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Title: 雲仙岳周辺に火山性土石流を発生させた1995年の豪雨
Other Titles: Heavy Rainfalls over the Mt.Unzen in Nagasaki Prefecture in 1995 Which Caused Volcanic Debris Flows
Authors: 荒生, 公雄 / 太田, 綾子 / 木下, 美紀 / 武田, 喬男 / 藤吉, 康志
Authors (alternative): Arao, Kimio / Ohta, Ayako / Kinoshita, Miki / Takeda, Takao / Fujiyoshi, Yasushi
Issue Date: 31-May-1997
Publisher: 長崎大学教育学部
Citation: 長崎大学教育学部自然科学研究報告. vol.57, p.13-26; 1997
Abstract: The heavy rainfalls over Mt.Unzen at Nagasaki Prefecture in 1995 which caused volcanic debris flows were invesitgated using rain-guage records and an RHI radar observations. The main results are as follows. (1) The rainfall on 1 May 1995 showed that the band-shaped rain echo generated near the Nagasaki Peninsula moved to the east and attacked Mt.Unzen. The band echo was rather weak on the weatern sea are and grew stronger at the mountain reagion. This suggests the effect of mountain on the rainfall activity. (2) The rainfall on 3 July 1995 indicated that the stationary front, which called the baiu front alternatively, brought a long lasting rainfall over the Shimabara district. Consequently, the daily maximum precipitation of 180.55mm was observed at Unzendake Meteorological Station. (3) The rainfall event at the early morning on 1 September were very interesting, because it brought a very strong rainfall as much as 88mm per hour near Mt.Unzen and because it didnot cause the debris flow. An extremely local activity of the thunderstorm was revealed as the reason of no occurrence of debris flow.
URI: http://hdl.handle.net/10069/32126
ISSN: 0386443X
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:No. 57

Citable URI : http://hdl.handle.net/10069/32126

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