著者

原 由紀男 中西 幹郎 小林 文明

出版者

日本流体力学会

雑誌

日本流体力学会年会講演論文集 (ISSN:13428004)

巻号頁・発行日

vol.2001, pp.47-48, 2001-07-31

参考文献数

1

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In order to examine the generation mechanism of a cumulonimbus that caused a heavy rain in Tokyo urban area on 22 July 1999,three numerical experiments are performed with a mesoscale simulation model; Case 1 (control run) refers to a nearly realistic experiment, Case 2 an experiment without urban effects, and Case 3 an experiment without raindrop evaporating effects. Although Cases 2 and 3 show slightly different distributions of wind and cloud from what are simulated for Case 1,all the cases reproduce clouds that occurred over Tokyo urban area. This may suggest that the main source generating clouds over Tokyo urban area lies in other effects, e.g., the convergence of sea breezes from Tokyo Bay and Sagami Bay.