noaa-icecore-15076
AICC2012 800KYr Antarctic Ice Core Chronology
Bazin, L.; Landais, A.; Lemieux-Dudon, B.; Toyé Mahamadou Kele, H.; Veres, D.; Parrenin, F.; Martinerie, P.; Ritz, C.; Capron, E.; Lipenkov, V.; Loutre, M.F.; Raynaud, D.; Vinther, B.M.; Svensson, A.M.; Rasmussen, S.O.; Severi, M.; Blunier, T.; Leuenberger, M.; Fischer, H.; Masson-Delmotte, V.; Chappellaz, J.A.; Wolff, E.W.
AICC2012 800KYr Antarctic Ice Core Chronology
2013-09-16
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/15076
Investigator
L.
Bazin
Investigator
A.
Landais
Investigator
B.
Lemieux-Dudon
Investigator
H.
Toyé Mahamadou Kele
Investigator
D.
Veres
Investigator
F.
Parrenin
Investigator
P.
Martinerie
Investigator
C.
Ritz
Investigator
E.
Capron
Investigator
V.
Lipenkov
Investigator
M.F.
Loutre
Investigator
D.
Raynaud
Investigator
B.M.
Vinther
Investigator
A.M.
Svensson
Investigator
S.O.
Rasmussen
Investigator
M.
Severi
Investigator
T.
Blunier
Investigator
M.
Leuenberger
Investigator
H.
Fischer
Investigator
V.
Masson-Delmotte
Investigator
J.A.
Chappellaz
Investigator
E.W.
Wolff
earth science
paleoclimate
ice cores
gas age,null,one standard deviation,calendar year before present,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
accumulation rate,bulk ice,null,meter per year,null,ice cores,null,null,N,ice equivalent
earth science
paleoclimate
ice cores
thinning function,bulk ice,null,dimensionless,null,ice cores,null,numerical simulation,N,null
earth science
paleoclimate
ice cores
ice age,null,null,calendar year before present,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
depth,null,null,meter,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
ice age,null,one standard deviation,calendar year before present,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
gas age,null,null,calendar year before present,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
lock-in depth,bulk ice,null,meter,null,ice cores,null,null,N,null
earth science
paleoclimate
ice core
age control
geoscientificInformation
807941 cal yr BP
-55 cal yr BP
Complete
-78.47
75.1
-42.33
159.1833
2315
3240
Continent
Antarctica
Talos Dome TALDICE>LATITUDE -72.8166>LONGITUDE 159.1833
Continent
Antarctica
EPICA Dome C>LATITUDE -75.1>LONGITUDE 123.4
Continent
Antarctica
Vostok>LATITUDE -78.47>LONGITUDE 106.8
Continent
Antarctica
EPICA Dronning Maud Land>LATITUDE -75>LONGITUDE .07
Continent
North America
Greenland
NGRIP>LATITUDE 75.1>LONGITUDE -42.33
None
Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
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
L. Bazin, A. Landais, B. Lemieux-Dudon, H. Toyé Mahamadou Kele, D. Veres, F. Parrenin, P. Martinerie, C. Ritz, E. Capron, V. Lipenkov, M.-F. Loutre, D. Raynaud, B. Vinther, A. Svensson, S.O. Rasmussen, M. Severi, T. Blunier, M. Leuenberger, H. Fischer, V. Masson-Delmotte, J. Chappellaz, and E.Wolff. 2013. An optimized multi-proxy, multi-site Antarctic ice and gas orbital chronology (AICC2012): 120-800 ka. Climate of the Past, Vol. 9, Issue 4, pp. 1715-1731. DOI: 10.5194/cp-9-1715-2013
D. Veres, L. Bazin, A. Landais, H. Toyé Mahamadou Kele, B. Lemieux-Dudon, F. Parrenin, P. Martinerie, E. Blayo, T. Blunier, E. Capron, J. Chappellaz, S.O. Rasmussen, M. Severi, A. Svensson, B. Vinther, and E.W. Wolff. 2013. The Antarctic ice core chronology (AICC2012): an optimized multi-parameter and multi-site dating approach for the last 120 thousand years. Climate of the Past, Vol. 9, Issue 4, pp. 1733-1748. DOI: 10.5194/cp-9-1733-2013
An accurate and coherent chronological framework is essential for the interpretation of climatic and environmental records obtained from deep polar ice cores. Until now, one common ice core age scale had been developed based on an inverse dating method (Datice), combining glaciological modelling with absolute and stratigraphic markers between 4 ice cores covering the last 50 ka (thousands of years before present) (Lemieux-Dudon et al., 2010). In this paper, together with the companion paper of Veres et al. (2013), we present an extension of this work back to 800 ka for the NGRIP, TALDICE, EDML, Vostok and EDC ice cores using an improved version of the Datice tool. The AICC2012 (Antarctic Ice Core Chronology 2012) chronology includes numerous new gas and ice stratigraphic links as well as improved evaluation of background and associated variance scenarios. This paper concentrates on the long timescales between 120-800 ka. In this framework, new measurements of d18Oatm over Marine Isotope Stage (MIS) 11-12 on EDC and a complete d18Oatm record of the TALDICE ice cores permit us to derive additional orbital gas age constraints. The coherency of the different orbitally deduced ages (from d18Oatm, dO2/N2 and air content) has been verified before implementation in AICC2012. The new chronology is now independent of other archives and shows only small differences, most of the time within the original uncertainty range calculated by Datice, when compared with the previous ice core reference age scale EDC3, the Dome F chronology, or using a comparison between speleothems and methane. For instance, the largest deviation between AICC2012 and EDC3 (5.4 ka) is obtained around MIS 12. Despite significant modifications of the chronological constraints around MIS 5, now independent of speleothem records in AICC2012, the date of Termination II is very close to the EDC3 one.
STUDY NOTES: The AICC2012 chronology is a common and precise chronology for Vostok, EDC, EDML, TALDICE and NGRIP ice core.
For each core data include Depth, ice age, gas age (and their uncertainties), the accumulation rate, the thinning function,
and the Lock-in depth in ice equivalent (LIDIE). The new age scale is tuned to GICC05 over the last 60 ka.
The "-1" here is equivalent to "NaN"
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/aicc2012ngrip.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/aicc2012edml.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/aicc2012edc.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/aicc2012icecore-data.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/aicc2012taldice.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/aicc2012vostok.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/aicc2012official.xls
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11