noaa-ocean-11193
Eastern Tropical Indian Ocean 133KYr Ocean Temperature Reconstructions
Mohtadi, M.; Lückge, A.; Steinke, S.; Groeneveld, J.; Hebbeln, D.; Westphal, N.
Eastern Tropical Indian Ocean 133KYr Ocean Temperature Reconstructions
2011-05-14
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/11193
Investigator
M.
Mohtadi
Investigator
A.
Lückge
Investigator
S.
Steinke
Investigator
J.
Groeneveld
Investigator
D.
Hebbeln
Investigator
N.
Westphal
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,Globigerinoides ruber
earth science
paleoclimate
paleoceanography
age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
delta 18O,Neogloboquadrina dutertrei,null,per mil PDB,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
delta 18O,Cibicidoides wuellerstorfi,null,per mil PDB,null,paleoceanography,null,null,N,null
earth science
paleoclimate
climate reconstructions|paleoceanography
sea water temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,thermocline temperature from N. dutertrei
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,alkenone unsaturation index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
magnesium/calcium,Globigerinoides ruber,null,millimole per mole,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
alkenone unsaturation index Uk37 prime,null,null,dimensionless,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
depth,null,null,centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
delta 18O,Globigerinoides ruber,null,per mil PDB,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
magnesium/calcium,Neogloboquadrina dutertrei,null,millimole per mole,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleocean
geochemistry
earth science
paleoclimate
paleocean
biomarkers
earth science
paleoclimate
paleocean
oxygen isotopes
earth science
paleoclimate
paleocean
reconstruction
geoscientificInformation
Sea Surface Temperature Reconstruction
Warm Pool
131400 cal yr BP
0 cal yr BP
Complete
-5.9375
-5.9375
103.246
103.246
-1819
-1819
Ocean
Pacific Ocean
Western Pacific Ocean
GeoB10038-4>LATITUDE -5.9375>LONGITUDE 103.246
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
Mohtadi, M., A. Lückge, S. Steinke, J. Groeneveld, D. Hebbeln,
and N. Westphal. 2010.
Late Pleistocene surface and thermocline conditions
of the eastern tropical Indian Ocean.
Quaternary Science Reviews, Vol. 29, Issues 7-8, April 2010,
pp. 887-896. doi:10.1016/j.quascirev.2009.12.006
Surface and thermocline conditions of the eastern tropical
Indian Ocean were reconstructed through the past glacial-
interglacial cycle by using Mg/Ca and alkenone-paleothermometry,
stable oxygen isotopes of calcite and seawater, and terrigenous
fraction performed on sediment core GeoB 10038-4 off SW Sumatra
(~6°S, 103°E, 1819 m water depth). Results show that annual mean
surface and thermocline temperatures varied differently and
independently, and suggest that surface temperatures have been
responding to southern high-latitude climate, whereas the more
variable thermocline temperatures were remotely controlled by
changes in the thermocline temperatures of the North Indian Ocean.
Except for glacial terminations, salinity proxies indicate that
changing intensities of the boreal summer monsoon did not
considerably affect annual mean conditions off Sumatra during
the past 133,000 years. Our results do not show a glacial-
interglacial pattern in the thermocline conditions and reject
a linear response of the tropical Indian Ocean thermocline to
mid- and high-latitude climate change. Alkenone-based surface
temperature estimates varied in line with the terrigenous
fraction of the sediment and the East Asian winter monsoon
proxy records at the precession band suggestive of monsoon
(sea level) to be the dominant control on alkenone temperatures
in the eastern tropical Indian Ocean on sub-orbital (glacial-
interglacial) timescales.
STUDY NOTES: Foraminiferal oxygen isotope (d18O) and Mg/Ca data, alkenone (UK'37)
concentration data, plus reconstructed surface and thermocline
temperatures via Mg/Ca and alkenone calibrations for a Indo-Pacific
Warm Pool core for the last 133,000 years. Foraminifer species include
Cibicidoides wuellerstorfi, Globigerinoides ruber (sensu stricto),
and Neogloboquadrina dutertrei.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/mohtadi2010b/mohtadi2010b.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/mohtadi2010b/mohtadi2010b.txt
USA/NOAA
DIF
Version 9.8.4
2019-02-15
2019-02-15