Anegada, British Virgin Islands Sr/Ca Coral Data from 1948-2008 AD Kilbourne, K.H.; Xu, Y.-Y.; Pearson, S. Kilbourne, K.H. Xu, Y.-Y. Pearson, S. earth science/paleoclimate/corals and sclerosponges (sample identification,null,null,null,null,corals and sclerosponges,null,null,C,null) earth science/paleoclimate/corals and sclerosponges (depth,null,null,millimeter,null,corals and sclerosponges,null,null,N,Distance to the surface layer) 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,Diploria labyrinthiformis,null,millimole per mole,null,corals and sclerosponges,raw,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/corals and sclerosponges earth science/paleoclimate/corals and sclerosponges (Soldier's Point, Anegada>LATITUDE 18.75>LONGITUDE -64.35) The coral species Diploria strigosa is a promising archive for paleoclimate reconstruction in the tropical Atlantic, but limited work has been accomplished thus far to quantify the relationship between strontium to calcium ratios and sea surface temperatures in this species. In this study, we collected three modern D. strigosa coral colonies from Anegada, British Virgin Islands to refine the use of this species as a paleoclimate archive. Three regression techniques including ordinary lease squares, reduced major axis, and weighted least squares were used to assess how assumptions implicit in these regression methods influence the calibration. Our analysis demonstrated that regression slopes were strongly impacted by the assumptions about data uncertainty. We recommend using the unbiased weighted least squares regression technique for calibrating the Sr/Ca paleothermometer, especially when precise local sea surface temperature data are unavailable. Combining our Sr/Ca data with previously published data from this species results in a mult-site, multi-colony temperature sensitivity of -0.046(±< 0.001) mmol/mol/°C for mean-centered monthly data, -0.059(±0.001) mmol/mol/°C for monthly anomalies, and -0.063(±0.004) for annual anomalies. We suggest these relationships are the best available characterization of the temperature dependence of Sr/Ca in D. strigosa, and can be utilized in future paleoclimate reconstructions. STUDY NOTES: Three cores from coral boulders found on the beach berm at Soldier's Point, Anegada Provided Keywords: Diploria strigosa, Sr/Ca NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Kilbourne, K.H. Investigator : Xu, Y.-Y. Investigator : Pearson, S. 2016-12-12 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/21011 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/kilbourne2015/kilbourne2015-anegada.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/kilbourne2015/kilbourne2015-anegada.txt English https://www.ncdc.noaa.gov/paleo/study/21011 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/kilbourne2015/kilbourne2015-anegada.txt Xu, Yuan-Yuan, Sean Pearson, and K. Halimeda Kilbourne2015Assessing coral Sr/Ca-SST calibration techniques using the species Diploria strigosaPalaeogeography, Palaeoclimatology, Palaeoecology440N.5046353-36210.1016/j.palaeo.2015.09.016 START YEAR: 1948 AD * END YEAR: 2008 AD -64.4 18.7 -64.3 18.8