noaa-icecore-9971
EPICA Dome C Ice Core Termination II d13CO2 Data
Lourantou, A.; Chappellaz, J.A.; Barnola, J.M.; Masson-Delmotte, V.; Raynaud, D.
EPICA Dome C Ice Core Termination II d13CO2 Data
2010-07-02
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/9971
Investigator
A.
Lourantou
Investigator
J.A.
Chappellaz
Investigator
J.M.
Barnola
Investigator
V.
Masson-Delmotte
Investigator
D.
Raynaud
earth science
paleoclimate
climate forcing|ice cores
carbon dioxide,bulk atmosphere,one standard deviation,parts per million,null,climate forcing|ice cores,null,null,N,null
earth science
paleoclimate
ice cores
delta 13C,carbon dioxide,one standard deviation,per mil,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
delta 13C,carbon dioxide,null,per mil PDB,null,ice cores,corrected,null,N,corrected for gravitational fractionation
earth science
paleoclimate
climate forcing|ice cores
carbon dioxide,bulk atmosphere,null,parts per million,null,climate forcing|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
climate forcing|ice cores
carbon dioxide,bulk atmosphere,null,parts per million,null,climate forcing|ice cores,corrected,null,N,corrected for gravitational fractionation
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
delta 13C,carbon dioxide,null,per mil PDB,null,ice cores,null,null,N,null
earth science
paleoclimate
ice core
carbon isotopes
earth science
paleoclimate
ice core
atmospheric gas
geoscientificInformation
Last Interglacial
carbon cycle
151703 cal yr BP
125222 cal yr BP
Complete
-75.1
-75.1
123.4
123.4
3240
3240
Continent
Antarctica
EPICA Dome C>LATITUDE -75.1>LONGITUDE 123.4
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
Lourantou, A., J. Chappellaz, J.-M. Barnola, V. Masson-Delmotte, and D. Raynaud. 2010. Changes in atmospheric CO2 and its carbon isotopic ratio during the penultimate deglaciation. Quaternary Science Reviews, Vol. 29, Issues 17-18, August 2010, pp. 1983-1992 doi:10.1016/j.quascirev.2010.05.002
The largest natural increases in atmospheric CO2 concentration
as recorded in ice cores occur when the Earth climate abruptly
shifts from a glacial to an interglacial state. Open questions
remain regarding the processes at play, the sequences of events
and their similarities along different glacial-interglacial
transitions. Here we provide new combined data of atmospheric
CO2 and its carbon isotopic ratio (d13CO2) for the penultimate
glacial-interglacial transition (Termination II) from the
Antarctic EPICA Dome C ice core. Together with the strongest
Antarctic warming, this transition bears the largest CO2 increase
(104 ppmv) of the last nine Terminations, ending with an overshoot
of 21 ppmv occurring within ~300 y and leading to higher levels
than those of the late pre-industrial Holocene. The full CO2 rise
is accompanied by an overall decrease of the d13CO2 minimum values,
on which three positive excursions are superimposed. Peak-to-peak
d13CO2 changes in our record can reach ~1 per mil. The ice core
atmospheric d13CO2 appears more depleted by ~0.2 per mil during
Termination II compared to Termination I, paralleling a similar
carbon isotopic depletion recorded in marine data. During both
terminations, most of CO2 and d13CO2 variations are attributed
to southern ocean stratification breakdown and decreased
efficiency of the biological pump. Compared to Termination I,
Termination II ice core data point to different timings
of decrease in iron supply and sea-ice extent, suggesting
that they could account for distinct patterns of the carbon cycle.
STUDY NOTES: Record of CO2 and d13CO2 across Termination II from the European
Project for Ice Coring in Antarctica (EPICA) Dome C (EDC) ice core,
and comparison with previously published Vostok ice core CO2 data.
The experimental procedure of extraction of CO2 and its stable
isotopes, as well as the synchronization of EDC age scale to GICC05,
are described in the methods section of Lourantou et al. 2010.
An even more detailed description can be found in Lourantou, 2009
(PhD thesis, can be found online at:
http://tel.archives-ouvertes.fr/tel-00370658/fr/)
Termination II is the penultimate glacial–interglacial transition
~125,000 Yr BP.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc2010d13co2-t2.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc2010d13co2-t2.xls
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11