| Co-Investigator(Kenkyū-buntansha) |
三上 岳彦 東京都立大学, 都市環境科学研究科, 客員教授 (10114662)
森島 済 日本大学, 文理学部, 教授 (10239650)
赤坂 郁美 専修大学, 文学部, 教授 (40574140)
菅原 広史 防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工学群), 応用科学群, 教授 (60531788)
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| Budget Amount *help |
¥43,160,000 (Direct Cost: ¥33,200,000、Indirect Cost: ¥9,960,000)
Fiscal Year 2021: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2020: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2019: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2018: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2017: ¥21,060,000 (Direct Cost: ¥16,200,000、Indirect Cost: ¥4,860,000)
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| Outline of Final Research Achievements |
This study aims to clarify the three-dimensional structure of the urban atmosphere in the Tokyo metropolitan area by combining the dense surface meteorological observation and the vertical temperature observation using temperature profilers. The lower atmosphere in central Tokyo generally shows weak stability, but at night in winter, the vertical temperature distribution in central Tokyo and the temperature difference between central Tokyo and the suburbs change in response to the temperature inversion in the suburbs. The descending air motion from the upper atmosphere is suggested during a strong temperature inversion in the suburbs, and it is necessary to investigate the relationship with the heat island circulation. It has been pointed out that the boundary layer structure in central Tokyo in the afternoon and night may involve high-temperature air migrating eastward from the central mountainous area, and the accompanying cyclonic vortex may be related to the nighttime land breeze.
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