noaa-coral-20346 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 - Double Reef, Guam 60 Year Coral Bomb-Produced Radiocarbon Data 2016-07-18 publication noaa-coral-20346 NCEI DSI 1200_01 Andrews, A.H. originator Andrews, A.H. author Asami, R. originator Asami, R. author Iryu, Y. originator Iryu, Y. author Kobayashi, D.R. originator Kobayashi, D.R. author Camacho, F. originator Camacho, F. 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 Guam, Central Pacific Ocean. The time period coverage is from 11 to -50 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 earth science > paleoclimate > corals and sclerosponges earth science > paleoclimate > corals and sclerosponges earth science > paleoclimate > corals and sclerosponges 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 > Pacific Ocean > Central Pacific Ocean > Guam> Double Reef > LATITUDE 13.598183 > LONGITUDE 144.83588 place otherRestrictions Cite as: Andrews, A.H.; Asami, R.; Iryu, Y.; Kobayashi, D.R.; Camacho, F. (2016-07-18): NOAA/WDS Paleoclimatology - Double Reef, Guam 60 Year Coral Bomb-Produced Radiocarbon Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/20346. 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. Bomb-produced radiocarbon in the western tropical Pacific Ocean-Guam coral reveals operation-specific signals from the Pacific Proving Grounds 2016 publication Andrews, A.H., R. Asami, Y. Iryu, D.R. Kobayashi, and F. Camacho author Journal of Geophysical Research: Oceans publisher https://doi.org/10.1002/2016JC012043 HTTPS Web Browser Associated Reference published 2016 Andrews, A.H., R. Asami, Y. Iryu, D.R. Kobayashi, and F. Camacho, 2016: Bomb-produced radiocarbon in the western tropical Pacific Ocean-Guam coral reveals operation-specific signals from the Pacific Proving Grounds. Journal of Geophysical Research: Oceans, 121, , 10.1002/2016JC012043 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 1939 AD to 2000 AD; Date Range: 11 cal yr BP to -50 cal yr BP; 144.83588 144.83588 13.598183 13.598183 Study Coordinates 13.598183 144.83588 1939 2000 STUDY NOTES: Carbon isotope (D14C) data for the past 60 years from a Porites lobata coral core (GD2) collected from Double Reef, Guam. Data are subsampled from original core from Asami et al. (2004, 2005) ABSTRACT SUPPLIED BY ORIGINATOR: High-resolution radiocarbon (14C) analyses on a coral core extracted from Guam, a western tropical Pacific island, revealed a series of early bomb-produced 14C spikes. The typical marine bomb 14C signal-phase lagged and attenuated relative to atmospheric records-is present in the coral and is consistent with other regional coral records. However, 14C levels well above what can be attributed to air-sea diffusion alone punctuate this pattern. This anomaly was observed in other Indo-Pacific coral records, but the Guam record is unmatched in magnitude and temporal resolution. The Guam coral D14C record provided three spikes in 1954-55, 1956-57, and 1958-59 that are superimposed on a normal 14C record. Relative to mean pre-bomb levels, the first peak rises an incredible ~700permil and remained elevated for ~1.2 years. A follow up assay with finer resolution increased the peak by ~300permil. Subsequent spikes were less intense with a rise of ~35permil and ~70permil. Each can be linked to thermonuclear testing in the Pacific Proving Grounds at Bikini and Enewetak atolls in Operations Castle (1954), Redwing (1956), and Hardtack I (1958). These 14C signals can be explained by vaporization of coral reef material in the nuclear fireball, coupled with neutron activation of atmospheric nitrogen (14C production), and subsequent absorption of 14CO2 to form particulate carbonates of close-in fallout. The lag time in reaching Guam and other coral records abroad was tied to ocean surface currents and modeling provided validation of 14C arrival observations. 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-20346 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/20346 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/guam2016d14cdup.txt HTTPS Download /coral/west_pacific/guam2016d14cdup.txt Coral download https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/guam2016d14c.txt HTTPS Download /coral/west_pacific/guam2016d14c.txt Coral download https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/guam2016d14chighres.txt HTTPS Download /coral/west_pacific/guam2016d14chighres.txt Coral download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25