| Project/Area Number |
25242028
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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 |
Geography
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| Research Institution | Teikyo University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
森島 済 日本大学, 文理学部, 教授 (10239650)
日下 博幸 筑波大学, 生命環境科学研究科(系), 准教授 (10371478)
高橋 日出男 首都大学東京, 都市環境科学研究科, 教授 (40202155)
赤坂 郁美 専修大学, 文学部, 准教授 (40574140)
平野 淳平 帝京大学, 文学部, 講師 (80567503)
佐藤 英人 高崎経済大学, 地域政策学部, 准教授 (00396798)
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| Co-Investigator(Renkei-kenkyūsha) |
SAKAI Shin-ichi 東京大学, 地震研究所, 准教授 (00251455)
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| Research Collaborator |
YAMATO Hiroaki
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| Project Period (FY) |
2013-10-21 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥42,380,000 (Direct Cost: ¥32,600,000、Indirect Cost: ¥9,780,000)
Fiscal Year 2016: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Fiscal Year 2015: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Fiscal Year 2014: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Fiscal Year 2013: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
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| Keywords | ヒートアイランド / 東京 / 局地的豪雨 / 気温 / 観測 / 都市気候 / 気圧 / 気候学 / 豪雨 |
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| Outline of Final Research Achievements |
We made an attempt at clarifying the relationship between thermal lows and localized torrential rainfalls in Tokyo Metropolitan Area based on the high-density temperature and air pressure observation system which we developed since 2006. As a result of Principal Component Analysis for the summer temperature and pressure data matrices in Kanto region, typical spatial patterns which related to the sea-land breeze circulations, urban heat islands and north-easterlies were detected.
A case study on the localized torrential rainfall indicated that lowering and increasing trend of air pressures around heavy rainfall area occurred, where high temperatures and moist air penetration from sea-breeze were observed. Finally, “Weather Research & Forecasting ( WRF )” model were applied to detect the urban effect due to heat islands. The results show increasing rainfall in urban area during the night in summer.
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