Faculty Profiles - OSADA, Kazuo

Papers - OSADA, Kazuo

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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

Background levels of formate and other ions in ice cores from inland Greenland. Reviewed

K. Osada & C. C. Langway, Jr.

Geophysical Research Letters Vol. 20 page： 2647-2650 1993

Transport rate of Na⁺, Cl^-, NO^-₃ and SO^2-₄ by drifting snow at Mizuho Station, Antarctica. Reviewed

Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology Vol. 3 page： 43-50 1990

Chemical composition of snow drift on Mizuho Plateau, Antarctica. Reviewed

Osada, K., H. Ohmae, F. Nishio, K. Higuchi and S. Kanamori

Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology Vol. 2 page： 70-78 1989

Sea salt in deposited snow and sea ice and snow drift Reviewed Open Access

Antarctic Research Vol. 32 page： 17-24 1988

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Papers - OSADA, Kazuo