| Project/Area Number |
22310013
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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 | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Fukuoka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
HAYSHI Masahiko 福岡大学, 理学部, 教授 (50228590)
SHIOBARA Masataka 国立極地研究所, 気水圏, 准教授 (60291887)
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| Co-Investigator(Renkei-kenkyūsha) |
HASHIDA Gen 国立極地研究所, 気水圏, 准教授 (00280537)
MORIMOTO Shinji 東北大学, 大学院理学研究科, 教授 (30270424)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2010: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
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| Keywords | 南極ヘイズ / エアロゾル / 物質循環 / 海塩成分 / 海氷 / 南極 / 長距離輸送 / バイオマス燃焼 |
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| Research Abstract |
To understand physical/chemical properties, spatial distributions, and frequency of haze appearance, simultaneous measurements of aerosols and gasses were made at Syowa Station, Antarctica. Haze episodes attribute mainly to release of sea-salt particles from sea-ice surface under strong winds. Because the haze phenomena were identified often in July-September, seasonal features of haze appearance might relate to sea-ice extent. Haze layers were distributed mainly in surface-ca. 2 km above ground. In the largest haze conditions, haze layer appeared in surface-ca. 4 km over Syowa Station. After polar sunrise (August-October), surface ozone depletion occurred in the haze phenomena. Thus, Antarctic haze might have an important role in atmospheric chemistry in Antarctic regions.
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