noaa-coral-17035 Hon Tre Island, Vietnam 33 Year Paired Monthly Sr/Ca and d18O Data Bolton, A.; Goodkin, N.F.; Hughen, K.A.; Ostermann, D.R.; Vo, S.T.; Phan, H.K. Hon Tre Island, Vietnam 33 Year Paired Monthly Sr/Ca and d18O Data 2014-08-14 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/17035 Investigator A. Bolton Investigator N.F. Goodkin Investigator K.A. Hughen Investigator D.R. Ostermann Investigator S.T. Vo Investigator H.K. Phan earth science paleoclimate corals and sclerosponges strontium/calcium,Porites lutea,null,millimole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma atomic emission spectroscopy,N,null earth science paleoclimate corals and sclerosponges age,null,null,year Common Era,null,corals and sclerosponges,null,null,N,null earth science paleoclimate climate reconstructions|corals and sclerosponges delta 18O,Porites lutea,null,per mil VPDB,null,climate reconstructions|corals and sclerosponges,interpolated,isotope ratio mass spectrometry,N,null earth science paleoclimate corals and sclerosponges depth,null,null,millimeter,null,corals and sclerosponges,null,null,N,null earth science paleoclimate corals and sclerosponges oxygen isotopes earth science paleoclimate corals and sclerosponges chemistry geoscientificInformation 1977 AD 2010 AD -27 cal yr BP -60 cal yr BP Complete 12.21386 12.21386 109.30486 109.30486 -8 -8 Continent Asia Southeastern Asia Vietnam Hon Tre Island>LATITUDE 12.21386>LONGITUDE 109.30486 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

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Boulder CO 80305-3328 USA online ASCII A. Bolton, N.F. Goodkin, K. Hughen, D.R. Ostermann, S.T. Vo, H.K. Phan 2014 Palaeogeography, Palaeoclimatology, Palaeoecology 410 233-243 10.1016/j.palaeo.2014.05.047 http://www.sciencedirect.com/science/article/pii/S0031018214003034

Paired strontium-to-calcium (Sr/Ca) and d18O measurements for two Porites lutea corals recovered from Hon Tre Island, Vietnam, are strongly correlated to sea surface temperature (SST) and precipitation at monthly to interannual time-scales. Least squares linear regression of monthly Sr/Ca to SST shows a strong, significant correlation (r2 = 0.77, p < .0001), with root mean square residuals of 0.9 °C. 3-year averaged (binned) Sr/Ca for wet (Sep-Nov) and dry (Jan-Mar) seasons separately captures SST variability at interannual time scales (Sr/Ca RMSR = 0.42 °C and 0.70 °C for wet and dry seasons, respectively). Coral d18O correlates weakly to SST at seasonal and interannual time scales for wet and dry seasons, with significant anomalies (d18O RMSR = 2.4 °C and 1.65 °C, respectively). Correcting the SST influence on coral d18O using paired Sr/Ca values provides estimates of d18O of seawater (d18Osw). 3-year averaged d18Osw during the wet season shows a significant correlation to local precipitation (r2 = 0.54, p = 0.01). These results show that coral Sr/Ca in this location accurately reflects SST at a number of timescales, and that seawater d18O composition in the wet season is controlled by local precipitation, largely unmodified by ocean circulation during the winter monsoon. This study highlights the sensitivity and utility of coral geochemistry in this region for reliably reconstructing SST and monsoonal precipitation. STUDY NOTES: Paired strontium-to-calcium (Sr/Ca) and d18O measurements at monthly resolution for two Porites lutea corals (BB and TN) recovered from Hon Tre Island, Vietnam. The coral Sr/Ca data were determined by inductively coupled plasma optical emission spectroscopy and oxygen isotopes were determined using isotope ratio mass spectrometry ionisation mass spectrometry. Blank sections in the beginning of TN represent no samples present (i.e. this was where the BB coral was younger than the TN coral). Other blanks in both BB and TN represent areas of growth that were not drillable (i.e. sections between coral slabs or areas where coralite growth was not optimal, see manuscript).

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/hon-tre2014.txt Data File; Hon Tre Island Paired Porites Monthly Sr/Ca and d18O Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11