noaa-coral-17435 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 - Hawaiian Gold Coral Bulk and Compound Specific Nitrogen Isotope Data for the Last Millennium 2014-11-12 publication noaa-coral-17435 NCEI DSI 1200_01 Sherwood, O.A. originator Sherwood, O.A. author Guilderson, T.P. originator Guilderson, T.P. author Batista, F.C. originator Batista, F.C. author Schiff, J.T. originator Schiff, J.T. author McCarthy, M.D. originator McCarthy, M.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 Hawaiian Islands, Central Pacific Ocean. The time period coverage is from 1057 to -42 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 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 > 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 Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands> Cross Seamount > LATITUDE 18.7 > LONGITUDE -158.27 Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands> Makapuu > LATITUDE 21.29 > LONGITUDE -157.54 Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands> French Frigate Shoals > LATITUDE 23.72 > LONGITUDE -166.1 place otherRestrictions Cite as: Sherwood, O.A.; Guilderson, T.P.; Batista, F.C.; Schiff, J.T.; McCarthy, M.D. (2014-11-12): NOAA/WDS Paleoclimatology - Hawaiian Gold Coral Bulk and Compound Specific Nitrogen Isotope Data for the Last Millennium. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/17435. 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. Increasing subtropical North Pacific Ocean nitrogen fixation since the Little Ice Age 2014 publication Sherwood, O.A., T.P. Guilderson, F.C. Batista, J.T. Schiff, and M.D. McCarthy author Nature publisher https://doi.org/10.1038/nature12784 HTTPS Web Browser Associated Reference published 2014 Sherwood, O.A., T.P. Guilderson, F.C. Batista, J.T. Schiff, and M.D. McCarthy, 2014: Increasing subtropical North Pacific Ocean nitrogen fixation since the Little Ice Age. Nature, 505, 78-81, 10.1038/nature12784 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 893 AD to 1992 AD; Date Range: 1057 cal yr BP to -42 cal yr BP; -166.1 -157.54 18.7 23.72 893 1992 STUDY NOTES: Colonies of Hawaiian gold coral (K. haumeaae) were collected from approx. 450 m water depth from 3 sites in the Hawaiian archipelago (Makapuu, Cross Seamount, and French Frigate Shoals) with the HURL/NOAA Pisces V submersible between 1997 and 2004. Air-dried colonies were sectioned near the skeletal base, polished and photographed under a binocular microscope. A computerized Merchantek micromill was used to mill samples, parallel to growth banding, at increments of 0.1 mm, along radial transects from the outer edge to the center of each section. Each sample represents from 1 to 20 (average 5) years of growth, depending on growth rate. Radiocarbon dating of sample aliquots was used for age modeling. Bulk nitrogen isotope ratios were measured using a Carlo Erba 1108 elemental analyzer interfaced to a ThermoFinningan Delta Plus XP isotope ratio mass spectrometer (IRMS). Values are reported in per mille units relative to atmospheric N2. Amino acid specific nitrogen isotope atios were measured on 15-20 mg sample composites (combining 3-10 separate samples). Composites were hydrolysed in 6 N HCl (100 ml, 20 h), spiked with a norleucine internal standard followed by formation of trifluoroacetyl/isopropyl ester (TFA) derivatives. Derivatives were analyzed on a Thermo Trace Ultra GC, fitted with a SGE BPX5 capillary column (60m x 0.32mm ID, 1 micrometer), in line with oxidation and reduction furnaces, and linked to a ThermoFinnigan Delta Plus XP IRMS. Samples were analysed in quadruplicate. Analytical accuracy was monitored by analysis of the norleucine internal standard and co-derivatized AA external standards for which authentic d15N values of each AA were determined offline. Reproducibility for individual AA values was typically better than 1 per mille. ABSTRACT SUPPLIED BY ORIGINATOR: The North Pacific subtropical gyre (NPSG) plays a major part in the export of carbon and other nutrients to the deep ocean. Primary production in the NPSG has increased in recent decades despite a reduction in nutrient supply to surface waters. It is thought that this apparent paradox can be explained by a shift in plankton community structure from mostly eukaryotes to mostly nitrogen-fixing prokaryotes. It remains uncertain, however, whether the plankton community domain shift can be linked to cyclical climate variability or a long-term global warming trend. Here we analyse records of bulk and amino-acid-specific 15N/14N isotopic ratios (d15N) preserved in the skeletons of long-lived deep-sea proteinaceous corals collected from the Hawaiian archipelago; these isotopic records serve as a proxy for the source of nitrogen-supported export production through time. We find that the recent increase in nitrogen fixation is the continuation of a much larger, centennial-scale trend. After a millennium of relatively minor fluctuation, d15N decreases between 1850 and the present. The total shift in d15N of 2 per mil over this period is comparable to the total change in global mean sedimentary d15N across the Pleistocene–Holocene transition, but it is happening an order of magnitude faster. We use a steady-state model and find that the isotopic mass balance between nitrate and nitrogen fixation implies a 17 to 27 percent increase in nitrogen fixation over this time period. A comparison with independent records suggests that the increase in nitrogen fixation might be linked to Northern Hemisphere climate change since the end of the Little Ice Age. 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-17435 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/17435 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/sherwood2014/sherwood2014-ffs.txt HTTPS Download /coral/east_pacific/sherwood2014/sherwood2014-ffs.txt Coral download https://www1.ncdc.noaa.gov/pub/data/paleo/coral/east_pacific/sherwood2014/sherwood2014-maka-cs.txt HTTPS Download /coral/east_pacific/sherwood2014/sherwood2014-maka-cs.txt Coral download https://www1.ncdc.noaa.gov/pub/data/paleo/coral/east_pacific/sherwood2014/sherwood2014-cross.txt HTTPS Download /coral/east_pacific/sherwood2014/sherwood2014-cross.txt Coral download https://www1.ncdc.noaa.gov/pub/data/paleo/coral/east_pacific/sherwood2014/sherwood2014-maka.txt HTTPS Download /coral/east_pacific/sherwood2014/sherwood2014-maka.txt Coral download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25