2013 Fiscal Year Final Research Report
Antarctic haze: occurrence, spatial distribution, and long-range transport from mid-latitudes
| 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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| Keywords | 南極ヘイズ / エアロゾル / 物質循環 / 海塩成分 / 海氷 |
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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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[Journal Article] Simultaneous aerosol measurements of unusual aerosol enhancement in troposphere over Syowa Station2014
Author(s)
Hara, K., Hayashi, M., Yabuki, M., Shiobara, M., and Nishita-Hara, C
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Journal Title
Antarctica, Atmos. Chem. Phys
Volume: 14
Pages: 4169-4183
Peer Reviewed
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[Journal Article] Haze episodes at Syowa Station, coastal Antarctica : Where did they come from?2010
Author(s)
Hara, K., K. Osada, M. Yabuki1, G. Hashida, T. Yamanouchi, M. Hayashi, M. Shiobara, C. Nishita-Hara, and M. Wada
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Journal Title
J. Geophys. Res
Volume: 115
Pages: D14205
DOI
Peer Reviewed
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