Greenland Ice Core Project (GRIP) Dielectric Profiling (DEP) Data, NOAA/NCDC, WDC Paleoclimatology
Entry ID: NGDC_WDCA_GRIP_DEP

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Summary
Abstract: This data set contains dielectric profiling (DEP) data from the Greenland Ice
Core Project (GRIP) ice core drilled at Summit, Greenland between 1990 and
1992. The data consists of depth (m) and sigma infinity (microsiemens/m).
Sigma infinity is the high-frequency limit of the conductivity, corrected to
-15 degrees C. The data start at 138 meters below the surface and continue to
the bottom of the core. Although a timescale is not given for the data, the
data extend to about 110 kyr BP.

For more information see:
ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/grip/ecm/

NOTE: PLEASE CITE ORIGINAL REFERENCES WHEN USING THIS DATA!

Related URL
Link: VIEW RELATED INFORMATION
Description: Access to GRIP and GISP data


Geographic Coverage
 N: 73.0 S: 72.0  E: -37.0  W: -38.0

Data Set Citation
Dataset Originator/Creator: Wolff, E.
Dataset Title: GRIP Ice Core Dielectric Profiling Data
Dataset Series Name: IGBP PAGES/WDC Paleoclimatology Data Contribution Series #95-010
Dataset Release Date: 1995
Dataset Release Place: Boulder, CO
Dataset Publisher: NOAA/NCDC Paleoclimatology Program
Issue Identification: 95-010
Online Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gri...


Temporal Coverage
Start Date: 1990-01-01
Stop Date: 1992-12-31


Paleo_Temporal_Coverage
Chrono Unit:


Location Keywords
CONTINENT > NORTH AMERICA > GREENLAND
GEOGRAPHIC REGION > POLAR


Science Keywords
PALEOCLIMATE >ICE CORE RECORDS >IONS    [Definition]
CRYOSPHERE >SNOW/ICE >SNOW/ICE CHEMISTRY >IONS    [Definition]
CRYOSPHERE >SNOW/ICE >SNOW/ICE CHEMISTRY    [Definition]
TERRESTRIAL HYDROSPHERE >SNOW/ICE >SNOW/ICE CHEMISTRY    [Definition]
TERRESTRIAL HYDROSPHERE >SNOW/ICE >SNOW/ICE CHEMISTRY >IONS    [Definition]
PALEOCLIMATE >ICE CORE RECORDS >ELECTRICAL PROPERTIES    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION
INLAND WATERS


Platform
GROUND STATIONS    [Information]


Project
GRIP >Greenland Ice Core Project    [Information]
ESIP >Earth Science Information Partners Program    [Information]


Keywords
CLIMATE
CONDUCTIVITY
DEP
DIELECTRIC PROFILING
GREENLAND
GRIP
ICE
ICE CAP
ICE CHEMISTRY
ICE CORE
ICE CORES
PALEOCLIMATE
PALEOENVIRONMENT
QUATERNARY
SIGMA INFINITY


Data Set Progress
COMPLETE


Originating Center
NOAA/NESDIS/NGDC


Data Center
World Data Center for Paleoclimatology, Boulder    [Information]
Data Center URL: http://www.ncdc.noaa.gov/paleo/

Data Center Personnel
Name: WDC/PALEOCLIMATOLOGY, BOULDER
Phone: +1 (303) 497-6160
Fax: +1 (303) 497-6513
Email: paleo at noaa.gov
Contact Address:
World Data Center for Paleoclimatology
NOAA/NCDC Code E/GCx3
325 Broadway
City: Boulder
Province or State: CO
Postal Code: 80303
Country: USA



Distribution
Distribution_Media: online ftp
Distribution_Size: 99KB
Distribution_Format: ASCII
Fees: None


Personnel
ERIC WOLFF
Role: INVESTIGATOR
Email: ewwo at bas.ac.uk
Contact Address:
British Antarctic Survey
CAMBRIDGE
CB3 OET
City: High Cross
Province or State: Madingley Road
Country: UNITED KINGDOM


Publications/References
Wolff, E.W., Moore, J.C., Clausen, H.B., Hammer, C.U. 1997. Climatic
implications of background acidity and other chemistry derived from
electrical studies of the Greenland Ice Core Project ice core,
J. Geophys. Res., 102 (C12), 26,325-26,332.

Wolff, E.W., Moore, J.C., Clausen, H.B., Hammer, C.U., Kipfstuhl,
J. and Fuhrer, K. 1995. Long-term changes in the acid and salt
concentrations of the GRIP Greenland ice core from electrical
stratigraphy. J. Geophys. Res., 100, 16,249-16,264.

Moore, J.C., Wolff, E.W., Clausen, H.B., Hammer, C.U., Legrand,
M.R. and Fuhrer, K. 1994. Electrical response of the Summit-Greenland
ice core to ammonium, sulphuric acid, and hydrochloric
acid. Geophys. Res. Let., 21, 565-568.

Moore, J.C. and Paren, J.G. 1987. A new technique for dielectric
logging of Antarctic ice cores. Journal de Physique, 48,
C1/155-C1/160.

Moore, J.C., Mulvaney, R. and Paren, J.G. 1989. Dielectric
stratigraphy of ice: a new technique for determining total ionic
concentrations in polar ice cores. Geophys. Res. Let., 16, 1177-1180.

Creation and Review Dates
Last DIF Revision Date: 2006-05-09

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