noaa-ocean-11190
Eastern Equatorial Atlantic GeoB4905-4 21KYr Mg/Ca SST, SSS, and d18Osw
Weldeab, S.; Schneider, R.R.; Kölling, M.; Wefer, G.
Eastern Equatorial Atlantic GeoB4905-4 21KYr Mg/Ca SST, SSS, and d18Osw
2011-05-13
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/11190
Investigator
S.
Weldeab
Investigator
R.R.
Schneider
Investigator
M.
Kölling
Investigator
G.
Wefer
earth science
paleoclimate
paleoceanography
age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
delta 18O,Globigerinoides ruber pink,null,per mil PDB,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
magnesium/calcium,Globigerinoides ruber pink,null,millimole per mole,null,paleoceanography,null,null,N,null
earth science
paleoclimate
climate reconstructions|paleoceanography
salinity,delta 18O|magnesium/calcium|sea surface,null,parts per thousand,null,climate reconstructions|paleoceanography,null,null,N,on G. ruber pink
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,on G. ruber pink
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,on G. ruber pink
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
Monsoon
Other Hydroclimate Reconstruction
Sea Surface Temperature Reconstruction
21770 cal yr BP
60 cal yr BP
Complete
2.5
2.5
9.384
9.384
-1328
-1328
Ocean
Atlantic Ocean
GeoB4905-4>LATITUDE 2.5>LONGITUDE 9.384
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
Weldeab, S., R.R. Schneider, M. Kölling, and G. Wefer. 2005.
Holocene African droughts relate to eastern equatorial Atlantic cooling.
Geology, Vol. 33, no. 12, pp. 981-984. doi: 10.1130/G21874.1
Here we present evidence that the Holocene African monsoon system (AMS)
varied in response to the eastern equatorial Atlantic sea-surface
temperature (SST). Several short-term episodes of decreased moisture
availability as a result of low eastern equatorial Atlantic SST are
suggested by planktonic foraminiferal Mg/Ca ratios. These episodes
promoted a weakening of the AMS and thus determined the timing and
intensity of arid periods. Local sea-surface salinities also reveal
regional patterns of precipitation in equatorial western Africa.
The high eastern equatorial Atlantic SSTs occur in concert with
seasonally increased insolation at low latitudes, suggesting a
strong response of African monsoonal precipitation to oceanic
conditions at low latitudes.
STUDY NOTES: Planktonic foraminiferal (Globigerinoides ruber pink) Mg/Ca
and stable oxygen isotope (d18O) measurements, plus calculated
Sea Surface Temperature (SST), Sea Surface Salinity (SSS),
and d18O of sea water (d18Osw), from an eastern equatorial
Atlantic sediment core (offshore Cameroon) for the past 21,000 years.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2005/weldeab2005.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2005/weldeab2005.xls
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11