noaa-coral-10271 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 - Padang Bai, Indonesia 20th Century Coral 14C Data 2011-01-25 publication noaa-coral-10271 NCEI DSI 1200_01 Guilderson, T.P. originator Guilderson, T.P. author Fallon, S.R. originator Fallon, S.R. author Moore, M.D. originator Moore, M.D. author Schrag, D.P. originator Schrag, D.P. author Charles, C.D. originator Charles, C.D. 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 Indonesia. The time period coverage is from 13 to -40 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 > corals and sclerosponges earth science > paleoclimate > corals and sclerosponges > carbon isotopes 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 Ocean > Indian Ocean > Indonesia> Padang Bai > LATITUDE -8.2333 > LONGITUDE 115.5 place otherRestrictions Cite as: Guilderson, T.P.; Fallon, S.R.; Moore, M.D.; Schrag, D.P.; Charles, C.D. (2011-01-25): NOAA/WDS Paleoclimatology - Padang Bai, Indonesia 20th Century Coral 14C Data . [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/10271. 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: 1937 AD to 1990 AD; Date Range: 13 cal yr BP to -40 cal yr BP; 115.5 115.5 -8.2333 -8.2333 Study Coordinates -8.2333 115.5 1937 1990 STUDY NOTES: Coral radiocarbon (Delta-14C) on untreated, low-speed drilled samples. Precision is ~±3.5 per mil as documented by an in-house homogenized coral standard, and presented as AGE CORRECTED DELTA-14C [see Stuiver and Polach, 1977]. Coral cores were drilled in January 1990 from an exceptionally large Porites colony growing at a depth of 5 m at Padang Bai, Bali on the southern edge of Lombok Strait. The recovered coral cores span nearly 300 yr of growth and a long (1 mm resolved) stable isotope record can be found in the work of Charles et al. [2003]. We have focused our radiocarbon work on the uppermost ~70 cm of the coral which mainly covers the pre to postbomb period. The cores were cut into 9 mm slabs, ultrasonically cleaned in distilled water, and air dried. After identifying the major vertical growth axis, the coral was sequentially sampled at 2 mm increments with a low-speed drill. Where necessary, we overlapped parallel sample tracts in order to adequately splice sections together. Splits (1 mg) were reacted in vacuo in a modified autocarbonate device at 90C and the purified CO2 analyzed on a gas source stable isotope ratio mass spectrometer. The remaining sample splits (8-9 mg) were placed in individual reaction chambers, evacuated, heated, and acidified with orthophosphoric acid at 90C. The evolved CO2 was purified, trapped, and converted to graphite in the presence of iron catalyst and a stoichiometric excess of hydrogen [Vogel et al., 1987]. Graphite targets were measured at the Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory. Radiocarbon results are reported in conventional per mil (%) notation as age corrected DELTA(14C) as defined by Stuiver and Polach [1977] and include a background correction using 14C-free calcite, and the d13C correction obtained from the stable isotope results. Analytical precision and accuracy of the radiocarbon measurements is ~±3.5% (1s sd). We created a preliminary age model based upon the seasonal structure within the d13C record and sclerochronology. The final, and reported age model is based on tuning preliminary age model relating the coral d18O to the seasonal cycle of (d18Ow) salinity and temperature. The seasonal extremes were anchored to March/April and September of each year consistent with instrumental observations of temperature, salinity, and cloudiness. In keeping with the definition of "high-precision radiocarbon" [Stuiver and Polach, 1977] the data have been rounded to zero significant figures. ABSTRACT SUPPLIED BY ORIGINATOR: We have explored surface water mixing in the Lombok Strait through a bimonthly resolved surface water D14C time series reconstructed from a coral in the Lombok Strait that spans 1937 through 1990. The prebomb surface water D14C average is -60.5%, and individual samples range from -72% to 134%. The annual average postbomb maximum occurs in 1973 at 122%. The timing of the postbomb maximum is consistent with a primary subtropical source for the surface waters in the Indonesian seas. During the postbomb period, the coral records regular seasonal cycles of 5% to 20%. Seasonal high D14C occur during March-May (warm, low salinity), and low D14C occur in September (cool, higher salinity). The D14C seasonality is coherent and in phase with the seasonal D14C cycle observed in Makassar Strait. We estimate the influence of high D14C Makassar Strait (North Pacific) water flowing through the Lombok Strait using a two end-member mixing model and the seasonal extremes observed at the two sites. The percentage of Makassar Strait water varies between 16% and 70%, and between 1955 and 1990, it averages at 40%. The rich D14C variability has a biennial component reflecting remote equatorial Indian Ocean forcing and a component in the ENSO band, which is interpreted to reflect Pacific forcing on the D14C signature in Lombok Strait. 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-10271 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/10271 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/west_pacific/padang-bai2009.xls HTTPS Download /coral/west_pacific/padang-bai2009.xls Coral download https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/padang-bai2009.txt HTTPS Download /coral/west_pacific/padang-bai2009.txt Coral download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25