noaa-coral-1889 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2025-07-16 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Penang Island - Radiocarbon Data 2004-07-01 publication doi:10.25921/0kyn-ra05 noaa-coral-1889 NCEI DSI 1200_02 NCEI DSI 1200_01 Grumet, N.S. originator Grumet, N.S. author Abram, N.J. originator Abram, N.J. author Beck, J.W. originator Beck, J.W. author Dunbar, R.B. originator Dunbar, R.B. author Gagan, M.K. originator Gagan, M.K. author Guilderson, T.P. originator Guilderson, T.P. author Hantoro, W.S. originator Hantoro, W.S. author Suwargadi, B.W. originator Suwargadi, B.W. 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 6 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 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncei.noaa.gov/pub/data/paleo/webimages/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 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian 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 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian What: age; Material: null What: Delta 14C; Material: Porites sp. theme Paleoenvironmental Standard Terms (PaST) Thesaurus NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/paleoclimatology/paleoenvironmental-standard-terms-thesaurus PaST Thesaurus information publisher Ocean > Indian Ocean > Indonesia > Penang Island > LATITUDE -.13 > LONGITUDE 98.52 place DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: Grumet, N.S.; Abram, N.J.; Beck, J.W.; Dunbar, R.B.; Gagan, M.K.; Guilderson, T.P.; Hantoro, W.S.; Suwargadi, B.W. (2004-07-01): NOAA/WDS Paleoclimatology - Penang Island - Radiocarbon Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/0kyn-ra05. 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. Coral radiocarbon records of Indian Ocean water mass mixing and wind-induced upwelling along the coast of Sumatra, Indonesia 2004 publication Grumet, N.S., N.J. Abram, J.W. Beck, R.B. Dunbar, M.K. Gagan, T.P. Guilderson, W.S. Hantoro, and B.W. Suwargadi author Journal of Geophysical Research: Oceans publisher https://doi.org/10.1029/2003JC002087 HTTPS Web Browser Associated Reference published 2004 Grumet, N.S., N.J. Abram, J.W. Beck, R.B. Dunbar, M.K. Gagan, T.P. Guilderson, W.S. Hantoro, and B.W. Suwargadi, 2004: Coral radiocarbon records of Indian Ocean water mass mixing and wind-induced upwelling along the coast of Sumatra, Indonesia. Journal of Geophysical Research: Oceans, 109, , 10.1029/2003JC002087 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 1944 CE to 1990 CE; Date Range: 6 cal yr BP to -40 cal yr BP; 98.52 98.52 -.13 -.13 Study Coordinates -.13 98.52 1944 1990 STUDY NOTES: We present accelerator mass spectrometric (AMS) measurements of radiocarbon isotope (d14C) in Porites corals from the Mentawai Islands, Sumatra (0ºS, 98ºE), and compare them to d14C data from Watamu, Kenya (3ºS, 39ºE) to document the temporal and spatial evolution of the 14C zonal gradient in the tropical Indian Ocean. The rise in d14C in the Sumatra coral, in response to the maximum in nuclear weapons testing, is delayed by 2-3 years relative to the rise in coral d14C from the coast of Kenya. Our intrabasin comparison between coral d14C records from the coasts of Sumatra and Kenya reveals a distinct difference in water mass mixing processes across the equatorial Indian Ocean basin. The Watamu data are also available at the WDC Paleo: https://www.ncei.noaa.gov/pub/data/paleo/coral/indian_ocean/watamu_c14.txt. Data are from a 2.7m Core (PG2) from a massive Porites sp. coral. Collection site ~400m. offshore of Penang Island, Mentawais Islands, Sumatra, Indonesia. (0 deg. 08'S, 98 deg., 31' E, 6m. water depth) ABSTRACT SUPPLIED BY ORIGINATOR: Radiocarbon (14C) in the skeletal aragonite of annually banded corals track radiocarbon concentrations in dissolved inorganic carbon (DIC) in surface seawater. As a result of nuclear weapons testing in the 1950s, oceanic uptake of excess 14C in the atmosphere has increased the contrast between surface and deep ocean 14C concentrations. We present accelerator mass spectrometric (AMS) measurements of 14C/12C ratios (Δ14C) in Porites corals from the Mentawai Islands, Sumatra (0°S, 98°E) and Watamu, Kenya (3°S, 39°E) to document the temporal and spatial evolution of the 14C zonal gradient in the tropical Indian Ocean. The rise in Δ14C in the Sumatra coral, in response to the maximum in nuclear weapons testing, is delayed by 2–3 years relative to the rise in coral Δ14C from the coast of Kenya. Kenya coral Δ14C values rise quickly because surface waters are in prolonged contact with the atmosphere. In contrast, wind-induced upwelling and rapid mixing along the coast of Sumatra entrains 14C-depleted water from the subsurface, which dilutes the effect of the uptake of bomb-produced 14C by the surface ocean. Bimonthly AMS Δ14C measurements on the Mentawai coral reveal mainly interannual variability with minor seasonal variability. Singular spectrum analysis of the Sumatra coral Δ14C record reveals a significant 3-year periodicity. These results lend support to the concept that interannual variability in Indian Ocean upwelling and sea surface temperatures is related to ENSO-like teleconnections over the Indo-Pacific basin. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Native Format(s) https://doi.org/10.25921/0kyn-ra05 HTTPS Landing Page Metadata Landing Page NCEI landing page with general information and links to access the data. information https://www.ncei.noaa.gov/access/paleo-search/study/1889 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/coral-sclerosponge HTTPS Information NCEI Coral Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/coral/indian_ocean/penang2004-noaa.txt HTTPS Download /coral/indian_ocean/penang2004-noaa.txt Coral download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21