Faculty Profiles - OSADA, Kazuo

Papers - OSADA, Kazuo

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Mineral Dust Layers in Snow at Mt. Tateyama, Central Japan: Formation Processes and Characteristics Reviewed

K. Osada, H. Iida, M. Kido, K. Matsunaga, Y. Iwasaka

Tellus Vol. 56B page： 382-392 2004

Chemistry of sea-salt particles and inorganic halogen species in the Antarctic regions: Compositional differences between coastal and inland stations Reviewed

K. Hara, K. Osada, M. Kido, M. Hayashi, K. Matsunaga, Y. Iwasaka, T. Yamanouchi, G. Hashida, T. Fukatsu

J. Geophys. Res. Vol. 109 page： doi:10.1029/2004JD004713 2004

Seasonal variation of free tropospheric aerosol particles at Mt. Tateyama, central Japan Reviewed

Osada, K.; Kido, M.; Iida, H.; Matsunaga, K.; Iwasaka, Y.; Nagatani, M.; Nakada, H

J. Geophys. Res page： doi:10.1029/2003JD003544 2003

Number-size distributions of Atmospheric aerosol particles (10<Dp<265 nm) at Ny-Alesund, Norwegian Arctic: Their relationship with air mass history Reviewed

C. Nishita, K. Osada, K. Hara, M. Kido, M. Wada, T. Shibata, Y. Iwasaka

Polar Meteorol. Glaciol. Vol. 15 page： 67-77 2002

Changes in ionic constituents of free tropospheric aerosol particles obtained at Mt. Norikura (2770 m a. s. l.), central Japan, during the Shurin period in 2000 Reviewed

K. Osada, M. Kido, C. Nishita, K. Matsunaga, Y. Iwasaka, M. Nagatani, H. Nakada

Atmos. Environ. Vol. 36 page： 5469-5477 2002

Diurnal variatiion of ionic aerosol species and water-soluble gas concentrations at a high elevation site in the Japan Reviewed

Kido, M., K. Osada, K. Matsunaga, Y. Iwasaka

J. Geophys. Res. Vol. 106 page： 17335-17345 2001

Temporal change in ammonium/sulfate ratios for free tropospheric aerosols from early winter to spring at a high elevation site in the Japanese Alps Reviewed

Kido, M., K. Osada, K. Matsunaga, Y. Iwasaka

J. Environ. Chem. Vol. 11 page： 35-43 2001

Sulfate depletion in snow over sea ice near Syowa Station, Antarctica, in relation to the origin of sulfate depleted sea salt aerosol particles in winter Reviewed

K. Osada, K. Hara, M. Kido, H. Kai, T. Yamanouchi, G. Hashida, K. Matsunaga, Y. Iwasaka,

Polar Meteorol. Glaciol. Vol. 15 page： 21-31 2001

立山・室堂平の春季積雪に含まれる化学成分の深度分布 Reviewed

長田和雄・木戸瑞佳・飯田肇・矢吹裕伯・幸島司郎・川田邦夫・中尾正義

雪氷 Vol. 62 page： 3-14 2000

航空機と山岳大気観測から見た自由対流圏エアロゾル Invited

長田和雄

エアロゾル研究 Vol. 15 ( 4 ) page： 335-342 2000

Fractionation of inorganic nitrates in winter Arctic troposphere -Coarse aerosol particles containing inorganic nitrates- Reviewed

Hara, K., K. Osada, M. Hayashi, K. Matsunaga, Y. Iwasaka, K. Furuya

J. Geophys. Res. Vol. 104 page： 23671-23679 1999

Ionic constituents in aerosol particles at Syowa station, east Antarctica, during 1996 Reviewed

K. Osada, M. Hayashi, H. Ui, and Y. Iwasaka

Polar Meteorology and Glaciology Vol. 12 page： 49-57 1998

Dating of seasonal snow layers at Murodo, Mt. Tateyama, Japan Reviewed

Seppyo Vol. 59 ( 3 ) page： 181-188 1997

Variation of concentrations of sulface, methane sulfonate and sulfur dioxide at Ny-(]J1009[)lesund in 1995/96 winter Reviewed

Hara, K., K. Osada, M. Hayashi, K. Matsunaga and Y. Iwasaka

Proceedings of the NIPR Symposium on Polar Meteorolog and Glaciology Vol. 11 page： 127-137 1997

Major ionic and trace metal constituents in snow at Ester Dome, Fairbanks, Alaska Reviewed

Osada, K., K. Matsunaga, T. Shibata, H. Adachi and Y. Iwasaka

Journal of Geomagnetism and Geoelectricity Vol. 48 page： 1179-1188 1996

Methanesulfonate and non-sea-salt sulfate in drifting-snow from east Queen Maud Land, East Antarctica Reviewed

K. Osada

Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology Vol. 10 page： 111-118 1996

Ionic constituents in surface snow samples obtained by Antarctic Walk Expeditim, summer of 1992/93 Reviewed

Osada, K., K. Matsunaga, I. Mori, Y. Iwasaka, K. Yoshikawa

Journal of Geomagnetism and Geoelectricity Vol. 48 page： 1189-1196 1996

*A 10 Century comparison of prominent bipolar volcanic events in Ice Core Reviewed

Langway, C. C. Jr. , K. Osada, H. B. Clausen, C. U. Hammer, H. Shoji

Journal of Geophysical Research Vol. 100 page： 16241-16247 1995

Language：English Publishing type：Research paper (scientific journal)

Measurements of key chemical and physical parameters made along continuous and selected long sections of polar ice cores provide reliable past snow accumulation rates and other environmental records. The prime accumulation indicators include variations found in the stable isotopes, ionic constituents, and acidity concentration levels; and physical changes in the strata and structure. Cross correlations of the time series curves resulting from multiparameter analyses of ice cores from Antarctica (NBY89, SP78, BS68) and Greenland (CR74, D3 81, D3 18C) have been made. The results permit construction of a bipolar chemical stratigraphy chronology of volcanic events that is coherent with the δ18O and Electrical Conductivity Method data sets and consistent back-in-time with historically recorded volcanic activity. A bihemispheric comparison of high non-sea-salt SO2−4 peaks shows strong correlation at 1885, 1836, 1816, 1810, 1459, 1346, 1287, 1278, 1259, 1228, and 1168 A.D. at time of snow deposit. The prominent 1259 A.D. volcanic signal appears to be a significant bipolar ice core index horizon.

Seasonal variations of major ionic concentration levels in drifting-snow samples obtained from east Dronning Maud Land, East Autocratic Reviewed

K. Osada

Annals of Glaciology Vol. 20 page： 226-230 1994

New Chemical stratigraphy over the last millennium for Byrd Station, Antarctica Reviewed

Langway, C. C. Jr., K. Osada, H. B. Clausen, C. U. Hammer, H. Shoji and A. Mitani

Tellus Vol. 46B page： 40-51 1994

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