noaa-coral-10373 eng; USA utf8 dataset Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2018-12-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Palmyra Island Coral 110 Year Sr/Ca SST and d18Osw 2011-02-24 publication noaa-coral-10373 NCEI DSI 1200_01 Nurhati, I.S. originator Nurhati, I.S. author Cobb, K.M. originator Cobb, K.M. author Di Lorenzo, E. originator Di Lorenzo, E. author NOAA National Centers for Environmental Information publisher tableDigital This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Coral. The data include parameters of corals and sclerosponges with a geographic location of Central Pacific Ocean. The time period coverage is from 64 to -48 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past climate and ocean environment derived from stable isotope, trace metal, and other measurements made on corals and sclerosponges. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. completed Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncdc.noaa.gov/c/images/pc-default-coral.png Paleoclimatology - Coral and Sclerosponge PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Biological Records > Coral Deposits Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records > Coral Deposits Earth Science > Paleoclimate > Ocean/Lake Records > Coral Deposits theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher earth science > paleoclimate > corals and sclerosponges earth science > paleoclimate > corals and sclerosponges earth science > paleoclimate > climate reconstructions|corals and sclerosponges earth science > paleoclimate > climate reconstructions|corals and sclerosponges earth science > paleoclimate > climate reconstructions|corals and sclerosponges earth science > paleoclimate > corals and sclerosponges > oxygen isotopes earth science > paleoclimate > corals and sclerosponges > chemistry theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Sea Surface Temperature Reconstruction Warm Pool theme Ocean > Pacific Ocean > Central Pacific Ocean> Palmyra Island > LATITUDE 5.8664 > LONGITUDE -162.12 place otherRestrictions Cite as: Nurhati, I.S.; Cobb, K.M.; Di Lorenzo, E. (2011-02-24): NOAA/WDS Paleoclimatology - Palmyra Island Coral 110 Year Sr/Ca SST and d18Osw . [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/10373. Accessed [date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. otherRestrictions None otherRestrictions 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. eng; USA geoscientificInformation Date Range: 1886 AD to 1998 AD; Date Range: 64 cal yr BP to -48 cal yr BP; -162.12 -162.12 5.8664 5.8664 Study Coordinates 5.8664 -162.12 1886 1998 STUDY NOTES: This dataset contains coral-derived sea-surface temperature (SST, via Sr/Ca) and salinity (SSS, via the oxygen isotopic composition of seawater or d18Osw) reconstructions from Palmyra Island of the Line Islands chain in the central tropical Pacific, for the period 1886-1998. Cobb et al. [2001] presented the century-long coral oxygen isotopic (d18O) record from Palmyra, and here we present the century-long Sr/Ca and d18Osw records from Palmyra. The late 20th century portion of the Sr/Ca and d18Osw records was presented in Nurhati et al.[2009]. We measured coral d18O values on a GV Isoprime-Multiprep mass spectrometer with an analytical precision of ± 0.05‰ (1sigma), and Sr/Ca ratios with a Jobin Yvon Ultima 2C Inductively Coupled Plasma-Optical Emission Spectrometer (ICP-OES) with an analytical precision of ± 0.07% or ± 0.006 mmol/mol(1s) using the nearest-neighbor correction method from Schrag [1999]. We used the monthly 1ºx1º IGOSS SST dataset [Reynolds et al., 2002] to calibrate Sr/Ca ratios via reduced major axis regression, where (SST)palm = 130.43 – 11.39 x (Sr/Ca)palm (Nov 1981-Mar 1998; R=-0.71; CI > 99%). We derive the oxygen isotopic composition of seawater (d18Osw) by subtracting the Sr/Ca-derived SST contribution from coral d18O following the method outlined in Ren et al. [2003]. Fairbanks et al. [1997] find an empirical linear relationship between d18Osw and SSS in the central tropical Pacific, so we use the d18Osw records to reconstruct SSS variability associated with changes in the hydrological balance. Note: Coral d18O data has been previously published by Cobb et el. (2001). Sr/Ca data from 1981-1998 was used for the Sr/Ca-SST calibration. Coral d18O, Sr/Ca-derived SST and d18Osw data from 1886 to 1998 were used in the trend calculations reported in the paper. ABSTRACT SUPPLIED BY ORIGINATOR: Accurate projections of future temperature and precipitation patterns in many regions of the world depend on quantifying anthropogenic signatures in tropical Pacific climate against its rich background of natural variability. However, the detection of anthropogenic signatures in the region is hampered by the lack of continuous, century-long instrumental climate records. This study presents coral-based sea-surface temperature (SST) and salinity proxy records from Palmyra Island in the central tropical Pacific over the 20th century, based on coral Sr/Ca and the oxygen isotopic composition of seawater (?18OSW), respectively. On interannual timescales, the Sr/Ca-based SST record captures both eastern- and central- Pacific warming "flavors" of El Niño-Southern Oscillation (ENSO) variability (R=0.65 and 0.67, respectively). On decadal timescales, the SST proxy record is highly correlated to the North Pacific Gyre Oscillation (NPGO; R=-0.85), reflecting strong dynamical links between the central Pacific warming mode and extratropical decadal climate variability. Decadal-scale salinity variations implied by the coral-based d18OSW record are significantly correlated with the Pacific Decadal Oscillation (PDO; R=0.54). The salinity proxy record is dominated by an unprecedented trend towards lighter ?18OSW values since the mid-20th century, implying that a significant freshening has taken place in the region, in line with climate model projections showing enhanced hydrological patterns under greenhouse forcing. Taken together, the new coral records suggest that low-frequency SST and salinity variations in the central tropical Pacific are controlled by different sets of dynamics, and that recent hydrological trends in this region may be related to anthropogenic climate change. DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Customer Engagement Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern distributor In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media. Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-coral-10373 HTTPS Landing Page NCEI landing page for this dataset Dataset landing page with general information and links to access the data. information https://www.ncdc.noaa.gov/paleo/study/10373 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/coral-sclerosponge HTTPS Information NCEI Coral Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/coral/east_pacific/nurhati2011_noaa.txt HTTPS Download /coral/east_pacific/nurhati2011_noaa.txt Coral download https://www1.ncdc.noaa.gov/pub/data/paleo/coral/east_pacific/palmyra2011.xls HTTPS Download /coral/east_pacific/palmyra2011.xls Coral download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25