noaa-ocean-11204
South China Sea ODP1144 260KYr Mg/Ca SST
Wei, G.; Deng, W.; Liu, Y.; Li, X.
South China Sea ODP1144 260KYr Mg/Ca SST
2011-06-14
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/11204
Investigator
G.
Wei
Investigator
W.
Deng
Investigator
Y.
Liu
Investigator
X.
Li
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,G. sacculifer
earth science
paleoclimate
paleoceanography
age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
magnesium/calcium,Trilobatus sacculifer,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
paleocean
geochemistry
earth science
paleoclimate
paleocean
reconstruction
geoscientificInformation
Sea Surface Temperature Reconstruction
261300 cal yr BP
1740 cal yr BP
Complete
20.053
20.053
117.419
117.419
-2037
-2037
Ocean
Pacific Ocean
Western Pacific Ocean
South China Sea
ODP 1144>LATITUDE 20.053>LONGITUDE 117.419
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
Wei, G., W. Deng, Y. Liu, and X. Li. 2007.
High-resolution sea surface temperature records derived
from foraminiferal Mg/Ca ratios during the last 260 ka
in the northern South China Sea.
Palaeogeography, Palaeoclimatology, Palaeoecology,
Vol. 250, pp. 126-138,
High-resolution sea surface temperatures (SST) derived from Mg/Ca
ratios of Globeriginoides sacculifer at ODP Site 1144 were reported
to reveal the SST changes during the last 260 ka in the northern
South China Sea (SCS). The results indicate an average Holocene SST
of about 26.7°C, about 3.6°C increase from LGM to the Holocene,
and higher temperature during MIS 5.5 than the Holocene. These agree
well with other foraminifer Mg/Ca and Uk37 SST records in this region.
The Mg/Ca records suggest warmer SSTs during MIS 3 in the northern SCS,
compared with those in the eastern Pacific. Strong East Asian summer
monsoon during MIS 3 indicated by paleoclimate records from nearby
continents may account for it. Step-wise increases during terminations
are shown in our SST record, and the beginning of deglacial warming
occurs at about 19 ka, which precedes the change of oxygen isotopes,
suggesting a tropical driven forcing for the SST change in the northern
SCS. This is further supported by a robust semiprecessional cycle
centering at ~9.1 ka in the spectra of the SST record, which is absent
in that of the oxygen isotopes. However, tropical driven forcing seems
not to be indicated in another Mg/Ca SST record in the northern SCS
[Oppo, D.W. and Sun, Y.B., 2005. Amplitude and timing of sea-surface
temperature change in the northern South China Sea: Dynamic link to
the East Asian monsoon. Geology, 33 (10): 785–788.]. The discrepancy
may be caused by different post-deposition dissolutions of foraminifer
tests at these two sites. Details about the modification of foraminifer
Mg/Ca ratios after burial, however, are not well known in this region,
and further studies are needed.
STUDY NOTES: Foraminiferal Mg/Ca data and SST calculations from South China Sea
core ODP1144 for the past 260,000 years. Mg/Ca ratios were measured
on tests of Globeriginoides sacculifer. SST calculations are by the
calibration of Nurnberg et al. 2000.
ODP1144 14C age data provided are from Table T2, Büehring et al. (2004)
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/wei2007/wei2007.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/wei2007/wei2007.xls
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11