Effects of large green park on urban atmospheric cooling during nighttime

The cool-island phenomena were observed at Osaka Castle Park on August 1-15, 2007. The surface-air temperature inside the park was nocturnally lower than that around urban areas. The cool-island intensity was more than +2.0°C during 4-5 JST. The cooler air generated inside the park extended downwind...

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Bibliographic Details
Published inNihon Seikishō Gakkai zasshi Vol. 50; no. 1; p. 23
Main Authors Shigeta, Yoshinori, Takaoka, Toshiyuki, Ohashi, Yukitaka, Kikegawa, Yukihiro, Hirano, Yujiro
Format Journal Article
LanguageEnglish
Published Izumo City Japan Science and Technology Agency 01.01.2013
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Summary:The cool-island phenomena were observed at Osaka Castle Park on August 1-15, 2007. The surface-air temperature inside the park was nocturnally lower than that around urban areas. The cool-island intensity was more than +2.0°C during 4-5 JST. The cooler air generated inside the park extended downwind at the distance of about 250 m. Next, we compared the atmospheric cooling amounts on the forest area with that on the lawn area. As a result, it was suggested that the cooler air over the forest canopy subsided into and accumulated on the ground surface.
ISSN:0389-1313
1347-7617