Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
What to do About Urban-generated Weather and Climate Changes
For many years it has been recognized that urban areas alter their climate, being warmer, dryer, and less windy than nearby rural areas. In recent years evidence has grown that large urban centers also produce sizeable changes in precipitation and even storms, changes extending well beyond the urban confines. A major national project focusing on this surprising possibility has just ended. For an area of over four thousand square kilometers, about three times the size of the city in the study area, the project has found that the summer precipitation conditions are increased downcity (east) with 10 percent more clouds, up to 30 percent more rain, 50 percent more heavy rainstorms, and 100 percent more hail than rural areas. Impact analyses reveal a series of costs to the affected urban and suburban areas, particularly to their drainage and transportation systems, but a general benefit to agriculture activities. Causes of the added clouds, rain, and storms relate to a host of urban factors, most of which are deemed uncontrollable through design or pollutant limitations. Results suggest that adaptation, or agricultural use of the land in the affected areas in and east of cities, is the proper course for urban and regional planning.
What to do About Urban-generated Weather and Climate Changes
For many years it has been recognized that urban areas alter their climate, being warmer, dryer, and less windy than nearby rural areas. In recent years evidence has grown that large urban centers also produce sizeable changes in precipitation and even storms, changes extending well beyond the urban confines. A major national project focusing on this surprising possibility has just ended. For an area of over four thousand square kilometers, about three times the size of the city in the study area, the project has found that the summer precipitation conditions are increased downcity (east) with 10 percent more clouds, up to 30 percent more rain, 50 percent more heavy rainstorms, and 100 percent more hail than rural areas. Impact analyses reveal a series of costs to the affected urban and suburban areas, particularly to their drainage and transportation systems, but a general benefit to agriculture activities. Causes of the added clouds, rain, and storms relate to a host of urban factors, most of which are deemed uncontrollable through design or pollutant limitations. Results suggest that adaptation, or agricultural use of the land in the affected areas in and east of cities, is the proper course for urban and regional planning.
What to do About Urban-generated Weather and Climate Changes
Changnon, Stanley A.Jr. (Autor:in)
Journal of the American Planning Association ; 45 ; 36-47
01.01.1979
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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