noaa-icecore-11131
Renland and Agassiz Ice Core 60KYr d18O Data on GICC05 Timescale
Vinther, B.M.; Clausen, H.B.; Fisher, D.A.; Koerner, R.M.; Johnsen, S.J.; Andersen, K.K.; Dahl-Jensen, D.; Rasmussen, S.O.; Steffensen, J.P.; Svensson, A.M.
Renland and Agassiz Ice Core 60KYr d18O Data on GICC05 Timescale
2011-04-29
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/11131
Investigator
B.M.
Vinther
Investigator
H.B.
Clausen
Investigator
D.A.
Fisher
Investigator
R.M.
Koerner
Investigator
S.J.
Johnsen
Investigator
K.K.
Andersen
Investigator
D.
Dahl-Jensen
Investigator
S.O.
Rasmussen
Investigator
J.P.
Steffensen
Investigator
A.M.
Svensson
earth science
paleoclimate
ice cores
delta 18O,bulk ice,null,per mil SMOW,null,ice cores,averaged,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
ice cores
depth,null,null,null,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
ice age,null,null,calendar year before present,null,ice cores,null,null,N,present defined as 2000 A.D.
earth science
paleoclimate
ice core
age control
earth science
paleoclimate
ice core
oxygen isotopes
geoscientificInformation
59390 cal yr BP
-10 cal yr BP
Complete
71.27
80.7
-73.1
-26.73
1730
2350
Continent
North America
Canada
Agassiz Ice Cap>LATITUDE 80.7>LONGITUDE -73.1
Continent
North America
Greenland
Renland>LATITUDE 71.27>LONGITUDE -26.73
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Vinther, B.M., H.B. Clausen, D.A. Fisher, R.M. Koerner,
S.J. Johnsen, K.K. Andersen, D. Dahl-Jensen, S.O. Rasmussen,
J.P. Steffensen, and A.M. Svensson. 2008.
Synchronizing ice cores from the Renland and Agassiz ice caps
to the Greenland Ice Core Chronology.
J. Geophys. Res., 113, D08115, doi:10.1029/2007JD009143
Four ice cores from the Agassiz ice cap in the Canadian high arctic
and one ice core from the Renland ice cap in eastern Greenland have
been synchronized to the Greenland Ice Core Chronology 2005 (GICC05)
which is based on annual layer counts in the DYE-3, GRIP and NGRIP
ice cores. Volcanic reference horizons, seen in electrical conductivity
measurements (ECM) have been used to carry out the synchronization
throughout the Holocene. The Agassiz ice cores have been matched
to the NGRIP ice core ECM signal, while the Renland core has been
matched to the GRIP ice core ECM signal, thus tying the cores to GICC05.
Furthermore, it has been possible to synchronize the Renland ice core
to NGRIP-GICC05 in the glacial period back to 60,000 years b2k
(years before A.D. 2000), on the basis of a matching of transitions
between stadials and interstadials. This work brings the total number
of ice core records that have been rigorously tied to the GICC05
timescale up to nine. Renland annual layer thicknesses are increasing
with depth during the period from 7 to 8.5 ka b2k, a highly unusual
observation only matched by a similar thickness increase in the glacial
section of the Renland core some 60 ka ago. Annual layer thicknesses
in the Agassiz ice cores point to a well-developed Raymond bump
in the Agassiz ice cap.
STUDY NOTES: Ice cores time scales for the Agassiz ice cap on Ellesmere Island
and the Renland ice cap, Greenland. The time scales are synchronized
to the Greenland Ice Core Chronology 2005 (GICC05), utilizing volcanic
reference horizons seen in electrical conductivity measurements (ECM)
in the Holocene, and transitions between stadials and interstadials
during the glacial period.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/polar/agassiz/vinther2008renland-agassiz.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/polar/agassiz/vinther2008renland-agassiz.xls
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11