Florida Straits KNR166-2JPC51 9000 Year d18O, Mg/Ca SST, and d18Osw Data Schmidt, M.W.; Weinlein, W.A.; Marcantonio, F.; Lynch-Stieglitz, J. Schmidt, M.W. Weinlein, W.A. Marcantonio, F. Lynch-Stieglitz, J. 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 white,null,per mil VPDB,null,paleoceanography,null,null,N,250-355 micron) earth science/paleoclimate/paleoceanography (magnesium/calcium,Globigerinoides ruber white,null,millimole per mole,null,paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (delta 18O,delta 18O|magnesium/calcium|sea water,null,per mil SMOW,null,climate reconstructions|paleoceanography,null,null,N,using G. ruber white) earth science/paleoclimate/climate reconstructions|paleoceanography (sea surface temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,using G. ruber white) earth science/paleoclimate/climate reconstructions|paleoceanography (delta 18O,delta 18O|magnesium/calcium|sea water,null,per mil SMOW,null,climate reconstructions|paleoceanography,corrected,null,N,using G. ruber white; corrected for ice volume) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (KNR166-2-51JPC>LATITUDE 24.4117>LONGITUDE -83.219) Previous studies showed that sea surface salinity (SSS) in the Florida Straits as well as Florida Current transport covaried with changes in North Atlantic climate over the past two millennia. However, little is known about earlier Holocene hydrographic variability in the Florida Straits. Here, we combine Mg/Ca-paleothermometry and stable oxygen isotope measurements on the planktonic foraminifera Globigerinoides ruber (white variety) from Florida Straits sediment core KNR166-2 JPC 51 (24 deg 24.70'N, 83 deg 13.14'W, 198 m deep) to reconstruct a high-resolution (~25 yr/sample) early to mid Holocene record of sea surface temperature and d18OSW (a proxy for SSS) variability. After removing the influence of global d18OSW change due to continental ice volume variability, we find that early Holocene SSS enrichments are associated with increased evaporation/precipitation ratios in the Florida Straits during periods of reduced solar forcing, increased ice rafted debris in the North Atlantic and the development of more permanent El Niño-like conditions in the eastern equatorial Pacific. When considered with previous high-resolution reconstructions of Holocene tropical atmospheric circulation changes, our results provide evidence that variations in solar forcing over the early Holocene had a significant impact on the global tropical hydrologic cycle. STUDY NOTES: High resolution (~25 year) Holocene d18O, Mg/Ca-paleothermometry, and reconstructed d18OSW measurements on the planktonic foraminifera Globigerinoides ruber (white variety) from Florida Straits. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Schmidt, M.W. Investigator : Weinlein, W.A. Investigator : Marcantonio, F. Investigator : Lynch-Stieglitz, J. 2012-12-12 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/13608 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/schmidt2012/schmidt2012.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/schmidt2012/schmidt2012.txt English https://www.ncdc.noaa.gov/paleo/study/13608 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/schmidt2012/schmidt2012.txt Matthew W. Schmidt, William A. Weinlein, Franco Marcantonio, and Jean Lynch-Stieglitz. 2012. Solar forcing of Florida Straits surface salinity during the early Holocene. Paleoceanography, 27, PA3204. DOI: 10.1029/2012PA002284 START YEAR: 9149 cal yr BP * END YEAR: 1488 cal yr BP -83.219 24.4117 -83.219 24.4117