noaa-ocean-11192
Indo-Pacific Warm Pool 40KYr SST and d18Osw Reconstructions
Mohtadi, M.; Steinke, S.; Lückge, A.; Groeneveld, J.; Hathorne, E.C.
Indo-Pacific Warm Pool 40KYr SST and d18Osw Reconstructions
2011-05-14
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/11192
Investigator
M.
Mohtadi
Investigator
S.
Steinke
Investigator
A.
Lückge
Investigator
J.
Groeneveld
Investigator
E.C.
Hathorne
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,G. ruber sensu lato
earth science
paleoclimate
climate reconstructions|paleoceanography
delta 18O,delta 18O|magnesium/calcium|sea water,null,per mil VSMOW,null,climate reconstructions|paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
age,null,null,calendar kiloyear before present,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
paleoceanography
magnesium/calcium,Globigerinoides ruber sensu stricto,null,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,G. ruber sensu stricto
earth science
paleoclimate
paleoceanography
magnesium/calcium,Globigerinoides ruber sensu lato,null,millimole per mole,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
paleocean
geochemistry
earth science
paleoclimate
paleocean
oxygen isotopes
earth science
paleoclimate
paleocean
reconstruction
geoscientificInformation
Other Hydroclimate Reconstruction
Sea Surface Temperature Reconstruction
Warm Pool
40120 cal yr BP
0 cal yr BP
Complete
-5.9375
-1.4945
100.128
103.246
-1819
-964
Ocean
Pacific Ocean
Western Pacific Ocean
GeoB10038-4>LATITUDE -5.9375>LONGITUDE 103.246
Ocean
Pacific Ocean
Western Pacific Ocean
GeoB10029-4>LATITUDE -1.4945>LONGITUDE 100.128
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
Mohtadi, M., S. Steinke, A. Lückge, J. Groeneveld,
and E.C. Hathorne. 2010.
Glacial to Holocene surface hydrography of the tropical
eastern Indian Ocean.
Earth and Planetary Science Letters, Vol. 292, pp. 89-97.
doi:10.1016/j.epsl.2010.01.024
Quantifying the spatial and temporal sea surface temperature (SST)
and salinity changes of the Indo-Pacific Warm Pool is essential to
understand the role of this region in connection with abrupt climate
changes particularly during the last deglaciation. In this study we
reconstruct SST and seawater d18O of the tropical eastern Indian
Ocean for the past 40,000 years from two sediment cores (GeoB 10029-4,
1°30'S, 100°08'E, and GeoB 10038-4, 5°56'S, 103°15'E) retrieved
offshore Sumatra. Our results show that annual mean SSTs increased
about 2-3 °C at 19,000 years ago and exhibited southern hemisphere-
like timing and pattern during the last deglaciation. Our SST records
together with other Mg/Ca-based SST reconstructions around Indonesia
do not track the monsoon variation since the last glacial period,
as recorded by terrestrial monsoon archives. However, the spatial
SST heterogeneity might be a result of changing monsoon intensity
that shifts either the annual mean SSTs or the seasonality of G. ruber
towards the warmer or the cooler season at different locations.
Seawater d18O reconstructions north of the equator suggest fresher
surface conditions during the last glacial and track the northern
high-latitude climate change during the last deglaciation. In contrast,
seawater d18O records south of the equator do not show a significant
difference between the last glacial period and the Holocene, and lack
Bølling-Allerød and Younger Dryas periods suggestive of additional
controls on annual mean surface hydrology in this part of the
Indo-Pacific Warm Pool.
STUDY NOTES: Benthic (Cibicidoides wuellerstorfi) and planktonic (Globigerinoides
ruber, sensu stricto or sensu lato) foraminiferal oxygen isotope (d18O)
and Mg/Ca data, plus reconstructed Sea Surface Temperature (SST)
and d18O-seawater from two Indo-Pacific Warm Pool cores for the last
40,000 years.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/mohtadi2010/mohtadi2010.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/mohtadi2010/mohtadi2010.txt
USA/NOAA
DIF
Version 9.8.4
2019-02-15
2019-02-15