OROGRAPHIC INFLUENCE ON URBAN CLIMATE
OROGRAPHIC INFLUENCE ON URBAN CLIMATE
复制标题
地形对城市气候的影响
DOI：
10.2307/44279768
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发表时间：
1989
影响因子：
11.8
通讯作者：
Filliger
中科院分区：
文献类型：
--
作者：
Wanner;Filliger
城市诱发的气象现象通常限于单一粗糙要素或热源(微尺度)和大城市区域(中尺度a)之间的时间和长度尺度。因此，与这些尺度有关的地形诱导现象对城市风量的四个相关预算(能量、水、空气污染物和动量)产生最重要的影响。地形引起的气象现象和城市预算的比较导致了四个过程。或过程组，对城市气候很重要：空气偏转和在宽阔山谷中疏导。高山链背风山脚上的强烈下坡风。最后，最重要的现象是热地形风系统。这些风以一种复杂的方式与地转风以及城市地表引起的各种热和机械效应相互作用。
Urban induced meteorological phenomena are normally restricted to time and length scales between a single roughness element or heat source (micro-scale ) and a large metropolitan area (meso-scale a). For this reason, orographically induced phenomena pertaining to these scales exert the most important influence upon the four relevant budgets (energy, water, air contaminants and momentum) of an urban air volume. A comparison of both orographically induced meteorological phenomena and urban budgets leads to four processes. or process groups, being important for the urban climate: Air deflection and channelling in broad valleys. Strong downslope winds on the leeside foothills of high mountain chains. Orographically induced precipitation in high slope areas and on mountain tops, and finally, the most important phenomena, the thermotopographic wind systems. These winds interact in a complex manner with the geostrophic wind and the various thermal and mechanical effects caused by the urban land surface.