noaa-ocean-2630
Southeast Pacific High Resolution Alkenone SST Reconstruction
Kaiser, J.; Lamy, F.; Hebbeln, D.
Southeast Pacific High Resolution Alkenone SST Reconstruction
2005-07-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/2630
Investigator
J.
Kaiser
Investigator
F.
Lamy
Investigator
D.
Hebbeln
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,alkenone unsaturation index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
depth,null,null,centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleocean
reconstruction
earth science
paleoclimate
paleocean
age control
geoscientificInformation
Sea Surface Temperature Reconstruction
69847 14C yr BP
-50 14C yr BP
69847 cal yr BP
0 cal yr BP
Complete
-41
-41
-74.45
-74.45
-838
-838
Ocean
Pacific Ocean
South Pacific Ocean
ODP 1233>LATITUDE -41>LONGITUDE -74.45
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
Kaiser, J., F. Lamy, and D. Hebbeln. 2005. A 70-kyr sea surface temperature record off southern Chile(Ocean Drilling Program Site 1233). Paleoceanography 20, PA4009.
We present the first high-resolution alkenone-derived sea surface temperature (SST) reconstruction in the southeast Pacific (Ocean Drilling Program Site 1233) covering the major part of the last glacial period and the Holocene. The record shows a clear millennial-scale pattern that is very similar to climate fluctuations observed in Antarctic ice cores, suggesting that the Southern Hemisphere high-latitude climate changes extended into the midlatitudes, involving simultaneous changes in air temperatures over Antarctica, sea ice extent, extension of the Antarctic Circumpolar Current, and westerly atmospheric circulation. A comparison to other midlatitude surface ocean records suggests that this ""Antarctic"" millennial-scale pattern was probably a hemisphere-wide phenomenon. In addition, we performed SST gradient reconstructions over the complete latitudinal range of the Pacific Eastern Boundary Current System for different time intervals during the last 70 kyr. The main results suggest an equatorward displaced subtropical gyre circulation during marine isotope stages 2 and 4.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kaiser2005
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp1233k-tab.txt
USA/NOAA
DIF
Version 9.8.4
2019-05-06
2019-05-06