noaa-ocean-6403 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 - Congo River Basin 25KYr MBT/CBT Data and Air Temperature Reconstruction 2008-05-01 publication noaa-ocean-6403 NCEI DSI 1200_01 Weijers, J.W.H. originator Weijers, J.W.H. author Schefuss, E. originator Schefuss, E. author Schouten, S. originator Schouten, S. author Sinninghe Damsté, J.S. originator Sinninghe Damsté, J.S. 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 Paleoceanography. The data include parameters of climate reconstructions|paleoceanography with a geographic location of South Atlantic Ocean. The time period coverage is from 30657 to 0 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 circulation derived from marine sediments. 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-ocean.png Paleoclimatology - Paleoceanography PNG Earth Science > Paleoclimate > Ocean/Lake Records Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records 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 > climate reconstructions|paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleocean > biomarkers earth science > paleoclimate > paleocean > reconstruction earth science > paleoclimate > paleocean > age control 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 Air Temperature Reconstruction PAGES 2k Network PAGES Africa 2k theme Ocean > Atlantic Ocean > South Atlantic Ocean> GeoB 6518-1 > LATITUDE -5.58 > LONGITUDE 11.22 place otherRestrictions Cite as: Weijers, J.W.H.; Schefuss, E.; Schouten, S.; Sinninghe Damsté, J.S. (2008-05-01): NOAA/WDS Paleoclimatology - Congo River Basin 25KYr MBT/CBT Data and Air Temperature Reconstruction. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/6403. 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: 25790 14C yr BP to 30 14C yr BP; Date Range: 30657 cal yr BP to 0 cal yr BP; 11.22 11.22 -5.58 -5.58 Study Coordinates -5.58 11.22 -28707 1950 STUDY NOTES: 25 ky MBT/CBT record for the Congo River Basin (central tropical Africa) obtained from marine core GeoB 6518-1 situated in the Congo deep sea fan. Annual mean air temperature and soil pH estimates have been obtained from branched tetraether membrane lipids derived from soil bacteria and analysed with high performance liquid chromatography / mass spectrometry (HPLC/MS). Core Location: GeoB 6518-1: 05°35.3'S, 11°13.3'E, 962m water depth (Congo Fan). Age calibration of core: Dating of core GeoB 6518-1 was carried out by means of fifteen 14C-AMS dates on mixed planktonic foraminifera fractions containing Globigerinoides ruber (white), Globigerinoides sacculifer and Orbulina universa. Radiocarbon ages were converted to calendar ages using the program CALIB 4.4 (using the marine calibration and applying a reservoir effect of 400 years) and were linearly interpolated to provide the core chronology. Uncertainties: The pH calibration range is from 3.3 to 8.2 and the temperature calibration range is from -6.7 to 27.0°C, which covers the entire range of pH and temperatures reconstructed from our core. The analytical reproducibility based on pooled standard deviations of duplicate measurements of samples is =< 0.01 units for the MBT index and ± 0.01 units for the CBT ratio, or ± 0.02 pH units and ± 0.2°C in the temperature estimates. ABSTRACT SUPPLIED BY ORIGINATOR: We analyzed the distribution of branched tetraether membrane lipids derived from soil bacteria in a marine sediment record that was recovered close to the Congo River outflow, and the results enabled us to reconstruct large-scale continental temperature changes in tropical Africa that span the past 25,000 years. Tropical African temperatures gradually increased from ~21° to 25°C over the last deglaciation, which is a larger warming than estimated for the tropical Atlantic Ocean. A direct comparison with sea-surface temperature estimates from the same core revealed that the land-sea temperature difference was, through the thermal pressure gradient, an important control on central African precipitation patterns. 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Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-ocean-6403 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/6403 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/paleoceanography HTTPS Information NCEI Paleoceanography Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weijers2007/weijers2007.xls HTTPS Download /contributions_by_author/weijers2007/weijers2007.xls Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/gb6518-1-tab.txt HTTPS Download /paleocean/sediment_files/complete/gb6518-1-tab.txt Alternate Format Data download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/weijers2007/weijers2007.txt HTTPS Download /contributions_by_author/weijers2007/weijers2007.txt Original Data and Full Metadata download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25