noaa-lake-6206 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 - Lake Tanganyika 60,000 Year TEX86 LST and dD Data 2008-12-01 publication noaa-lake-6206 NCEI DSI 1200_01 Tierney, J.E. originator Tierney, J.E. author Russell, J.M. originator Russell, J.M. author Huang, Y. originator Huang, Y. author Sinninghe Damste, J.S. originator Sinninghe Damste, J.S. author Hopmans, E.C. originator Hopmans, E.C. author Cohen, A.S. originator Cohen, A.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 Lake. The data include parameters of climate reconstructions|paleolimnology with a geographic location of Lake Tanganyika, Eastern Africa. The time period coverage is from 59450 to 1350 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 environment derived from lake sediment records. 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-lake.png Paleoclimatology - Lake PNG 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|paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology > reconstruction 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 Continent > Africa > Eastern Africa > Lake Tanganyika> Lake Tanganyika Core NP04-KH3 > LATITUDE -6.71378 > LONGITUDE 29.832616 place otherRestrictions Cite as: Tierney, J.E.; Russell, J.M.; Huang, Y.; Sinninghe Damste, J.S.; Hopmans, E.C.; Cohen, A.S. (2008-12-01): NOAA/WDS Paleoclimatology - Lake Tanganyika 60,000 Year TEX86 LST and dD Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/6206. 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: 59450 cal yr BP to 1350 cal yr BP; 29.832616 29.832616 -6.71378 -6.71378 Study Coordinates -6.71378 29.832616 -57500 600 STUDY NOTES: This dataset includes TEX86 and compound-specific D/H data from Lake Tanganyika cores KH3 and KH4. The TEX86 temperature data are provided with both the original Powers et al. 2005 calibration and the new Tierney et al. (2010) calibration. Chronology was constrained by 26 radiocarbon dates on KH3 and 7 additional dates on KH4. The TEX86 data files include the TEX86 index value, calibration to temperature utilizing the lakes calibrations of Powers et al., 2005, and Tierney et al. 2010, and the Branched and Isoprenoid Tetraether (BIT) index value. The BIT index, ranging from 0-1, is an indicator of the relative amount of soil-derived vs. aquatic GDGTs, with a value of 0 indicative of completely aquatic sources, and 1 indicating completely soil-derived sources (Hopmans et al. 2004). The data for KH4 also includes the modified TEX temperatures (T +0.5º) to account for site offset. D/H values were measured on the C28 n-acid and are expressed in per mil vs. VSMOW. The carbon isotopes were also measured on the C-28 fatty acid expressed in per mil vs. VPDB. Two corrections have been applied to the dD data. "dDIVonly" refers to the D/H data corrected for global ice volume, and "dDIVandbio" refers to the D/H data corrected for biosynthetic fractionation and global ice volume. These corrections are described in the Tierney et al. QSR 2010 paper. Data from cores NP04-KH04-3A-1K (KH3) and NP04-KH04-4A-1K (KH4), Kalya Horst, Lake Tanganyika. Core (KH3): 6º42.827'S, 29º49.957'E, 773m elev, 644m depth. Core (KH4): 6º36.101'S, 30º00.696'E, 773m elev, 349m depth. ABSTRACT SUPPLIED BY ORIGINATOR: The processes that control climate in the tropics are poorly understood. We applied compound-specific hydrogen isotopes (dD) and the TEX86 (tetraether index of 86 carbon atoms) temperature proxy to sediment cores from Lake Tanganyika to independently reconstruct precipitation and temperature variations during the past 60,000 years. Tanganyika temperatures follow Northern Hemisphere insolation and indicate that warming in tropical southeast Africa during the last glacial termination began to increase ~3000 years before atmospheric carbon dioxide concentrations. dD data show that this region experienced abrupt changes in hydrology coeval with orbital and millennial-scale events recorded in Northern Hemisphere monsoonal climate records. This implies that precipitation in tropical southeast Africa is more strongly controlled by changes in Indian Ocean sea surface temperatures and the winter Indian monsoon than by migration of the Intertropical Convergence Zone. 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-lake-6206 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/6206 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/lake HTTPS Information NCEI Lake Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/tanganyika2008.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/tanganyika2008.xls HTTP Download NCEI Direct Download Direct download links for dataset files. download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25