Montego Bay, Pedro Bank - Sclerosponge Oxygen Isotope and Sr/Ca Data Haase-Schramm, A.; Böhm, F.; Eisenhauer, A.; Dullo, W.-C.; Joachimski, M.M.; Hansen, B.; Reitner, J. Haase-Schramm, A. Böhm, F. Eisenhauer, A. Dullo, W.-C. Joachimski, M.M. Hansen, B. Reitner, J. earth science/paleoclimate/corals and sclerosponges (age,null,null,year Common Era,null,corals and sclerosponges,null,null,N,null) earth science/paleoclimate/corals and sclerosponges (strontium/calcium,Ceratoporella nicholsoni,null,millimole per mole,null,corals and sclerosponges,raw,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/corals and sclerosponges (delta 18O,Ceratoporella nicholsoni,null,per mil PDB,null,corals and sclerosponges,raw,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/corals and sclerosponges (delta 18O,Ceratoporella nicholsoni,null,per mil PDB,null,corals and sclerosponges,composited,isotope ratio mass spectrometry,N,stack) earth science/paleoclimate/corals and sclerosponges (strontium/calcium,Ceratoporella nicholsoni,two standard deviations,millimole per mole,null,corals and sclerosponges,raw,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/corals and sclerosponges (delta 18O,Ceratoporella nicholsoni,null,per mil PDB,null,corals and sclerosponges,raw,isotope ratio mass spectrometry,N,transect #1) earth science/paleoclimate/corals and sclerosponges (delta 18O,Ceratoporella nicholsoni,null,per mil PDB,null,corals and sclerosponges,raw,isotope ratio mass spectrometry,N,transect #2) earth science/paleoclimate/corals and sclerosponges (delta 18O,Ceratoporella nicholsoni,null,per mil PDB,null,corals and sclerosponges,raw,isotope ratio mass spectrometry,N,transect #3) earth science/paleoclimate/corals and sclerosponges earth science/paleoclimate/corals and sclerosponges (Pedro Bank>LATITUDE 17.53>LONGITUDE -78.97) (Montego Bay>LATITUDE 18.47>LONGITUDE -77.97) We investigate aragonitic skeletons of the Caribbean sclerosponge Ceratoporella nicholsoni from Jamaica, 20 m below sea level (mbsl), and Pedro Bank, 125 mbsl. We use d18O and Sr/Ca ratios as temperature proxies to reconstruct the Caribbean mixed layer and thermocline temperature history since 1400 A.D. with a decadal time resolution. Our age models are based on U/Th dating and locating of the radiocarbon bomb spike. The modern temperature difference between the two sites is used to tentatively calibrate the C. nicholsoni Sr/Ca thermometer. The resulting calibration points to a temperature sensitivity of Sr/Ca in C. nicholsoni aragonite of about -0.1 mmol/mol/K. Our Sr/Ca records reveal a pronounced warming from the early 19th to the late 20th century, both at 20 and 125 mbsl. Two temperature minima in the shallow water record during the late 17th and early 19th century correspond to the Maunder and Dalton sunspot minima, respectively. Another major cooling occurred in the late 16th century and is not correlatable with a sunspot minimum. The temperature contrast between the two sites decreased from the 14th century to a minimum in the late 17th century and subsequently increased to modern values in the early 19th century. This is interpreted as a long-term deepening and subsequent shoaling of the Caribbean thermocline. The major trends of the Sr/Ca records are reproduced in both specimens but hardly reflected in the d18O records. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Haase-Schramm, A. Investigator : Böhm, F. Investigator : Eisenhauer, A. Investigator : Dullo, W.-C. Investigator : Joachimski, M.M. Investigator : Hansen, B. Investigator : Reitner, J. 2003-01-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/1878 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/haase-schramm2003-ce96-d18o_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/haase-schramm2003-pb19-d18o_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/haase-schramm2003-ce96-srca_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/haase-schramm2003-pb19-srca_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/haase-schramm2003-ce96-d18o_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/haase-schramm2003-pb19-d18o_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/haase-schramm2003-ce96-srca_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/haase-schramm2003-pb19-srca_noaa.txt English https://www.ncdc.noaa.gov/paleo/study/1878 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/haase-schramm2003-ce96-d18o_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/haase-schramm2003-pb19-d18o_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/haase-schramm2003-ce96-srca_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/haase-schramm2003-pb19-srca_noaa.txt Haase-Schramm, A., F. Böhm, A. Eisenhauer, W.C. Dullo, M.M. Joachimski, B. Hansen, and J. Reitner. 2003. Sr/Ca ratios and oxygen isotopes from sclerosponges: Temperature history of the Caribbean mixed layer and thermocline during the Little Ice Age. Paleoceanography 18(3):1073. START YEAR: 1344 AD * END YEAR: 1992 AD -78.97 17.53 -77.97 18.47