noaa-ocean-12906 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 2019-04-22 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Makassar Strait 2000 Year Foraminiferal Mg/Ca and Stable Isotope Data 2012-04-26 publication noaa-ocean-12906 NCEI DSI 1200_01 Newton, A. originator Newton, A. author Thunell, R.C. originator Thunell, R.C. author Stott, L.D. originator Stott, L.D. 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 Indian Ocean. The time period coverage is from 2000 to 10 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 > paleocean > geochemistry earth science > paleoclimate > paleocean > oxygen 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 Little Ice Age (LIA) Medieval Warm Period theme Ocean > Indian Ocean> MD98-2160 > LATITUDE -5.2 > LONGITUDE 117.48 Ocean > Pacific Ocean > Western Pacific Ocean> MD98-2177 > LATITUDE 1.4033 > LONGITUDE 119.078 place otherRestrictions Cite as: Newton, A.; Thunell, R.C.; Stott, L.D. (2012-04-26): NOAA/WDS Paleoclimatology - Makassar Strait 2000 Year Foraminiferal Mg/Ca and Stable Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/12906. 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: 2000 cal yr BP to 10 cal yr BP; 117.48 119.078 -5.2 1.4033 -50 1940 STUDY NOTES: Mg/Ca and stable oxygen isotope compositions of the planktonic foraminifer Globigerinoides ruber over the past 2000 years, sampled from two sediment cores collected at the northern and southern ends of the Makassar Strait, Indonesia. Sample preparation: Samples were freeze-dried, then soaked in a Calgon-water solution, before being washed through a 63um sieve. Samples were dried and the surface dwelling G. ruber were picked from the 250 to 350 um size fraction. Trace metal analysis: All samples used for trace metal analyses underwent the rigorous cleaning procedure of Boyle (1981) to eliminate clay and organic matter contamination, although the reductive cleaning step was not used. Calcium and magnesium were measured simultaneously using a Jobin Yvon Ultima Inductively Coupled Plasma Atomic Emission Spectrometer (ICP-AES). Based on repeated analysis of standards, the 1S analytical precision is better than 1.0%. Stable isotope analysis: All stable isotope measurements were made using a VG Optima stable isotope ratio mass spectrometer equipped with an automated carbonate system. All d18O values are reported in delta notation relative to the Vienna Pee Dee Belemnite (VPDB) standard. The long-term standard reproducibility for oxygen isotopes based on replicate analyses of a reference standard is ±0.07%. Age model: Radiocarbon analyses were performed at the Center for Atomic Mass Spectrometry at Lawrence Livermore National Laboratory on mixed samples of G. ruber and G. sacculifer from the >150 um size fraction. The calendar ages listed were calibrated using the Calib 5.0 program (Stuiver and Riemer, 2003), with an additional reservoir age correction of 75±80 years (Southon et al., 2002). Core MD98-2160: 05°12.07'S, 117°29.20'E, water depth 1185 m Core MD98-2177: 01°24.20'N, 119°04.68'E, water depth 968 m ABSTRACT SUPPLIED BY ORIGINATOR: The Indonesian Throughflow (ITF) is the only low-latitude conduit for exchange of surface and thermocline waters between the Indian and Pacific Oceans; 80% of the ITF waters pass through the Makassar Strait. The flux of heat and salt through the strait is, in part, a function of the density difference between its southern and northern ends. Here the Mg/Ca and stable oxygen isotope compositions of the planktonic foraminifer Globigerinoides ruber sampled from two sediment cores collected at the northern and southern ends of the Makassar Strait are used to reconstruct surface-water temperature (SST), sea-surface salinity (SSS), and seawater density variability over the past 2000 yr. Maximum SST and SSS occurred at both sites between 850 and 700 yr ago, coinciding with the Medieval Solar Maximum and Medieval Warm Period (ca. 1000-700 yr ago). SST and SSS declined at both locations after 700 yr ago and reached minimum values during the Little Ice Age, between 300 and 100 yr ago. However, the magnitude of SST and SSS change over the past 2000 yr was distinctly different between the two sites, especially during the period between 2000 and 900 yr ago. This led to changes in the south to north density gradient within the Makassar Strait. Specifically, the time interval from ca. 2000 to 800 yr ago was marked predominantly by higher densities at the northern end relative to the southern end of the strait, suggesting reduced heat flux from the Pacific to the Indian Ocean. This is consistent with previous work showing that this time interval was also marked by frequent El Niño conditions. Conversely, the period from ca. 800 to 300 yr ago, including the LIA, was marked by frequent periods when surface density was higher at the southern end of the strait, indicative of enhanced heat flux to the Indian Ocean. 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-12906 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/12906 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/newton2011/newton2011.txt HTTPS Download /contributions_by_author/newton2011/newton2011.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/newton2011/newton2011.xls HTTPS Download /contributions_by_author/newton2011/newton2011.xls 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