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Title: 長崎豪雨における10分間降水量の分布
Other Titles: Spatial and Temporal Distributions of 10-minute Precipitation over Nagasaki Districts on 23 July 1982
Authors: 荒生, 公雄 / 宮崎, 義生
Authors (alternative): Arao, Kimio / Miyazaki, Yoshio
Issue Date: 29-Feb-1984
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.35, p.33-44; 1984
Abstract: There was a heavy rain over Nagasaki districts on 23 July 1982. It killed 299 persons and damaged severely to Nagasaki City and its neighboring towns. It then made the new record of 187 millimeters per hour in Japan. The following results are obtained in this study. (1) The antecedent heavy rain occured on 20 July also concentrated on the eastern part of Nagasaki City, where had the largest rainfall on 23 July. Consequently, the total precipitation in this region amounted to 895 millimeters in five days from 20 to 24 July. (2) The heavy rain on 23 July composed of five rain storms and each storm ordinarily moved from the west to the east. Two rain storms which had more than 40 millimeters per 10 minutes almost stopped over the regions suffered a dangerous damage. Furthermore, another rain storm visited to the same region one or two hours later. (3) The heavy rain over Isahaya districts occured on 25 July 1957 had larger total precipitation and spread more wide area than Nagasaki heavy rain. In this sense, Isahaya heavy rain is still the most severe rainfall in the bai-u period over Japan.
URI: http://hdl.handle.net/10069/32533
ISSN: 0386443X
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:No. 35

Citable URI : http://hdl.handle.net/10069/32533

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