Chemistry of sea-salt particles and sea-salt fractionation in Antarctic region
Observations of aerosol constituents and acidic gases were carried out at Syowa Station (1997-1998 and 2003-2006; JARE-38~ 39, and JARE-44~ 47) and Dome Fuji Station (1997, JARE-38). Seasonal variations and size distribution of sea-salt particles were compared between coastal and inland stations. Se...
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National Institute of Polar Research
2010
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fttriple:oai:gotriple.eu:oai:doaj.org/article:a3e498027612463ea1523adb7fb65f0b 2023-05-15T13:56:24+02:00 Chemistry of sea-salt particles and sea-salt fractionation in Antarctic region Keiichiro Hara Kazuo Osada Masahiko Hayashi Masanori Yabuki Gen Hashida Takashi Yamanouchi 2010-12-01 https://doi.org/10.15094/00009579 https://doaj.org/article/a3e498027612463ea1523adb7fb65f0b en other eng National Institute of Polar Research doi:10.15094/00009579 0085-7289 2432-079X https://doaj.org/article/a3e498027612463ea1523adb7fb65f0b undefined Antarctic Record, Vol 54, Iss special issue, Pp 668-696 (2010) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2010 fttriple https://doi.org/10.15094/00009579 2023-01-22T18:02:15Z Observations of aerosol constituents and acidic gases were carried out at Syowa Station (1997-1998 and 2003-2006; JARE-38~ 39, and JARE-44~ 47) and Dome Fuji Station (1997, JARE-38). Seasonal variations and size distribution of sea-salt particles were compared between coastal and inland stations. Seasonal variations of the concentrations of sea-salt particles showed a minimum in the austral summer and higher during the winter at both stations due to strong winds and long-range transport. Sea-salt particles were mostly distributed in fine (D_p: 0.2-2.0 μm) and ultra-fine (D_p and below the detection limit (BDL)-1.5 nmol m^, respectively. Sea-salt fractionation (SO_4^ depletion) due to Mirabilite formation was identified not only at Syowa Station but also at Dome Fuji Station. Seasonal variation of molar ratio of Mg^ Na^+ showed higher ratios at lower temperature. The range and temperature dependence of Mg^ Na^+ strongly suggested that other sea-salt fractionation (e.g., formation of gypsum and hydrohalite) occurred in the Antarctic coasts in addition to Mirabilite formation. Because of different seasonal variation and range of Mg^ Na^+ between Dome Fuji and Syowa Stations, sea-salt fractionation may proceed even in the inland area. Article in Journal/Newspaper Antarc* Antarctic Unknown Antarctic Austral Dome Fuji ENVELOPE(39.700,39.700,-77.317,-77.317) Dome Fuji Station ENVELOPE(39.703,39.703,-77.317,-77.317) Syowa Station The Antarctic |
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Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir Keiichiro Hara Kazuo Osada Masahiko Hayashi Masanori Yabuki Gen Hashida Takashi Yamanouchi Chemistry of sea-salt particles and sea-salt fractionation in Antarctic region |
topic_facet |
geo envir |
description |
Observations of aerosol constituents and acidic gases were carried out at Syowa Station (1997-1998 and 2003-2006; JARE-38~ 39, and JARE-44~ 47) and Dome Fuji Station (1997, JARE-38). Seasonal variations and size distribution of sea-salt particles were compared between coastal and inland stations. Seasonal variations of the concentrations of sea-salt particles showed a minimum in the austral summer and higher during the winter at both stations due to strong winds and long-range transport. Sea-salt particles were mostly distributed in fine (D_p: 0.2-2.0 μm) and ultra-fine (D_p and below the detection limit (BDL)-1.5 nmol m^, respectively. Sea-salt fractionation (SO_4^ depletion) due to Mirabilite formation was identified not only at Syowa Station but also at Dome Fuji Station. Seasonal variation of molar ratio of Mg^ Na^+ showed higher ratios at lower temperature. The range and temperature dependence of Mg^ Na^+ strongly suggested that other sea-salt fractionation (e.g., formation of gypsum and hydrohalite) occurred in the Antarctic coasts in addition to Mirabilite formation. Because of different seasonal variation and range of Mg^ Na^+ between Dome Fuji and Syowa Stations, sea-salt fractionation may proceed even in the inland area. |
format |
Article in Journal/Newspaper |
author |
Keiichiro Hara Kazuo Osada Masahiko Hayashi Masanori Yabuki Gen Hashida Takashi Yamanouchi |
author_facet |
Keiichiro Hara Kazuo Osada Masahiko Hayashi Masanori Yabuki Gen Hashida Takashi Yamanouchi |
author_sort |
Keiichiro Hara |
title |
Chemistry of sea-salt particles and sea-salt fractionation in Antarctic region |
title_short |
Chemistry of sea-salt particles and sea-salt fractionation in Antarctic region |
title_full |
Chemistry of sea-salt particles and sea-salt fractionation in Antarctic region |
title_fullStr |
Chemistry of sea-salt particles and sea-salt fractionation in Antarctic region |
title_full_unstemmed |
Chemistry of sea-salt particles and sea-salt fractionation in Antarctic region |
title_sort |
chemistry of sea-salt particles and sea-salt fractionation in antarctic region |
publisher |
National Institute of Polar Research |
publishDate |
2010 |
url |
https://doi.org/10.15094/00009579 https://doaj.org/article/a3e498027612463ea1523adb7fb65f0b |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) ENVELOPE(39.703,39.703,-77.317,-77.317) |
geographic |
Antarctic Austral Dome Fuji Dome Fuji Station Syowa Station The Antarctic |
geographic_facet |
Antarctic Austral Dome Fuji Dome Fuji Station Syowa Station The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Antarctic Record, Vol 54, Iss special issue, Pp 668-696 (2010) |
op_relation |
doi:10.15094/00009579 0085-7289 2432-079X https://doaj.org/article/a3e498027612463ea1523adb7fb65f0b |
op_rights |
undefined |
op_doi |
https://doi.org/10.15094/00009579 |
_version_ |
1766263907571204096 |