1997 Fiscal Year Final Research Report Summary
| Project/Area Number |
07404024
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | OBIRIN UNIVERSITY (1997)
Kyushu University (1995-1996) |
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Principal Investigator |
TAKAHASHI Tsutomu Obirin University, School of International Studies, Professor, 国際学部, 教授 (20197742)
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| Co-Investigator(Kenkyū-buntansha) |
森 一正 気象研究所, 台風研究部, 主任研究員
森田 治 九州大学, 理学部, 助教授 (70112290)
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| Project Period (FY) |
1995 – 1997
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| Keywords | Torrential Rainfall / Baiu Heavy Rain / Cloud Organization / Heavy Rain / Monsoon Rain |
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| Research Abstract |
Torrential rain often results from the interaction of two cloud systems. Example of this was observed to occur during the Baiu season in southern Kyushu, Japan. Here, daughter cell moves in from the west and approaches a mother cell. As they collide, the mother cell integrates itself into the lower part of the daughter cell. Videosondes, which can report both the shape and charge of precipitation particles, were used to map the precipitation particle distribution of these systems. Results suggest that the drop growth process is accelerated by the rapid hail growth which occurs when graupel falling from high in the upper cell collects supercooled drops from the lower daughter cell near the freezing level.
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