noaa-coral-1891 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 - Peros Banhos Atoll - Oxygen Isotope Data 2004-07-01 publication doi:10.25921/ywa9-p333 noaa-coral-1891 NCEI DSI 1200_02 NCEI DSI 1200_01 Pfeiffer, M. originator Pfeiffer, M. author Dullo, W.-C. originator Dullo, W.-C. author Eisenhauer, A. originator Eisenhauer, A. 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 Indian Ocean. The time period coverage is from -11 to -45 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 > oxygen 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 18O; Material: Porites lobata 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 > Peros Banhos Atoll > LATITUDE -5.43 > LONGITUDE 71.77 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: Pfeiffer, M.; Dullo, W.-C.; Eisenhauer, A. (2004-07-01): NOAA/WDS Paleoclimatology - Peros Banhos Atoll - Oxygen Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/ywa9-p333. 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. Variability of the Intertropical Convergence Zone recorded in coral isotopic records from the central Indian Ocean (Chagos Archipelago) 2004 publication Pfeiffer, M., W.-C. Dullo, and A. Eisenhauer author Quaternary Research publisher https://doi.org/10.1016/j.yqres.2004.02.009 HTTPS Web Browser Associated Reference published 2004 Pfeiffer, M., W.-C. Dullo, and A. Eisenhauer, 2004: Variability of the Intertropical Convergence Zone recorded in coral isotopic records from the central Indian Ocean (Chagos Archipelago). Quaternary Research, 61, 245-255, 10.1016/j.yqres.2004.02.009 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 1961 CE to 1995 CE; Date Range: -11 cal yr BP to -45 cal yr BP; 71.77 71.77 -5.43 -5.43 Study Coordinates -5.43 71.77 1961 1995 STUDY NOTES: Bimonthly resolved stable oxygen isotope record from a modern coralcollected at Peros Banhos Atoll (central Indian Ocean). Coral d18O isinfluenced by rainfall associated with the Intertropical Convergence Zone. Stable isotope analysis: Carbonate powders were reacted with 100 % phosphoricacid at 75°C in an online carbonate preparation line (Carbo-Kiel-singlesample acid bath) connected to a Finnigan Mat 252 mass spectrometer.All values are reported in per mil relative to PDB by assigning a d18Ovalue of -2.20 to NBS-19. Reproducibility was checked by replicate analysisof laboratory standards and is better than 0.05 for d18O. Sampling resolution: The core was sampled at 2 mm increments. Age model: The most negative isotopic value in any given year was assignedto February 15. All other age assignments are obtained through linearinterpolation between these anchor points. Sample site is Peros Banhos Atoll in the Chagos Archipelago, central Indian Ocean. 5 deg., 26.4' South, 71 deg., 45.86' East, 1.8 M. water depth. ABSTRACT SUPPLIED BY ORIGINATOR: We have analyzed the stable oxygen isotopic composition of two Porites corals from the Chagos Archipelago, which is situated in the geographical center of the Indian Ocean. Coral d18O at this site reliably records temporal variations in precipitation associated with the Intertropical Convergence Zone (ITCZ). Precipitation maxima occur in boreal winter, when the ITCZ forms a narrow band across the Indian Ocean. The Chagos then lies within the center of the ITCZ, and rainfall is strongly depleted in d18O. A 120-yr coral isotopic record indicates an alternation of wet and dry intervals lasting 15 to 20 yr. The most recent 2 decades are dominated by interannual variability, which is tightly coupled to the El Nino-Southern Oscillation (ENSO). This is unprecedented in the 120 yr of coral record. As the ITCZ is governed by atmospheric dynamics, this provides evidence of a major change in the coupled ENSO-monsoon system. 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/ywa9-p333 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/1891 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/chagos2004-noaa.txt HTTPS Download /coral/indian_ocean/chagos2004-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