noaa-ocean-16491 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 - North Atlantic Deglacial Isotope Data and Reconstructions of Salinity and SST 2014-05-21 publication noaa-ocean-16491 NCEI DSI 1200_01 Thornalley, D.J.R. originator Thornalley, D.J.R. author Elderfield, H. originator Elderfield, H. author McCave, I.N. originator McCave, I.N. 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 North Atlantic Ocean. The time period coverage is from 21726 to -50 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 > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography 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 > paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography 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 > climate reconstructions|paleoceanography 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 > paleoceanography 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 > 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 > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleocean > geochemistry earth science > paleoclimate > paleocean > oxygen isotopes earth science > paleoclimate > paleocean > carbon isotopes earth science > paleoclimate > paleocean > 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 Heinrich Events Other Hydroclimate Reconstruction Sea Surface Temperature Reconstruction Younger Dryas theme Ocean > Atlantic Ocean > North Atlantic Ocean> RAPiD-12-1K > LATITUDE 62.08 > LONGITUDE -17.82 Ocean > Atlantic Ocean > North Atlantic Ocean> RAPiD-15-4P > LATITUDE 62.2994 > LONGITUDE -17.1344 Ocean > Atlantic Ocean > North Atlantic Ocean> RAPiD-17-5P > LATITUDE 61.481667 > LONGITUDE -19.536 Ocean > Atlantic Ocean > North Atlantic Ocean> RAPiD-10-1P > LATITUDE 62.9755 > LONGITUDE -17.5895 place otherRestrictions Cite as: Thornalley, D.J.R.; Elderfield, H.; McCave, I.N. (2014-05-21): NOAA/WDS Paleoclimatology - North Atlantic Deglacial Isotope Data and Reconstructions of Salinity and SST. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/16491. 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. Reconstructing North Atlantic deglacial surface hydrography and its link to the Atlantic overturning circulation 2011 publication Thornalley, D.J.R., H. Elderfield, and I.N. McCave author Global and Planetary Change publisher https://doi.org/10.1016/j.gloplacha.2010.06.003 HTTPS Web Browser Associated Reference published 2011 Thornalley, D.J.R., H. Elderfield, and I.N. McCave, 2011: Reconstructing North Atlantic deglacial surface hydrography and its link to the Atlantic overturning circulation. Global and Planetary Change, 79, 163-175, 10.1016/j.gloplacha.2010.06.003 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 21726 cal yr BP to -50 cal yr BP; -19.536 -17.1344 61.481667 62.9755 -19776 2000 STUDY NOTES: Data collected by David J.R. Thornalley (Univ. of Cambridge); Principal Investigator: I. Nick McCave (Univ. of Cambridge); cruise CD-159, funded by UK RAPID program. Stable isotope values relative to VPDB standard, run in Godwin Laboratory, Univ. of Cambridge. Temperature calculated using Mg/Ca = B exp (0.1 × T). B = 0.794, 0.76 and 0.52 for G. bulloides, G. inflata and N. pachy. (s) respectively. RAPiD-10-1P: N. pachy. (s) and Cib. spp. isotope data originally presented in Thornalley, Elderfield & McCave, 2010, DOI:10.1029/2009PA001833. RAPiD-12-1K: Please cite Thornalley, Elderfield & McCave, Nature, 2009. For % sand and G. inflata d13C data, please cite Thornalley, Elderfield & McCave, 2010, Paleoceanography, DOI:10.1029/2009PA001833. Vital effect of -0.24 applied to Melonis d18O data. Salinity calculated using Kim and O'Neil (1997) to obtain d18Osw, including a 0.6‰ offset for G. bulloides, and VPDB to SMOW conversion of 0.27‰; Converted to salinity using Schmidt and Legrande (2006) N. Atlantic d18Osw-S relationship; Also corrected for whole ocean d18O and salinity changes (1 per mil glacial-interglacial) scaled to Fairbanks (1989) sea-level curve. Core-top age assignment: The core-top was not lost; assume 0cm=2004AD, but account for top 2 cm well mixed by bioturbation. RAPiD-15-4P: All data except N. pachy.(s) originally presented in Thornalley, McCave & Elderfield, 2010, Paleoceanography, DOI:10.1029/2009PA001772. N. pachy. (s) isotope data originally presented in Thornalley, Elderfield & McCave, 2010, Paleoceanography, DOI:10.1029/2009PA001833. d18Osw calculated using Kim and O'Neil (1997), including a -0.6‰ offset for G. bulloides. Note - no offset used for N. pachy.(s) contrary to manuscript, and VPDB to SMOW conversion of 0.27‰ "Ice-volume corrected" for whole ocean changes using Fairbanks (1989) sea-level curve, assuming a LGM to late Holocene shift of 1‰. Salinity calculated based on North Atlantic relation of LeGrande and Schmidt (2006) and also for N. pachyderma for mixing with a freshwater endmember RAPiD-17-5P: C. wuell. And IRD data originally presented in Thornalley, Elderfield & McCave, 2010, Paleoceanography, DOI:10.1029/2009PA001833. d18Osw calculated using Kim and O'Neil (1997), including a 0.6‰ offset for G. bulloides, and VPDB to SMOW conversion of 0.27‰ "Ice-volume corrected" for whole ocean changes using Fairbanks (1989) sea-level curve, assuming a LGM to late Holocene shift of 1‰. ABSTRACT SUPPLIED BY ORIGINATOR: Greenland ice core records indicate that the last deglaciation (~7-21 ka) was punctuated by numerous abrupt climate reversals involving temperature changes of up to 5°C-10°C within decades. However, the cause behind many of these events is uncertain. A likely candidate may have been the input of deglacial meltwater, from the Laurentide ice sheet (LIS), to the high-latitude North Atlantic, which disrupted ocean circulation and triggered cooling. Yet the direct evidence of meltwater input for many of these events has so far remained undetected. In this study, we use the geochemistry (paired Mg/Ca-d18O) of planktonic foraminifera from a sediment core south of Iceland to reconstruct the input of freshwater to the northern North Atlantic during abrupt deglacial climate change. Our record can be placed on the same timescale as ice cores and therefore provides a direct comparison between the timing of freshwater input and climate variability. Meltwater events coincide with the onset of numerous cold intervals, including the Older Dryas (14.0 ka), two events during the Allerød (at ~13.1 and 13.6 ka), the Younger Dryas (12.9 ka), and the 8.2 ka event, supporting a causal link between these abrupt climate changes and meltwater input. During the Bølling-Allerød warm interval, we find that periods of warming are associated with an increased meltwater flux to the northern North Atlantic, which in turn induces abrupt cooling, a cessation in meltwater input, and eventual climate recovery. This implies that feedback between climate and meltwater input produced a highly variable climate. A comparison to published data sets suggests that this feedback likely included fluctuations in the southern margin of the LIS causing rerouting of LIS meltwater between southern and eastern drainage outlets, as proposed by Clark et al. (2001). 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Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-ocean-16491 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/16491 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/thornalley2011/thornalley2011-12-1k-plank.txt HTTPS Download /contributions_by_author/thornalley2011/thornalley2011-12-1k-plank.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thornalley2011/thornalley2011-15-4p-benth.txt HTTPS Download /contributions_by_author/thornalley2011/thornalley2011-15-4p-benth.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thornalley2011/thornalley2011-17-5p-plank.txt HTTPS Download /contributions_by_author/thornalley2011/thornalley2011-17-5p-plank.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thornalley2011/thornalley2011-10-1p-plank.txt HTTPS Download /contributions_by_author/thornalley2011/thornalley2011-10-1p-plank.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thornalley2011/thornalley2011-RAPiD-foram.xls HTTPS Download /contributions_by_author/thornalley2011/thornalley2011-RAPiD-foram.xls Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thornalley2011/thornalley2011-15-4p-plank.txt HTTPS Download /contributions_by_author/thornalley2011/thornalley2011-15-4p-plank.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thornalley2011/thornalley2011-12-1k-benth.txt HTTPS Download /contributions_by_author/thornalley2011/thornalley2011-12-1k-benth.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thornalley2011/thornalley2011-10-1p-benth.txt HTTPS Download /contributions_by_author/thornalley2011/thornalley2011-10-1p-benth.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/thornalley2011/thornalley2011-17-5p-benth.txt HTTPS Download /contributions_by_author/thornalley2011/thornalley2011-17-5p-benth.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