noaa-coral-20247 Tarawa Atoll Mn/Ca, westerly wind index, and d18O Data and Jarvis Island Sr/Ca Data from 1890-1982 Thompson, D.M.; Cole, J.E. Tarawa Atoll Mn/Ca, westerly wind index, and d18O Data and Jarvis Island Sr/Ca Data from 1890-1982 2016-06-09 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/20247 Investigator D.M. Thompson Investigator J.E. Cole earth science paleoclimate corals and sclerosponges delta 18O,Porites sp.,null,per mil PDB,null,corals and sclerosponges,anomalized|detrended,isotope ratio mass spectrometry,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 corals and sclerosponges manganese/calcium,Porites sp.,null,nanomole per mole,null,corals and sclerosponges,raw,graphite furnace atomic absorption spectrometry,N,null earth science paleoclimate climate reconstructions|corals and sclerosponges wind speed,manganese/calcium,null,count,null,climate reconstructions|corals and sclerosponges,null,null,N,westerly wind anomaly index; 10-year sum of quarterly Mn/Ca with a Z-score = 1; 85th percentile earth science paleoclimate corals and sclerosponges strontium/calcium,Porites sp.,null,millimole per mole,null,corals and sclerosponges,detrended|smoothed,inductively-coupled plasma atomic emission spectroscopy,N,10 year smoothed and detrended earth science paleoclimate climate reconstructions|corals and sclerosponges age,null,null,year Common Era,null,climate reconstructions|corals and sclerosponges,null,null,N,null earth science paleoclimate corals and sclerosponges oxygen isotopes earth science paleoclimate corals and sclerosponges trace metals geoscientificInformation ENSO 1890 AD 1990 AD 60 cal yr BP -40 cal yr BP Complete -.37167 1.33 -159.983 172.97 -6 -4 Ocean Pacific Ocean Central Pacific Ocean Kiribati Tarawa Atoll>LATITUDE 1.33>LONGITUDE 172.97 Ocean Pacific Ocean Central Pacific Ocean Jarvis Island>LATITUDE -.37167>LONGITUDE -159.983 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 Thompson, D.M., Cole, J.E., Shen, G.T., Tudhope, A.W., and Meehl, G.A. 2015 Nature Geoscience 8 117-121 10.1038/ngeo2321 Cole, J.E., R.G. Fairbanks, and G.T. Shen 1993 Science 10.1126/science.260.5115.1790

In the western tropical Pacific, the interannual migration of the Indonesian Low convective system causes changes in rainfall that dominate the regional signature of the El Niño-Southern Oscillation (ENSO) system. A 96-year oxygen isotope record from a Tarawa Atoll coral (1°N, 172°E) reflects regional convective activity through rainfall-induced salinity changes. This monthly resolution record spans twice the length of the local climatological record and provides a history of ENSO variability comparable in quality with those derived from instrumental climate data. Comparison of this coral record with a historical chronology of EI Niño events indicates that climate anomalies in coastal South America are occasionally decoupled from Pacific-wide ENSO extremes. Spectral analysis suggests that the distribution of variance in this record has shifted among annual to interannual periods during the present century, concurrent with observed changes in the strength of the Southern Oscillation. STUDY NOTES: Tarawa westerly wind reconstruction (1894-1982) from seasonally resolved measurements of Mn/Ca ratios. Mn/Ca measurement precision- 1s : ±1.6-2 nmol Mn/ mol Ca, d18O measurement precision- ±0.08 per mil. Jarvis Sr/Ca (mmol/mol) 10-year smoothed & detrended for comparison with Tarawa westerly wind reconstruction. Sr/Ca measurement precision- 1s : ±0.044 mmol/mol for in-house coral std. Provided Keywords: Trade winds, ENSO, Hiatus

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/central_pacific/thompson2015/thompson2015-jarvis.txt Formatted Text File; Jarvis Island Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/central_pacific/thompson2015/thompson2015-tarawa.txt Formatted Text File; Tarawa Atoll Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11