noaa-coral-20125 Jarvis Island, Equatorial Pacific Sr/Ca Records and Sea Surface Temperature Data 1996-2012 Alpert, A.E.; Cohen, A.L.; Oppo, D.W.; DeCarlo, T.M.; Gove, J.M.; Young, C.W. Jarvis Island, Equatorial Pacific Sr/Ca Records and Sea Surface Temperature Data 1996-2012 2016-05-05 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/20125 Investigator A.E. Alpert Investigator A.L. Cohen Investigator D.W. Oppo Investigator T.M. DeCarlo Investigator J.M. Gove Investigator C.W. Young 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,Porites sp.,null,millimole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,null earth science paleoclimate corals and sclerosponges strontium/calcium,Porites sp.,one standard deviation,millimole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,null earth science paleoclimate instrumental sea surface temperature,null,null,degree Celsius,null,instrumental,interpolated,null,N,from temperature logger earth science paleoclimate corals and sclerosponges chemistry geoscientificInformation 1996 AD 2012 AD -46 cal yr BP -62 cal yr BP Complete -.3739 -.3691 -160.0083 -159.9823 -13 -5 Ocean Pacific Ocean Central Pacific Ocean E500 Jarvis Island>LATITUDE -.3715>LONGITUDE -159.9823 Ocean Pacific Ocean Central Pacific Ocean E016 Jarvis Island>LATITUDE -.3739>LONGITUDE -159.9834 Ocean Pacific Ocean Central Pacific Ocean W037 Jarvis Island>LATITUDE -.3691>LONGITUDE -160.0082 Ocean Pacific Ocean Central Pacific Ocean W490 Jarvis Island>LATITUDE -.3696>LONGITUDE -160.0083 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 Alice E. Alpert, Anne L. Cohen, Delia W. Oppo, Thomas M. DeCarlo, Jamison M. Gove, and Charles W. Young 2016 Paleoceanography 31 2 252-265 10.1002/2015PA002897 http://onlinelibrary.wiley.com/doi/10.1002/2015PA002897/pdf

Coral Sr/Ca is widely used to reconstruct past ocean temperatures. However, some studies report different Sr/Ca-temperature relationships for conspecifics on the same reef, with profound implications for interpretation of reconstructed temperatures. We assess whether these differences are attributable to small-scale oceanographic variability or "vital effects" associated with coral calcification, and quantify the effect of inter-colony differences on temperature estimates and uncertainties. Sr/Ca records from four massive Porites colonies growing on the east and west sides of Jarvis Island, central equatorial Pacific, were compared with in situ logger temperatures spanning 2002-2012. In general, Sr/Ca captured the occurrence of inter-annual SST events but their amplitude was not consistently recorded by any of the corals. No long-term trend was identified in the instrumental data yet Sr/Ca of one coral implied a statistically significant cooling trend while that of its neighbor implied a warming trend. Slopes of Sr/Ca- temperature regressions from the four different colonies were within error, but offsets in mean Sr/Ca rendered the regressions statistically distinct. Assuming these relationships represent the full range of Sr/Ca-temperature calibrations in Jarvis Porites, we assessed how well Sr/Ca of a non-living coral with an unknown Sr/Ca-temperature relationship can constrain past temperatures. Our results indicate that standard error of prediction methods underestimate the actual error as we could not reliably reconstruct the amplitude or frequency of ENSO events as large as ±2°C. Our results underscore the importance of characterizing the full range of temperature-Sr/Ca relationships at each study site to estimate true error. STUDY NOTES: Chronology based on band counting of CT scan. Provided Keywords: biomineralization, SST

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/central_pacific/alpert2016/alpert2016-w037.txt Formatted Text File; W037 Sr/Ca Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/central_pacific/alpert2016/alpert2016-w490.txt Formatted Text File; W490 Sr/Ca Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/central_pacific/alpert2016/alpert2016-e500.txt Formatted Text File; E500 Sr/Ca Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/central_pacific/alpert2016/alpert2016-e016.txt Formatted Text File; E016 Sr/Ca Data USA/NOAA DIF Version 9.8.4 2019-06-06 2019-06-06