Eastern equatorial Atlantic trace metal, oxygen and carbon isotope data and bottom water temperature between 10 and 21 kyr BP Weldeab, S.; Friedrich, T.; Timmermann, A.; Schneider, R.R. Weldeab, S. Friedrich, T. Timmermann, A. Schneider, R.R. Other Reconstruction earth science/paleoclimate/climate reconstructions|paleoceanography (sea water temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,bottom water temperature calculated using Mg/Ca[mmol/mol]?=?(0.36?±?0.02)*BWT[°C]?+?2.22?±?0.19; r-squared=0.92) earth science/paleoclimate/climate reconstructions|paleoceanography (sea water temperature,magnesium/calcium,unspecified error lower bound,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,bottom water temperature calculated using Mg/Ca[mmol/mol]?=?(0.36?±?0.02)*BWT[°C]?+?2.22?±?0.19; r-squared=0.92) earth science/paleoclimate/climate reconstructions|paleoceanography (sea water temperature,magnesium/calcium,unspecified error upper bound,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,bottom water temperature calculated using Mg/Ca[mmol/mol]?=?(0.36?±?0.02)*BWT[°C]?+?2.22?±?0.19; r-squared=0.92) 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,bottom water) earth science/paleoclimate/paleoceanography (delta 13C,Cibicidoides pachyderma,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 (barium/calcium,Cibicidoides pachyderma,null,micromole per mole,null,paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (depth,null,null,centimeter,null,climate reconstructions|paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (delta 18O,delta 18O|magnesium/calcium|sea water,unspecified error lower bound,per mil SMOW,null,climate reconstructions|paleoceanography,null,null,N,bottom water) earth science/paleoclimate/climate reconstructions|paleoceanography (delta 18O,delta 18O|magnesium/calcium|sea water,unspecified error upper bound,per mil SMOW,null,climate reconstructions|paleoceanography,null,null,N,bottom water) earth science/paleoclimate/paleoceanography (magnesium/calcium,benthic foraminifer,null,millimole per mole,null,paleoceanography,null,null,N,globobulimina spp.) earth science/paleoclimate/paleoceanography (delta 18O,Cibicidoides pachyderma,null,per mil VPDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (age,null,null,calendar year before present,null,climate reconstructions|paleoceanography,null,null,N,null) 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 earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (MD03-2707>LATITUDE 2.502>LONGITUDE 9.395) We present a benthic foraminiferal multiproxy record of eastern equatorial Atlantic (EEA) middepth water (1295?m) covering the last deglacial. We show that EEA middepth water temperatures were elevated by 3.9?±?0.5°C and 5.2?±?1.2°C during Heinrich event 1 (H1) and Younger Dryas (YD), respectively. The radiocarbon content of the EEA middepth during H1 and YD is relatively low and comparable to the values of the pre-H1 episode and Bølling-Allerød, respectively. A transient Earth system model simulation, which mimics the observed deglacial Atlantic Meridional Overturning Circulation (AMOC) history, qualitatively reproduces the major features of the EEA proxy records. The simulation results suggest that fresh water-induced weakening of the AMOC leads to a vertical shift of the horizon of Southern Ocean-sourced water and a stronger influence of EEA sea surface temperatures via mixing. Our findings reaffirm the lack of a distinctive signature of radiocarbon depletion and therefore do not support the notion of interhemispheric exchanges of strongly radiocarbon-depleted middepth water across the tropical Atlantic during H1 and YD. Our temperature reconstruction presents a critical zonal and water depth extension of existing tropical Atlantic data and documents a large-scale and basin-wide warming across the thermocline and middepth of the tropical Atlantic during H1 and YD. Significant difference in the timing and pace of H1 middepth warming between tropical Atlantic and North Atlantic likely points to a limited role of the tropical Atlantic middepth warming in the rapid heat buildup in the North Atlantic middepth. STUDY NOTES: Provided Keywords: benthic foraminiferal trace metals, radio carbon, isotope record, last deglacial, Younger Dyras, Heinrich events 1, late glacial maximum NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Weldeab, S. Investigator : Friedrich, T. Investigator : Timmermann, A. Investigator : Schneider, R.R. 2017-06-26 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/22276 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2016-poc/weldeab2016-poc-bwt.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2016-poc/weldeab2016-poc-isobaca.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2016-poc/weldeab2016-poc-d18osw.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2016-poc/weldeab2016-poc-14c.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2016-poc/weldeab2016-poc-bwt.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2016-poc/weldeab2016-poc-isobaca.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2016-poc/weldeab2016-poc-d18osw.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2016-poc/weldeab2016-poc-14c.txt English https://www.ncdc.noaa.gov/paleo/study/22276 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2016-poc/weldeab2016-poc-bwt.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2016-poc/weldeab2016-poc-isobaca.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2016-poc/weldeab2016-poc-d18osw.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weldeab2016-poc/weldeab2016-poc-14c.txt Weldeab, S., T. Friedrich, A. Timmermann, and R.R. Schneider2016Strong mid-depth warming and weak radiocarbon imprints in the equatorial Atlantic during Heinrich 1 and Younger DryasPaleoceanography311070-108310.1002/2016PA002957 START YEAR: 20605 cal yr BP * END YEAR: 9984 cal yr BP 9.395 2.502 9.395 2.502