noaa-ocean-17290 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 2019-06-06 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Indonesian Vegetation and d13C Fatty Acids Data over the Past 25,000 Years 2014-10-14 publication noaa-ocean-17290 NCEI DSI 1200_01 Dubois, N. originator Dubois, N. author Oppo, D.W. originator Oppo, D.W. author Galy, V.V. originator Galy, V.V. author Mohtadi, M. originator Mohtadi, M. author van der Kaars, S. originator van der Kaars, S. author Tierney, J.E. originator Tierney, J.E. author Rosenthal, Y. originator Rosenthal, Y. author Eglinton, T.I. originator Eglinton, T.I. 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 paleoceanography with a geographic location of Indonesia. The time period coverage is from 25620 to -30 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 > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleocean > carbon isotopes 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 Monsoon theme Ocean > Indian Ocean > Indonesia> GeoB10065-7 > LATITUDE -9.223667 > LONGITUDE 118.8935 Ocean > Indian Ocean > Indonesia> BJ8-03-91GGC > LATITUDE 2.8739 > LONGITUDE 118.38555 Ocean > Indian Ocean > Indonesia> GeoB10069-3 > LATITUDE -9.594833 > LONGITUDE 120.917 place otherRestrictions Cite as: Dubois, N.; Oppo, D.W.; Galy, V.V.; Mohtadi, M.; van der Kaars, S.; Tierney, J.E.; Rosenthal, Y.; Eglinton, T.I. (2014-10-14): NOAA/WDS Paleoclimatology - Indonesian Vegetation and d13C Fatty Acids Data over the Past 25,000 Years. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/17290. 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. Indonesian vegetation response to changes in rainfall seasonality over the past 25,000 years 2014 publication Dubois, N., D.W. Oppo, V. Galy, M. Mohtadi, S. van der Kaars, J.E. Tierney, Y. Rosenthal, T.I. Eglinton, A. Lueckge, and B.K. Linsley author Nature Geoscience publisher https://doi.org/10.1038/ngeo2182 HTTPS Web Browser Associated Reference published 2014 Dubois, N., D.W. Oppo, V. Galy, M. Mohtadi, S. van der Kaars, J.E. Tierney, Y. Rosenthal, T.I. Eglinton, A. Lueckge, and B.K. Linsley, 2014: Indonesian vegetation response to changes in rainfall seasonality over the past 25,000 years. Nature Geoscience, 7, 513-517, 10.1038/ngeo2182 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 25620 cal yr BP to -30 cal yr BP; 118.38555 120.917 -9.594833 2.8739 -23670 1980 STUDY NOTES: The data set contains fatty acids d13C data and pollen data from 3 cores from the Indo-Pacific Warm Pool covering the last 30 kyr. Methods: 5_-10 g of sediments were freeze-dried and homogenized before lipid extraction using a microwave-assisted reaction system (MARS). Fatty acids were isolated from the total lipid extract by aminopropyl-silica-gel column chromatography, methylated with methanol of known isotopic composition, and then further purified by aminopropyl-silica-gel chromatography and silver nitrate-silica-gel chromatography. Fatty acid methyl esters were analysed in triplicate for their carbon isotopic composition by means of gas chromatography-isotope ratio monitoring-mass spectrometry (GC-IR-MS) at the Woods Hole Oceanographic Institution. All _13C values were normalized to the Vienna Pee Dee Belemnite (VPDB) scale using multiple pulses of CO2 reference gas. The average standard deviation of replicate measurements was 0.19‰. Measurements were corrected for the added methyl group on the basis of isotopic mass balance. For palynological processing 5.3_-7.5ml of sediment were suspended in approximately 40 ml of tetra-sodium-pyrophosphate (_±10%), sieved over 200 and 7 micrometer screens. Following hydrochloric acid (10%) treatment, heavy liquid separation (sodium-polytungstate, SG 2.0, 20 min at 2,000 rpm, twice), acetolyis and sodium carbonate (20%) treatment, the resulting organic residues were mounted in glycerol and slides sealed with para_n wax. Palynological slides were counted along evenly spaced transects until a minimum count of 100 dryland rainforest pollen grains was reached. All percentage values presented here are based on the total dryland pollen sum made up of all terrestrial pollen grains counted (that is, excluding mangrove pollen and pteridophyta spores). This pollen sum varied between 322 and 964, with an average of 527 pollen grains. Pollen taxa were placed into ecological groups according to where they most commonly occur. ABSTRACT SUPPLIED BY ORIGINATOR: The hydrologic response to climate forcing in the Indo-Pacific warm pool region has varied spatially over the past 25,000 years. For example, drier conditions are inferred,on Java and Borneo for the period following the end of,the Last Glacial Maximum, whereas wetter conditions are reconstructed for northwest Australia. The response of vegetation to these past rainfall variations is poorly constrained. Using a suite of 30 surface marine sediment samples from throughout the Indo-Pacific warm pool, we demonstrate that today the stable isotopic composition of vascular plant fatty acids (d13CFA) reflects the regional vegetation composition. This in turn is controlled by the seasonality of rainfall consistent with dry season water stress. Applying this proxy in a sediment core from offshore northeast Borneo, we show broadly similar vegetation cover during the Last Glacial Maximum and the Holocene, suggesting that, despite generally drier glacial conditions, there was no pronounced dry season. In contrast, d13CFA and pollen data from a core off the coast of Sumba indicate an expansion of C4 herbs during the most recent glaciation, implying enhanced aridity and water stress during the dry season. Holocene vegetation trends are also consistent with a response to dry season water stress. We therefore conclude that vegetation in tropical monsoon regions is susceptible to increases in water stress arising from an enhanced seasonality of rainfall, as has occurred in past decades. 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-ocean-17290 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/17290 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/dubois2014-ng/dubois2014-ng-65-7.txt HTTPS Download /contributions_by_author/dubois2014-ng/dubois2014-ng-65-7.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/dubois2014-ng/dubois2014-ng-91ggc.txt HTTPS Download /contributions_by_author/dubois2014-ng/dubois2014-ng-91ggc.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/dubois2014-ng/dubois2014-ng-69-3.txt HTTPS Download /contributions_by_author/dubois2014-ng/dubois2014-ng-69-3.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