noaa-ocean-13541
Guaymas and Cariaco Basin 300 Year Alkenone SST Reconstructions
Goni, M.; Thunell, R.C.; Woodwort, M.P.; Müller-Karger, F.E.
Guaymas and Cariaco Basin 300 Year Alkenone SST Reconstructions
2012-11-19
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/13541
Investigator
M.
Goni
Investigator
R.C.
Thunell
Investigator
M.P.
Woodwort
Investigator
F.E.
Müller-Karger
earth science
paleoclimate
paleoceanography
depth,null,null,millimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
alkenone unsaturation index Uk37,null,null,dimensionless,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
age,null,null,year Common Era,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleocean
biomarkers
earth science
paleoclimate
paleocean
reconstruction
geoscientificInformation
Intertropical Convergence Zone (ITCZ)
Sea Surface Temperature Reconstruction
1694 AD
1996 AD
256 cal yr BP
-46 cal yr BP
Complete
10.6496
28
-111.8
-64.6607
-432
-432
Ocean
Atlantic Ocean
North Atlantic Ocean
Caribbean Sea
MC-4>LATITUDE 10.6496>LONGITUDE -64.6607
Ocean
Pacific Ocean
Eastern Pacific Ocean
BC-43>LATITUDE 28>LONGITUDE -111.8
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
Miguel A. Goni, Robert C. Thunell, Mark P. Woodwort, and Frank E. Mueller-Karger. 2006.
Changes in wind-driven upwelling during the last three centuries: Interocean teleconnections.
Geophysical Research Letters, Vol. 33, L15604
DOI: 10.1029/2006GL026415
Analysis of sediments from two wind-driven upwelling systems, Guaymas and Cariaco basins, using the alkenone-based Uk'37 paleothermometer yielded high-resolution records of sea surface temperatures (SST) from 1700 to 2000 AD. The trends in the UK'37 index reveal steady SST increases of 1 to 2°C at both sites since the end of the Little Ice Age. Higher-frequency changes in SST indicate a decoupling in the relative intensity of wind-driven upwelling at the two sites. Periods of enhanced upwelling in Guaymas correspond to periods of decreased upwelling in Cariaco (and vice versa). We propose that these contrasts reflect regional differences in the upwelling response of upwelling to changes in the positioning of the Inter-Tropical Convergence Zone (ITCZ) and the Subtropical High (SH) under current climate conditions.
STUDY NOTES: We analyzed sediments from box cores collected in Guaymas Basin and Cariaco Basin to produce high-resolution records of alkenone Uk'37 index and alkenone-derived SST values from 1700 to 2000 AD. Both cores are varved throughout their entire length and their age models, which are based on 210Pb and 14C AMS chronologies, are consistent with average accumulation rates of ~1.1 mm/y at both sites.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/goni2006/goni2006bc43.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/goni2006/goni2006mc4.txt
USA/NOAA
DIF
Version 9.8.4
2019-04-22
2019-04-22