noaa-ocean-21010 Bonaire Basin Planktonic Foraminifera Mg/Ca and d18O Data spanning 50 to 21 kyr BP Parker, A.O.; Schmidt, M.W.; Chang, P. Bonaire Basin Planktonic Foraminifera Mg/Ca and d18O Data spanning 50 to 21 kyr BP 2016-12-12 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/21010 Investigator A.O. Parker Investigator M.W. Schmidt Investigator P. Chang 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,one standard deviation,millimole per mole,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography number of samples,null,null,null,null,paleoceanography,null,null,N,Globigerinoides ruber number of analyses 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 paleoceanography magnesium/calcium,Globorotalia truncatulinoides,null,millimole per mole,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography number of samples,null,null,null,null,paleoceanography,null,null,N,Globorotalia truncatulinoides number of analyses earth science paleoclimate paleoceanography depth,null,null,centimeter,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography magnesium/calcium,Globorotalia truncatulinoides,one standard deviation,millimole per mole,null,paleoceanography,null,null,N,null earth science paleoclimate paleocean geochemistry earth science paleoclimate paleocean trace metals in carbonates earth science paleoclimate paleocean oxygen isotopes geoscientificInformation 50000 cal yr BP 21000 cal yr BP Complete 11.33 11.33 -66.63 -66.63 -1079 -1079 Ocean Atlantic Ocean North Atlantic Ocean Caribbean Sea VM12-107>LATITUDE 11.33>LONGITUDE -66.63 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 Parker, Andrew O., Matthew W. Schmidt, and Ping Chang 2015 Paleoceanography 30 1-12 10.1002/2015PA002832

The role of Atlantic Meridional Overturning Circulation (AMOC) as the driver of Dansgaard-Oeschger (DO) variability that characterized Marine Isotope Stage 3 (MIS 3) has long been hypothesized. Although there is ample proxy evidence suggesting DO events were robust features of glacial climate, there is little data supporting a link with AMOC. Recently, modeling studies and subsurface temperature reconstructions have suggested that subsurface warming across the tropical North Atlantic can be used to fingerprint a weakened AMOC during the deglacial because a reduction in the strength of the western boundary current allows warm salinity maximum water of the subtropical gyre to enter the deep tropics. To determine if AMOC variability played a role during the DO cycles of MIS 3, we present new, high-resolution Mg/Ca and d18O records spanning 24-52 kyr from the near-surface dwelling planktonic foraminifera Globigerinoides ruber and the lower-thermocline dwelling planktonic foraminifera Globorotalia truncatulinoides in southern Caribbean core VM12-107 (11.33oN, 66.63oW, 1079m depth). Our subsurface Mg/Ca record reveals abrupt increases in Mg/Ca ratios (the largest equal to a 4oC warming) during the interstadial-stadial transition of most DO events during this period. This change is consistent with reconstructions of subsurface warming events associated with cold events across the deglacial using the same core. Additionally, our data support the conclusion reached by a recently published study from the Florida Straits that AMOC did not undergo significant reductions during Heinrich Events 2 and 3. This record presents some of the first high-resolution marine sediment derived evidence for variable AMOC during MIS 3. STUDY NOTES: Provided Keywords: D-O Events, G. ruber, abrupt climate change, Marine Isotope Stage 3, subsurface temperature, Mg/Ca temperature

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/parker2015/parker2015.txt Formatted Text File; VM12-107 Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11