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Summary

This data set consists of detailed oxygen isotope (del 18O)
measurements from the 3029 m Summit Core in Greenland collected by the
Greenland Ice Core Project (GRIP) members. The isotope measurements
were made on 0.55 m sections of ice, and reported relative to the
interval and the midpoint of the section. The data presented here and
published in the ... references were produced by appending a series of
files containing data from different files (representing different
field seasons), and applying the age model described in Dansgaard, et
al, 1993. The data record spans 0 to 250,000 yBP.

ftp://ftp.ngdc.noaa.gov/paleo/icecore/greenland/summit/grip/isotopes/
get file gripd18o.txt

Variables:
Depth or Age. Units are meters or years before present.
Oxygen isotopes. Units are per mil relative to the SMOW standard.

Other GRIP is available at:
ftp://ftp.ngdc.noaa.gov/paleo/icecore/greenland/summit/grip/

NOTE: PLEASE CITE ORIGINAL REFERENCES WHEN USING THIS DATA!

Geographic Coverage Spatial coordinates   

N: 73.0

S: 72.0

E: -37.0

W: -38.0

Data Set Citation

Dataset Creator: Johnson, S.J., et al. Dataset Title: Greenland Ice Core Project Summit Core O18 Dataset Series Name: IGBP PAGES/WDCA Data Contribution #93-033 Dataset Release Date: 1993 Dataset Release Place: Boulder, CO Dataset Publisher: NOAA/NGDC Paleoclimatology Program Issue Identification: 93-033 Online Resource: ftp://ftp.ngdc.noaa.gov/paleo/icecore/grip/

Temporal Coverage

Start Date: 1989-01-01 Stop Date: 1992-12-13

Paleo Temporal Coverage

Paleo Start Date: 250,000 ybp Paleo Stop Date: 0 ybp Chrono Unit: PHANEROZOIC  >  CENOZOIC  >  QUATERNARY  >  PLEISTOCENE Paleo Start Date: 250,000 ybp Paleo Stop Date: 0 ybp Chrono Unit: PHANEROZOIC  >  CENOZOIC  >  QUATERNARY

Location Keywords

CONTINENT > NORTH AMERICA > GREENLAND GEOGRAPHIC REGION > POLAR

Science Keywords

PALEOCLIMATE > ICE CORE RECORDS > ICE CORE AIR BUBBLES PALEOCLIMATE > ICE CORE RECORDS > ISOTOPES > OXYGEN ISOTOPES

ISO Topic Category

GEOSCIENTIFIC INFORMATION CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Platform

GROUND STATIONS

Project

GRIP > Greenland Ice Core Project PAGES > Past Global Changes, IGBP IGBP > International Geosphere-Biosphere Programme DODS > Distributed Oceanographic Data System ESIP > Earth Science Information Partners Program OPENDAP > Open-source Project for a Network Data Access Protocol

Ancillary Keywords

GREENLAND GRIP ICE ICE CAP ICE CORE ICE CORES O18 OXYGEN ISOTOPES PALEOCLIMATE PALEOENVIRONMENT PLEISTOCENE QUATERNARY

Originating Center

NOAA/NESDIS/NGDC

Data Center

Climate Data Library, International Research Institute for Climate Prediction, Lamont-Doherty Earth Observatory, Columbia University Data Center URL: http://ingrid.ldeo.columbia.edu/ Dataset ID: GRIP Data Center Personnel Name: BENNO BLUMENTHAL Phone: (845) 680-4450 Fax: (845) 680-4864 Email: benno at iri.ldeo.columbia.edu Contact Address: Data Library Manager International Research Institute for Climate Prediction Lamont-Doherty Earth Observatory Columbia University City: Palisades Province or State: NY Postal Code: 10964-8000 Country: USA World Data Center for Paleoclimatology, Boulder 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: 426 KB Distribution Format: ASCII Fees: None

Personnel

HENRIK B. CLAUSON Role: INVESTIGATOR Email: hbc at gfy.ku.dk Contact Address: The Niels Bohr Institute Department of Geophysics University of Copenhagen City: Juliane Maries Vej 30 Province or State: Copenhagen O Postal Code: DK2100 Country: Denmark DORTHE DAHL-JENSEN Role: INVESTIGATOR Email: ddj at gfy.ku.dk Contact Address: The Niels Bohr Institute Department of Geophysics University of Copenhagen City: Juliane Maries Vej 30 Province or State: Copenhagen O Postal Code: DK2100 Country: Denmark WILLY DANSGAARD Role: INVESTIGATOR Contact Address: The Niels Bohr Institute Department of Geophysics University of Copenhagen Juliane Maries Vej 30 City: Copenhagen O Postal Code: DK2100 Country: Denmark NIELS S. GUNDESTRUP Role: INVESTIGATOR Email: ng at gfy.ku.dk Contact Address: The Niels Bohr Institute Department of Geophysics University of Copenhagen Juliane Maries Vej 30 City: Copenhagen O Postal Code: DK2100 Country: Denmark CLAUS U. HAMMER Role: INVESTIGATOR Email: cuh at gfy.ku.dk Contact Address: The Niels Bohr Institute Department of Geophysics University of Copenhagen Juliane Maries Vej 30 City: Copenhagen O Postal Code: DK2100 Country: Denmark CHRISTINE S. HVIDBERG Role: INVESTIGATOR Email: ch at gfy.ku.dk Contact Address: The Niels Bohr Institute Department of Geophysics University of Copenhagen City: Juliane Maries Vej 30 Province or State: Copenhagen O Postal Code: DK2100 Country: Denmark SIGFUS J. JOHNSEN Role: INVESTIGATOR Email: sigfus at gfy.ku.dk Contact Address: The Niels Bohr Institute Department of Geophysics University of Copenhagen Juliane Maries Vej 30 City: Copenhagen O Postal Code: DK2100 Country: Denmark JEAN JOUZEL Role: INVESTIGATOR Contact Address: Institut Pierre Simon Laplace Laboratoire des Sciences du Climat et de l'Environnement CEA-CNRS 1572 CE Saclay Orme des Merisiers City: Gif-sur-Yvette Postal Code: 91191 Country: France J. P. STEFFENSEN Role: INVESTIGATOR Email: jps at gfy.ku.dk Contact Address: The Niels Bohr Institute Department of Geophysics University of Copenhagen, Juliane Maries Vej 30 Province or State: COPENHAGEN O Country: DENMARK ARNY E. SVEINBJORNSDOTTIR Role: INVESTIGATOR Email: arny at raunvis.hi.is Contact Address: Science Institute University of Iceland Dunhaga 3, IS-107 Province or State: REYKJAVIC Country: ICELAND

Related URL

Link: View Related Information Description: World Data Centers Ice Core Gateway Link: GET DATA Description: Greenland Summit Ice Cores CD-ROM Link: GET DATA Description: GRIP oxygen isotopic ratio at LDEO/IRI Climate Date Library Link: VIEW RELATED INFORMATION Description: GRIP oxygen isotopic ratio at LDEO/IRI Climate Date Library

Publications/References

Dansgaard, W., Jonhsen, S. J., Clauson, H. B., Dahl-Jensen, D.,
Gundestrup, N. S., Hammer, C. U., Hvidberg, C. S., Steffensen, J. P.,
Sveinbjornsdottir, A. E., Jouzel, J., and G. Bond. 1993. Evidence for
general instability in past climate from a 250-kyr ice-core
record. Nature, 364:218-220.

Taylor, K. C., Lamorey, G. W., Doyle, G. A., Alley, R. B., Grootes,
P. M., Mayewski, P. A., White, J. W. C., and L. K. Barlow, 1993. The
flickering switch of late Pleistocene climate change. Nature,
361:432-436.

Creation and Review Dates

Last DIF Revision Date: 2006-12-18

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