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Data Set ID:
NSIDC-0520

Ice Core Chemistry from the Norwegian-U.S. Scientific Traverse of East Antarctica, IPY 2007-2009, Version 1

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.

Data are available via FTP.

Geographic Coverage

Spatial Coverage:
  • N: -73.7, S: -82.8, E: -1.6, W: -54.9

Spatial Resolution: Not Specified
Temporal Coverage:
  • 19 October 2007 to 21 September 2009
Temporal Resolution: Not specified
Parameter(s):
  • Glaciers/Ice Sheets > Ablation Zones/Accumulation Zones
  • Ice Core Records
  • Glaciers/Ice Sheets > Ice Sheets
  • Snow/Ice > Snow/Ice Chemistry
  • Ice Core Records > Volcanic Deposits
Platform(s) GROUND-BASED OBSERVATIONS, LABORATORY
Sensor(s): FLUOROMETERS, MASS SPECTROMETERS, SPECTROPHOTOMETERS
Data Format(s):
  • Microsoft Excel
Version: V1
Data Contributor(s): Joseph McConnell

Data Citation

As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Joseph R. McConnell 2012. Ice Core Chemistry from the Norwegian-U.S. Scientific Traverse of East Antarctica, IPY 2007-2009, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: http://dx.doi.org/10.7265/N5H41PC9. [Date Accessed].

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Detailed Data Description

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.

Format

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.

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File and Directory Structure

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.

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File Size

The data file (.xlsx) is approximately 718 KB.

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Spatial Coverage
  • Northernmost Latitude: 73.7° S
  • Southernmost Latitude: 82.8° S
  • Westernmost Longitude: 1.6° W
  • Easternmost Longitude: 54.9° W

Spatial Resolution

Seven core sites at various locations along the Norwegian-U.S. Scientific Traverse of East Antarctica, IPY 2007-2009.

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Temporal Coverage

Approximately -100 C.E. to 2009 C.E. Ice cores were recovered during the IPY 2007-2009.

Temporal Resolution

Samples represent 2 cm average concentrations. A depth-age model will be provided at a later date.

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Parameter or Variable

Na and Mg, 2 cm average concentrations in nanograms per gram (parts per billion).

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Data Acquisition and Processing

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.

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Quality Assessment

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.

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References and Related Publications

Contacts and Acknowledgments

Joseph R. McConnell
Desert Research Institute
Division of Hydrologic Sciences
2215 Raggio Parkway
Reno, NV 89512

Acknowledgements: 

This research was supported by National Science Foundation Office of Polar Programs grant number 0538416.

Document Information

Document Creation Date

August 2012

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