noaa-ocean-10420
Makassar Strait 14KYr Foraminiferal Mg/Ca SST and d18Osw
Linsley, B.K.; Rosenthal, Y.; Oppo, D.W.
Makassar Strait 14KYr Foraminiferal Mg/Ca SST and d18Osw
2010-08-02
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/10420
Investigator
B.K.
Linsley
Investigator
Y.
Rosenthal
Investigator
D.W.
Oppo
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
climate reconstructions|paleoceanography
delta 18O,delta 18O|magnesium/calcium|sea water,null,per mil,null,climate reconstructions|paleoceanography,null,null,N,Globigerinoides ruber
earth science
paleoclimate
climate reconstructions|paleoceanography
number of samples,null,null,count,null,climate reconstructions|paleoceanography,null,null,N,number of samples per bin
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,one standard error,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,anomalized from the average of the last 2000y; 8 core composite binned into 200 year intervals
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,anomalized from the average of the last 2000y
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,anomalized from the average of the last 2000y; 8 core composite binned into 200 year intervals
earth science
paleoclimate
paleoceanography
age,null,null,calendar year before present,null,paleoceanography,null,null,N,null
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,one standard error lower bound,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,anomalized from the average of the last 2000y; 8 core composite binned into 200 year intervals
earth science
paleoclimate
paleoceanography
depth at sample start,null,null,centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
delta 18O,Globigerinoides ruber,null,per mil,null,paleoceanography,null,null,N,212-250 mcm fraction
earth science
paleoclimate
paleoceanography
magnesium/calcium,Globigerinoides ruber,null,millimole per mole,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
magnesium/calcium,Globigerinoides ruber,null,millimole per mole,null,paleoceanography,null,null,N,Mg25/Ca43
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,one standard error upper bound,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,anomalized from the average of the last 2000y; 8 core composite binned into 200 year intervals
earth science
paleoclimate
paleoceanography
depth at sample end,null,null,centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleocean
oxygen isotopes
geoscientificInformation
Other Hydroclimate Reconstruction
Sea Surface Temperature Reconstruction
Warm Pool
14300 cal yr BP
107 cal yr BP
Complete
-7.4
-3.5667
115.2
119.3833
-649
-482
Ocean
Pacific Ocean
Western Pacific Ocean
13GGC>LATITUDE -7.4>LONGITUDE 115.2
Ocean
Pacific Ocean
Western Pacific Ocean
10GGC>LATITUDE -7.3667>LONGITUDE 115.25
Ocean
Pacific Ocean
Western Pacific Ocean
70GGC>LATITUDE -3.5667>LONGITUDE 119.3833
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
Linsley, B.K., Y. Rosenthal, and D.W. Oppo. 2010.
Holocene evolution of the Indonesian throughflow
and the western Pacific warm pool.
Nature Geoscience, Vol. 3, pp. 578-583, August 2010.
DOI: 10.1038/NGEO920
High sea surface temperatures in the western Pacific warm pool
fuel atmospheric convection and influence tropical climate.
This region also hosts the Indonesian throughflow, the network
of currents through which surface and thermocline waters are
transported from the western equatorial Pacific Ocean into the
Indian Ocean. Here we show, using records of the d18O and Mg/Ca
of planktonic foraminifera from eight sediment cores, that from
about 10,000 to 7,000 years ago, sea surface temperatures in the
western sector of the western Pacific warm pool were about 0.5°C
higher than during pre-industrial times. We also find that
about 9,500 years ago, when the South China and Indonesian
seas were connected by rising sea level, surface waters in the
Makassar Strait became relatively fresher. We suggest that the
permanent reduction of surface salinity initiated the enhanced
flow at lower, thermocline depths seen in the modern Indonesian
throughflow. However, the uniformly warm sea surface temperatures
found upstream and downstream of the Indonesian throughflow
indicate that the early Holocene warmth in this region was not
directly related to reduced heat transport by the throughflow
that may have resulted from surface freshening of the Makassar
Strait. Instead, we propose that the elevated temperatures were
the result of a westward shift or expansion of the boundaries
of the western Pacific warm pool.
STUDY NOTES: Planktonic foraminiferal Mg/Ca records of mixed-layer temperatures
in the western Pacific warm pool. Included are new Globigerinoides
ruber Mg/Ca data from the southern Makassar Strait, cores 13GGC,
70GGC and 10GGC, and regional average composite sediment core SST
and d18Osw reconstructions utilizing these and previously published
data.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/linsley2010/linsley2010.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/linsley2010/linsley2010.txt
USA/NOAA
DIF
Version 9.8.4
2019-06-06
2019-06-06