Invetigation into lightning attachment processes and modification of return stroke modeling
| Project/Area Number |
23403007
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Social systems engineering/Safety system
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| Research Institution | Gifu University |
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Principal Investigator |
WANG Daohong 岐阜大学, 工学部, 准教授 (20273120)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAGI Nobuyuki 岐阜大学, 工学部, 教授 (80179415)
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| Project Period (FY) |
2011-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥20,280,000 (Direct Cost: ¥15,600,000、Indirect Cost: ¥4,680,000)
Fiscal Year 2014: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2011: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
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| Keywords | 落雷 / 雷害 / 帰還雷撃 / 最終雷撃過程 / 放電 / 大気電気 / 国際研究者交流（アメリカ） / 落雷の最終雷撃過程 / 避雷針 / 落雷位置標定装置 / 雷放電 / 雷 / リーダ放電 |
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| Outline of Final Research Achievements |
We have developed a high speed optical imaging system specifically designed for studying the lightning attachment process. We have installed the system at the International Center for Lightning Research and Testing (ICLRT), located in north-central Florida for 4 years and have succeeded in observing the lightning attachment processes for more than 100 return strokes contained either in rocket-triggered lightning and natural lightning discharges. We have analyzed those observed data and obtained several new findings on the lightning attachment processes, particularly, the return stroke initiation processes. Based on those results, we have proposed a new return stroke model by taking into account the return stroke initiation processes.
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Report
(5 results)
Research Products
(17 results)
