@article{oai:tokyo-metro-u.repo.nii.ac.jp:00003053,
 author = {スガワラ, ヒロフミ and タナカ, ヒロハル and ナリタ, ケンイチ and ナカノ, トモコ and ミカミ, タケヒコ and Sugawara, Hirofumi and Tanaka, Hiroharu and Narita, Ken-ichi and Nakano, Tomoko and Mikami, Takehiko},
 issue = {43},
 journal = {Geographical Reports of Tokyo Metropolitan University},
 month = {},
 note = {Synchronized kite balloon (kytoon) measurements in an urban park revealed the development of a nocturnal stable layer, which could mitigate urban heat island effects. A stable layer developed from the surface to 71 m above ground level in the park, although neutral stratification lasted throughout the night in the surrounding urban area. Calm, clear sky conditions triggered the development of the stable layer and a significant cool island. The cooling energy of the cool island formation was estimated to be approximately 5 Wm^-2.},
 pages = {83--89},
 title = {How much cool air does an urban green park produce?},
 year = {2008}
}