noaa-ocean-5943
Benway et al. 2006 Eastern Pacific Warm Pool ODP1242 Paleosalinity Data
Benway, H.M.; Mix, A.C.; Haley, B.A.; Klinkhammer, G.P.
Benway et al. 2006 Eastern Pacific Warm Pool ODP1242 Paleosalinity Data
2006-08-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/5943
Investigator
H.M.
Benway
Investigator
A.C.
Mix
Investigator
B.A.
Haley
Investigator
G.P.
Klinkhammer
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,glycerol dialkyl glycerol tetraether index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,core top sediment; Globigerinoides ruber; Anand et al. (2003) calibration
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,null
earth science
paleoclimate
paleoceanography
magnesium/calcium,Globigerinoides ruber,null,millimole per mole,null,paleoceanography,null,null,N,core top sediment
earth science
paleoclimate
paleoceanography
delta 18O,Neogloboquadrina dutertrei,null,per mil VPDB,null,paleoceanography,null,null,N,core top sediment
earth science
paleoclimate
paleoceanography
age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
magnesium/calcium,Globigerinoides ruber,null,dimensionless,null,paleoceanography,null,null,N,null
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,Globigerinoides ruber white
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
latitude,null,null,degree,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
delta 18O,Neogloboquadrina dutertrei,null,per mil VPDB,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
age,null,null,calendar year before present,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
magnesium/calcium,Globigerinoides ruber,null,millimole per mole,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
delta 18O,Globigerinoides ruber,null,per mil VPDB,null,paleoceanography,null,null,N,null
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,Globigerinoides ruber; Anand et al. (2003) calibration
earth science
paleoclimate
paleoceanography
longitude,null,null,degree,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
delta 18O,Globigerinoides ruber,null,per mil VPDB,null,paleoceanography,null,null,N,core top sediment
earth science
paleoclimate
paleoceanography
depth,null,null,centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleocean
trace metals in carbonates
earth science
paleoclimate
paleocean
biomarkers
earth science
paleoclimate
paleocean
oxygen isotopes
earth science
paleoclimate
paleocean
reconstruction
earth science
paleoclimate
paleocean
age control
geoscientificInformation
23491 cal yr BP
492 cal yr BP
Complete
7.85583
7.85583
-83.60833
-83.60694
-1368
-1364
Ocean
Pacific Ocean
Eastern Pacific Ocean
ME0005A-43JC>LATITUDE 7.85583>LONGITUDE -83.60833
Ocean
Pacific Ocean
Eastern Pacific Ocean
ODP1242>LATITUDE 7.85583>LONGITUDE -83.60694
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
Benway, H.M., A.C. Mix, B.A. Haley, and G.P. Klinkhammer. 2006. Eastern Pacific Warm Pool paleosalinity and climate variability: 0–30 kyr. Paleoceanography, 21, PA3008. 10.1029/2005PA001208.
Multiproxy geologic records of δ18O and Mg/Ca in fossil foraminifera from sediments under the Eastern Pacific Warm Pool (EPWP) region west of Central America document variations in upper ocean temperature, pycnocline strength, and salinity (i.e., net precipitation) over the past 30 kyr. Although evident in the paleotemperature record, there is no glacial-interglacial difference in paleosalinity, suggesting that tropical hydrologic changes do not respond passively to high-latitude ice sheets and oceans. Millennial variations in paleosalinity with amplitudes as high as ~4 practical salinity units occur with a dominant period of ~3-5 ky during the glacial/deglacial interval and ~1.0-1.5 ky during the Holocene. The amplitude of the EPWP paleosalinity changes greatly exceeds that of published Caribbean and western tropical Pacific paleosalinity records. EPWP paleosalinity changes correspond to millennial-scale climate changes in the surface and deep Atlantic and the high northern latitudes, with generally higher (lower) paleosalinity during cold (warm) events. In addition to Intertropical Convergence Zone (ITCZ) dynamics, which play an important role in tropical hydrologic variability, changes in Atlantic-Pacific moisture transport, which is closely linked to ITCZ dynamics, may also contribute to hydrologic variations in the EPWP. Calculations of interbasin salinity average and interbasin salinity contrast between the EPWP and the Caribbean help differentiate long-term changes in mean ITCZ position and Atlantic-Pacific moisture transport, respectively.
STUDY NOTES: Mg/Ca SST = ln (Mg/Ca/0.38)/0.09 [Anand et al., 2003]. d18Oseawater calculated from paleotemperature equation of Thunell et al. (1999) sediment trap G. ruber, which is the same as Bemis et al. (1998) cultured O. universa high light.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp1242-tab.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/benway2006/benway2006.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/m5a-43jc-tab.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11