.1080/02723646.1990.10642398

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The energetic response of urban canyons to variable urban geometry is investigated using the URBAN3 numerical model. The energy budgets of six typical urban geometry scenarios encompassing a combination of symmetrical and asymmetrical north-south and east-west aligned urban canyons are examined for a warm summer day under which maximum inter-urban system energetic variations would be expected. Significant inter-urban canyon energy total differences are found which are closely linked to patterns of net solar radiation. The net solar radiation, net radiation and turbulent sensible heat flux totals are particularly sensitive to urban geometry. Implications of the study with respect to the magnitude of synoptic vs. geometric sources of urban energetic variation, and microscale and mesoscale urban modelling applications are discussed. © 1990 Taylor & Francis Group, LLC.

引用

页码：131 / 141

页数：11

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