[Location: Location_Category='CONTINENT', Location_Type='ANTARCTICA']
US International Trans-Antarctic Scientific Expedition (US ITASE) Glaciochemical DataEntry ID: NSIDC-0273
Abstract: Sub-annually resolved ice core chemistry data from various sites on the Antarctic Ice Sheet were obtained from 1999 to 2008 during the US International Trans-Antarctic Scientific Expedition (US ITASE) deployments. Researchers conducted experiments approximately every 100-300 km looking for clues representing climatic conditions over the past 200-1000+ years. Ice cores, ... obtained for the ... glaciochemical component of the US ITASE research, were analyzed for soluble major ion content and in some cases trace elements. At each site, a ~3-inch diameter ice core was drilled to depths as great as 120 m. Surface snow samples were collected every ~10-40 km. High-resolution chemical analysis (up to ~75 measurements per meter) was used to define each core-chemistry year based on peaks in Na+, Ca2+, Mg2+, K+, NH4+, Cl-, NO3-, SO42-, CH3SO3- (methylsulfonate), and in some cases trace elements.
Purpose: Extreme events such as volcanic eruptions provide absolute age horizons with in each core that are easily identified in chemical profiles. Our chemical analysis is also useful for quantifying anthropogenic impact, biogeochemical cycling, and for reconstructing past atmospheric circulation patterns. Core-chemistry tab-delimited text files, an accumulation rate Excel file, an Antarctic location map (GIF format), and a table of information for each core (GIF format) are available via FTP.
Directly related to National Science Foundation (NSF) Office of Polar Programs (OPP) awards OPP-9725057 and OPP-0837883.
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Data Set Citation
Dataset Originator/Creator: Daniel A Dixon
Dataset Title: US International-Trans Antarctic Scientific Expedition (ITASE) Glaciochemical Data, 1999-2001
Dataset Series Name: US ITASE
Dataset Release Date: 2005-08-15
Dataset Release Place: Boulder, CO
Dataset Publisher: National Snow and Ice Data Center (NSIDC)
Start Date: 1999-01-01Stop Date: 2001-12-31
Access Constraints None
Use Constraints None
Data Set Progress
Distribution Media: FTP
Distribution Format: ASCII, Excel
Phone: 207 581 2112
Fax: 207 581 1203
Email: daniel.dixon at maine.edu
University of Maine Department of Earth Sciences 5764 Sawyer Environmental Research Building
Province or State: Maine
Postal Code: 04469-5790
Email: paul.mayewski at maine.edu
Email: climatechange at maine.edu
Email: usitase at maine.edu
Climate Change Institute Department of Earth Sciences University of Maine 303 Bryand Global Science Building
Province or State: ME
Postal Code: 04469-5790
Country: United States
All data users may copy, distribute, display and perform work and make derivative works based on it only if they give the author and data owner credit as outlined below. Data users must cite the following publications whenever using any part of these data, unless other usage terms have been negotiated and agreed upon with the data set owner...
Bertler, N., Mayewski, P.A., Alberto Aristarain, ... P.Barrett, S.Becagli, Ronaldo Torma Bernardo, Xiao Cunde, M.Curran, Qin Dahe, D.Dixon, Francisco Adolfo Ferron, H. Fischer, Markus Frey, M.Frezzotti, F. Fundel, Christophe Genthon, R.Gragani, G.Hamilton, M.Handley, Sungmin Hong, E.Isaksson, Ren Jiawen, Kokichi Kamiyama, Satoru Kanamori, Eija Karkas, L.KarlÂf, S.Kaspari, K.Kreutz, A.Kurbatov, E.Meyerson, Hideaki Motoyama, R. Mulvaney, Zhang Mingjun, H.Oerter, E.Osterberg, M.Proposito, A.Pyne, U.Ruth, Jefferson Cardia Simoes, B.Smith, S.Sneed, Kimmo Teinila, F. Traufetter, R.Udisti, Aki Virkkula, Okitsugu Watanabe, B.Williamson, E. Wolff, Li Zhongqin, 2006, Snow chemistry across Antarctica, Annals of Glaciology 41, 167-179.
Dixon, D., Mayewski, P.A., Kaspari, S., Sneed, S., and Handley, M., 2004, A 200 year sub annual record of the primary sources of sulfate in West Antarctica, Annals of Glaciology 39, 545-556.
Dixon, D., Mayewski, P.A., Kaspari, S., Sneed, S. and Handley, M., 2005, Connections between West Antarctic ice core sulfate and climate over the last 200+ years, Annals of Glaciology 41, 155-156.
Kaspari, S., Mayewski, P.A., Dixon, D., Spikes, V.B., Sneed, S.B., Handley, M.J., and Hamilton, 2004, Climate variability in West Antarctica derived from annual accumulation rate records from ITASE firn/ice cores, Annals of Glaciology 39, 585-594.
Kaspari, S., Mayewski, P.A., Dixon, D., Sneed, S.B., and Handley, M.J., 2005, Sources and transport pathways for marine aerosol species into West Antarctica, Annals of Glaciology 42, 1-9.
Mayewski, P.A., K. A. Maasch, J.W.C. White, E. Meyerson, I. Goodwin, V.I. Morgan., T. van Ommen, M.A.J. Curran, J. S
ouney, and K. Kreutz, 2005, A 700 year record of Southern Hemisphere extra-tropical climate variability, Annals of Glaciology 39, 127-132.
Mayewski, P.A., Frezzotti, M., Bertler, N., van Ommen, T., Hamilton, G.H., Jacka, J., Welch, B., Frey, M., Dahe, Q., Ren, J., Simoes, J., Fily, M., Oerter, H., Nishio, F., Iasaksson, E., Mulvaney, R., Holmund, P., Lipenkov, V. and Goodwin, I., 2006, The International Trans-Antarctic Scientific Expedition (ITASE) - An Overview, Annals of Glaciology 41, 180-185.
Mayewski, P.A., Maasch, K., Yan, Y., Kang, S., Meyerson, E., Sneed, S., Kaspari, S., Dixon, D., Morgan, V., van Ommen, T., and Curran, M., 2006, Solar forcing of the polar atmosphere, Annals of Glaciology 41, 147-154.
Mayewski, P.A. and Maasch, K., 2006, Recent warming inconsistent with natural association between temperature and atmospheric circulation over the last 2000 years, Climate of the Past (Discussions), on line: http://www.copernicus.org/EGU/cp/cpd/2/327/cpd-2-327.htm.
Reusch, D. B., P. A. Mayewski, S. I. Whitlow, I. I. Pittalwala and M.S. Twickler (1999). Spatial Variability of Climate and Past Atmospheric Circulation Patterns from Central West Antarctic Glaciochemistry. Journal of Geophysical Research 104(D6): 5985-6001.
Steig, E.J., P.A. Mayewski, D. Dixon, S. Kaspari, M. Frey, D.P. Schneider, S.A. Arcone, G. Hamilton, B. Spikes, M.R. Albert, D.A. Meese, A. Gow, C.A. Shuman, J. White, S. Sneed, J. Flaherty, M. Wumkes and US ITASE Project Members, 2006, High-resolution ice cores from US ITASE (West Antarctica): development and validation of chronologies and determination of precision and accuracy, Annals of Glaciology 41, 77-84.
Yan, Y., Mayewski, P.A., Kang, S., and Meyerson, E., 2005, An ice core proxy for Antarctic circumpolar wind intensity, Annals of Glaciology 41, 121-130.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2005-08-15
Last DIF Revision Date: 2013-06-26