noaa-ocean-13667
Eastern Equatorial Pacific LGM-Holocene G. ruber d18O Data
Koutavas, A.; Joanides, S.
Eastern Equatorial Pacific LGM-Holocene G. ruber d18O Data
2012-12-19
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/13667
Investigator
A.
Koutavas
Investigator
S.
Joanides
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,from G. ruber white
earth science
paleoclimate
paleoceanography
age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,N,sample serial number
earth science
paleoclimate
paleoceanography
delta 18O,Globigerinoides ruber white,null,per mil VSMOW,null,paleoceanography,corrected,null,N,ice volume corrected
earth science
paleoclimate
paleoceanography
sample identification,null,null,null,null,paleoceanography,null,null,C,null
earth science
paleoclimate
paleoceanography
delta 18O,Globigerinoides ruber white,null,per mil VPDB,null,paleoceanography,null,null,N,300-355 microns
earth science
paleoclimate
paleoceanography
magnesium/calcium,Globigerinoides ruber,null,millimole per mole,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
delta 13C,Globigerinoides ruber,null,per mil PDB,null,paleoceanography,null,null,N,250-355 micron
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,Core Name
earth science
paleoclimate
paleoceanography
depth,null,null,centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
delta 18O,Globigerinoides ruber white,null,per mil VPDB,null,paleoceanography,null,null,N,250-355 microns
earth science
paleoclimate
paleoceanography
delta 13C,Globigerinoides ruber,null,per mil PDB,null,paleoceanography,null,null,N,250-355 microns
earth science
paleoclimate
paleocean
oxygen isotopes
geoscientificInformation
ENSO
32840 cal yr BP
770 cal yr BP
Complete
-2.37
6.9
-89.68
-84.65
-2720
-617
Ocean
Pacific Ocean
South Pacific Ocean
V21-30>LATITUDE -1.22>LONGITUDE -89.68
Ocean
Pacific Ocean
Eastern Pacific Ocean
V28-134>LATITUDE 6.9>LONGITUDE -85.433
Ocean
Pacific Ocean
South Pacific Ocean
V19-28>LATITUDE -2.37>LONGITUDE -84.65
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
Athanasios Koutavas and Stephan Joanides. 2012.
El Niño-Southern Oscillation extrema in the Holocene and Last Glacial Maximum.
Paleoceanography, Vol. 27, No. 4.
DOI: 10.1029/2012PA002378
The El Niño-Southern Oscillation (ENSO) is the largest engine of interannual climate variability on the planet, yet its past behavior and potential for future change are poorly understood and vigorously contested. Reconstructions of past ENSO are indispensable for testing climate models tasked with predicting future ENSO activity in a warming world, but suitable geologic archives are scarce, especially for the last glacial period. Here we reconstruct mean climate and ENSO variability in the Holocene and Last Glacial Maximum (LGM) from oxygen isotopic ratios (d18O) of individual foraminifera retrieved from deep-sea sediments. Our results document coordinated adjustments of the tropical Pacific/ENSO system between two diametrically opposite states: an "amplified ENSO" state in the LGM associated with a reduced zonal temperature gradient, and a "damped ENSO" state in the Mid-Holocene with enhanced gradient. Orbital precession provided the switch between these states and acted as the dominant external driver of the tropical Pacific/ENSO system in the past 25,000 years. The linked response of the mean state and variability to orbital forcing provides an integrated framework for testing ENSO theory and models.
STUDY NOTES: Globigerinoides ruber (white) individual d18O spanning the Holocene and LGM
from sediment core V21–30 in the eastern equatorial Pacific (EEP)
near the Galapagos Islands
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/koutavas2012/koutavas2012individuals.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/koutavas2012/koutavas2012v28-134.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/koutavas2012/koutavas2012v19-28.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/koutavas2012/koutavas2012v21-30.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11