On Wednesday, September 27, from 9:30 a.m. to 12:00 p.m./noon (USA Mountain Time), AMSR-E, Aquarius, IceBridge, ICESat/GLAS, MEaSUREs, MODIS, NISE, SMAP, and VIIRS data will not be available due to system maintenance.

Get Data


Data can be downloaded through a Web browser or command line via FTP. When using a Web browser, the FTP link first directs you to an Optional Registration Form that if filled out, will allow you to receive notifications about updates or processing changes related to that specific data set. After completing the Optional Registration Form, the FTP directory becomes available. For additional help downloading data through an FTP client, go to the How to access data using an FTP client support page.


Data Set ID:

Central West Antarctic Glaciochemistry from Ice Cores, Version 1

Glaciochemical and accumulation rate records developed from four ice cores in central West Antarctica are used to reconstruct former atmospheric circulation patterns in this region for the last 40 years with extended records (150-250 years) at two sites. The sites lie on a 200 km traverse from 82 degrees 22 minutes south, 119 degrees 17 minutes west to 81 degrees 22 minutes south, 107 degrees 17 minutes west, gaining elevation from 950 to 1930 m. The glaciochemical records represent the major ionic species present in Antarctic snow: sodium, potassium, magnesium, calcium, chloride, nitrate, and sulfate.

Geographic Coverage

  • Ice Core Records > Ions > Glaciochemistry
  • Snow/Ice > Snow Water Equivalent
Spatial Coverage:
  • N: -80, S: -85, E: -105, W: -120

Spatial Resolution: Not Specified
Temporal Coverage:
  • 1 January 1740 to 31 December 1994
  • 1 January 1994 to 31 December 1995
Temporal Resolution: Not specified
Data Format(s):
  • ASCII Text
Version: V1
Data Contributor(s): David Reusch
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.

Reusch, D. 2003. Central West Antarctic Glaciochemistry from Ice Cores, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: http://dx.doi.org/10.7265/N5959FHQ. [Date Accessed].

Back to Top

Collapse All / Open All

Detailed Data Description

Central West Antarctic Glaciochemistry from Ice Cores

The glaciochemical records represent the major ionic species present in Antarctic snow: Na+, K+, Mg2+, Ca2+, Cl-, NO3- and SO42-.

Table 1. Columns for the Central West Antarctic Glaciochemistry Data Files
Column 1 Top Depth (in meters)
Column 2 Bottom Depth (in meters)
Column 3 Top Time (in years before 2000 A.D.)
Column 4 Bottom Time (in years before 2000 A.D.)
Column 5 Mid Year (decimal year of midpoint of the specific section of core)
Column 6 Na+     Sodium (ppb - parts per billion)
Column 7 K+     Potassium (ppb)
Column 8 Mg2+     Magnesium (ppb)
Column 9 Ca2+     Calcium (ppb)
Column 10 Cl-     Chloride (ppb)
Column 11 NO3-     Nitrate (ppb)
Column 12 SO42-     Sulfate (ppb)

Figure 1 describes the approximate locations of ice cores plotted on a contour map covering the region 80-85 S latitude by 105-120 W longitude.

Figure 1. Locations of Ice Cores Plotted on a Contour Map
Background color on

References and Related Publications

No technical references available for this data set.
No FAQs or How Tos available for this data set.

Access complete Knowledge Base

Questions? Please contact:
NSIDC User Services
Phone: 1 303 492-6199
Email: nsidc@nsidc.org