| Project/Area Number |
25350514
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Natural disaster / Disaster prevention science
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| Research Institution | Japan, Meteorological Research Institute |
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Principal Investigator |
Hayashi Syugo 気象庁気象研究所, 予報研究部, 主任研究官 (20354441)
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| Co-Investigator(Kenkyū-buntansha) |
KUSUNOKI KENICHI 気象庁気象研究所, 気象衛星・観測システム研究部, 室長 (40354485)
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| Co-Investigator(Renkei-kenkyūsha) |
FUJIBE FUMIAKI 首都大学東京, 都市環境学部地理環境コース, 特任教授 (60343886)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 雷観測 / 偏波レーダ情報 / 積乱雲 / シビアストーム / 雷災害 / 偏波レーダ |
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| Outline of Final Research Achievements |
It is well known that existence of graupel in a thunderstorm is very important for lightning initiation. But the location and electrical charge of graupel in a thunderstorm is not clarified. In this study, using 3-dimensional lightning observation system and polarimetric radar data, the characteristics of graupel volume and upward velocity in a thunderstorm are clarified. As a result, it is revealed that several tens cubic kilometer of graupel volume is needed for a lightning initiation. Based on these results, lightning forecast is improved.
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