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This data set consists of sodium (Na) and magnesium (Mg) concentrations versus depth in seven ice cores that were obtained by the Norwegian-U.S. Scientific Traverse of East Antarctica during the International Polar Year (IPY) 2007-2009. Additional glaciochemical analyses and a final depth-age scale will be added as these data become available.
The following example shows how to cite the use of this data set in a publication:
Mcconnell, J. R. 2012. Ice Core Chemistry from the Norwegian-U.S.A. Scientific Traverse of East Antarctica, IPY 2007-2009. Boulder, Colorado USA: National Snow and Ice Data Center. Digital media.
Northernmost Latitude: 73.7° S
Varies (7 core sites along traverse)
Approximately -100 C.E. to 2009 C.E. (cores obtained IPY 2007-2009)
2 cm average concentrations (no depth-age model provided)
Na concentration (ng/g, ppb)
Microsoft Excel Workbook (.xlsx)
Joseph R. McConnell
Desert Research Institute
Division of Hydrologic Sciences
2215 Raggio Parkway
Reno, NV 89512
NSIDC User Services
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder, CO 80309-0449 USA
phone: +1 303.492.6199
fax: +1 303.492.2468
form: Contact NSIDC User Services
This research was supported by National Science Foundation Office of Polar Programs grant number 0538416.
This data set currently consists of sodium (Na) and magnesium (Mg) concentrations versus depth in seven ice cores that were obtained by the Norwegian-U.S. Scientific Traverse of East Antarctica during the International Polar Year 2007-2009. Additional glaciochemical analyses and a final depth-age scale will be added as the data become available.
Data are provided as a Microsoft Excel workbook file (.xlsx) that comprises seven worksheets, one for each core site. Each worksheet also contains the site name and collection date, and the latitude, longitude, and elevation of the location.
Data are available on the FTP site in the ftp://sidads.colorado.edu/pub/DATASETS/AGDC/nsidc0520_mcconnell_V01/ directory. This directory contains the data file NORUS_Prelim_Database_042312.xlsx and a readme file.
The data file (.xlsx) is approximately 718 KB.
Seven core sites at various locations along the Norwegian-U.S. Scientific Traverse of East Antarctica, IPY 2007-2009.
Approximately -100 C.E. to 2009 C.E. Ice cores were recovered during the IPY 2007-2009.
Samples represent 2 cm average concentrations. A depth-age model will be provided at a later date.
Na and Mg, 2 cm average concentrations in nanograms per gram (parts per billion).
Files may be downloaded via FTP and accessed using standard spreadsheet software.
Ice cores were collected using an 8 cm diameter Eclipse electromechanical drill, owned and operated by Ice Drilling Design and Operations, and shipped to the National Ice Core Lab in Denver, CO, where they were cut into four parallel, longitudinal samples, each with a cross-section of approximately 3.4 cm by 3.4 cm.
The samples were shipped to the Desert Research Institute, Reno, NV and analyzed for approximately 35 elements and chemical species. Analyses were performed with a continuous ice-core melter coupled to two high-resolution inductively coupled plasma mass spectrometers, an SP2 black carbon analyzer, and a range of fluorimeters and spectrophotometers. See McConnell et al. (2002) for a description of an earlier version of this analytical method. See McConnell et al. (2007a), McConnell et al. (2007b), and McConnell and Edwards (2008) for brief descriptions and example results of the current analytical system.
Uncertanties depend on the parameter being measured but are typically between 0.1 percent and 5.0 percent of the mean measured concentration in the core.
Anschütz, H., A. Sinisalo, E. Isaksson, J. R. McConnell, S.-E. Hamran, M. M. Bisiaux, D. Pasteris, T. A. Neumann, and J.-G. Winther. 2011. Variation of Accumulation Rates over the Last Eight Centuries on the East Antarctic Plateau Derived from Volcanic Signals in Ice Cores, Journal of Geophysical Research, 116(D20103), doi: 10.1029/2011JD015753.
Anschütz, H., K. Müller, E. Isaksson, J. R. McConnell, H. Fischer, H. Miller, M. Albert, and J.-G. Winther. 2009. Revisiting Sites of the South Pole Queen Maud Land Traverses in East Antarctica: Accumulation Data from Shallow Firn Cores, Journal of Geophysical Research, 114(D24106), doi: 10.1029/2009JD012204.
Bisiaux, M. M., R. Edwards, J. R. McConnell, M. R. Albert, H. Anschütz, T. A. Neumann, E. Isaksson, and J. E. Penner. 2012. Variability of Black Carbon Deposition to the East Antarctic Plateau, 1800-2000 AD, Atmospheric Chemistry and Physics, 12, 3799-3808, doi: 10.5194/acp-12-3799-2012.
McConnell, J. R. and R. Edwards. 2008. Coal Burning Leaves Toxic Heavy Metal Legacy in the Arctic. Proceedings of the National Academy of Sciences, 105 (34), 12140-12144, doi: 10.1073/pnas.0803564105.
McConnell, J. R., A. J. Aristarain, R. J. Banta, P. R. Edwards, and J. C. Simoes. 2007a. 20th-Century Doubling in Dust Archived in an Antarctic Peninsula Ice Core Parallels Climate Change and Desertification in South America, Proceedings of the National Academy of Sciences, 104(14), 5743-5748, doi: 10.1073/pnas.0607657104.
McConnell, J. R., R. Edwards, G. L. Kok, M. G. Flanner, C. S. Zender, E. S. Saltzman, J. R. Banta, D. R. Pasteris, M. M. Carter, and J. D. W. Kahl. 2007b. 20th-Century Industrial Black Carbon Emissions Altered Arctic Climate Forcing, Science, 317(5843), 1381-1384, doi: 10.1126/science.1144856.
McConnell J. R., G. W. Lamorey, S. W. Lambert, and K. C. Taylor. 2002. Continuous Ice-Core Chemical Analyses Using Inductively Coupled Plasma Mass Spectrometry, Environmental Science & Technology, 36(1), 7-11, doi: 10.1021/es011088z.
Müller, K., A. Sinisalo, H. Anschütz, S.-E. Hamran, J.-O Hagen, J. R. McConnell, and D. R. Pasteris. 2010. An 860 km Surface Mass-Balance Profile on the East Antarctic Plateau Derived by GPR, Annals of Glaciology, 51(55), 1-8, doi: 10.3189/172756410791392718.
The acronyms used in this document are listed in Table 4.
|IPY||International Polar Year|
|ppb||Parts per Billion|
|AGDC||Antarctic Glaciological Data Center|
|NSIDC||National Snow and Ice Data Center|
|FTP||File Transfer Protocol|