Get Data

DOWNLOADING DATA VIA FTP

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.

FTP

Data Set ID:
NSIDC-0129

Siple Shallow Core Density Data, Version 1

This data set is part of the WAISCORES project, an NSF-funded project to understand the influence of the West Antarctic ice sheet on climate and sea level change. WAISCORES researchers acquired and analyzed ice cores from the Siple Dome, in the Siple Coast region, West Antarctica.

Lamorey measured the density of the shallow Siple Dome cores B - I. One-meter sections of the ice core were weighed on a balance beam in the field. The volume was determined by measuring the diameter and length of the core. The data consists of tab-delimited text files of density measurements and a sonic velocity profile, and a .gif format density-versus-depth plot. Data are available via FTP.

Geographic Coverage

Spatial Coverage:
  • N: -81, S: -81, E: -149, W: -149

Spatial Resolution: Not Specified
Temporal Coverage:
  • 1 January 1996 to 31 December 2000
Temporal Resolution: Not specified
Parameter(s):
  • Glaciers/Ice Sheets > Glacier Thickness/Ice Sheet Thickness
  • Ice Core Records
  • Snow/Ice > Ice Depth/Thickness
  • Glaciers/Ice Sheets > Ice Sheets
  • Snow/Ice > Snow Density
  • Snow/Ice > Snow Depth
  • Snow/Ice > Snow/Ice Chemistry
Platform(s) GROUND STATIONS, GROUND-BASED OBSERVATIONS
Sensor(s): CORING DEVICES
Data Format(s):
  • GIF
  • ASCII Text
Version: V1
Data Contributor(s): Gregg Lamorey

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.

Gregg W. Lamorey 2003. Siple Shallow Core Density Data, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: http://dx.doi.org/10.7265/N52F7KCD. [Date Accessed].

Back to Top

Collapse All / Open All

Detailed Data Description

Shallow Core Density Metadata

The density of the shallow ice cores were measured in the field. Approximately 1 meter long sections of the ice core were weighed on a balance beam after bagging the core and prior to storing in core tubes. The volume was determined by measuring the diameter and length of the core. The diameter was measured at three representative locations along the core with a pair of calipers, and the length was measured with either a meter ruler or a scale mounted on the saw apparatus. Average lengths were used for core with angled breaks on the ends.

The balance beam measurements were recorded to the gram, but these measurements were repeatable to about 4 grams. The diameters were recorded to the 0.01 mm but were repeatable to about 0.05 mm. The lengths were measured to the 1 mm and were repeatable to to about 1 mm. The largest source of error is likely due to cross sections that are not circular because of missing core caused by core dog gouges and breaks in the core. This is the most likely cause of the occasional low values on the density plots. Missing core is noted in the logbook.

Background color on

Software and Tools

Background color on

Data Acquisition and Processing

Background color on
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