noaa-ocean-18396
Tropical Pacific Geochemistry Data and SST Reconstructions for the Late Holocene and Last Glacial Maximum
Ford, H.L.; Ravelo, A.C.; Polissar, P.J.
Tropical Pacific Geochemistry Data and SST Reconstructions for the Late Holocene and Last Glacial Maximum
2015-04-17
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/18396
Investigator
H.L.
Ford
Investigator
A.C.
Ravelo
Investigator
P.J.
Polissar
earth science
paleoclimate
paleoceanography
magnesium/calcium,Globorotalia tumida,null,millimole per mole,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,null
earth science
paleoclimate
climate reconstructions|paleoceanography
sea water temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,using Mohtadi et al. 2011; Globorotalia tumida; temperature at ~100 m
earth science
paleoclimate
paleoceanography
magnesium/calcium,Trilobatus sacculifer,null,millimole per mole,null,paleoceanography,corrected,null,N,correction: dissolution from Regenberg et al. (2006)
earth science
paleoclimate
paleoceanography
magnesium/calcium,Trilobatus sacculifer,null,millimole per mole,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,LA-ICP-MS or ICP-OES
earth science
paleoclimate
paleoceanography
magnesium/calcium,Trilobatus sacculifer,one standard deviation,millimole per mole,null,paleoceanography,null,null,N,null
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,using Anand et al. 2003; Mg/Ca Globigerinoides sacculifer
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,Time Slice name
earth science
paleoclimate
paleoceanography
depth,null,null,centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleocean
geochemistry
earth science
paleoclimate
paleocean
reconstruction
geoscientificInformation
ENSO
Sea Surface Temperature Reconstruction
21500 cal yr BP
2800 cal yr BP
Complete
.18
.318333
-110.52
159.361667
-3839
-2520
Ocean
Pacific Ocean
North Pacific Ocean
ODP 849>LATITUDE .18>LONGITUDE -110.52
Ocean
Pacific Ocean
Western Pacific Ocean
ODP 806>LATITUDE .318333>LONGITUDE 159.361667
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
Ford, Heather L., A. Christina Ravelo, and Pratigya J. Polissar
2015
Reduced El Niño–Southern Oscillation during the Last Glacial Maximum
Science
347
6219
255-258
10.1126/science.1258437
http://www.sciencemag.org/content/347/6219/255.full.pdf
El Niño–Southern Oscillation (ENSO) is a major source of global interannual variability, but its response to climate change is uncertain. Paleoclimate records from the Last Glacial Maximum (LGM) provide insight into ENSO behavior when global boundary conditions (ice sheet extent, atmospheric partial pressure of CO2) were different from those today. In this work, we reconstruct LGM temperature variability at equatorial Pacific sites using measurements of individual planktonic foraminifera shells. A deep equatorial thermocline altered the dynamics in the eastern equatorial cold tongue, resulting in reduced ENSO variability during the LGM compared to the Late Holocene. These results suggest that ENSO was not tied directly to the east-west temperature gradient, as previously suggested. Rather, the thermocline of the eastern equatorial Pacific played a decisive role in the ENSO response to LGM climate.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ford2015/ford2015-odp806.txt
Formatted Text File; ODP806 Data
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ford2015/ford2015-odp849.txt
Formatted Text File; ODP849 Data
USA/NOAA
DIF
Version 9.8.4
2019-04-29
2019-04-29