NOAA/WDS Paleoclimatology - North Icelandic Shelf 1350 Year Molusc Radiocarbon Data
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title: NOAA/WDS Paleoclimatology - North Icelandic Shelf 1350 Year Molusc Radiocarbon Data
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date: 2012-06-21
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Anchor: DOI doi:10.25921/9pdq-xk02
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code: noaa-ocean-13034
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code: NCEI DSI 1200_02
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abstract: 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 1275 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.
purpose: 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.
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keyword: Earth Science > Paleoclimate > Ocean/Lake Records
keyword: Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records
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date: 2020-01-09
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keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleocean > oxygen isotopes
keyword: earth science > paleoclimate > paleocean > carbon isotopes
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keyword: Little Ice Age (LIA)
keyword: Medieval Climate Anomaly (MCA)
keyword: Meridional Overturning Circulation (MOC)
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keyword: What: delta 18O; Material: bivalve
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keyword: What: age; Material: null
keyword: What: delta 13C; Material: bivalve
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keyword: Ocean > Atlantic Ocean > North Atlantic Ocean > Trawl B05AD03 > LATITUDE 66.5265 > LONGITUDE -18.1957
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keyword: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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otherConstraints: Cite as: Wanamaker, A.D.; Butler, P.G.; Scourse, J.D.; Heinemeier, J.; Eiríksson, J.; Knudsen, K.L.; Richardson, C.A. (2012-06-21): NOAA/WDS Paleoclimatology - North Icelandic Shelf 1350 Year Molusc Radiocarbon Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/9pdq-xk02. Accessed [date].
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otherConstraints: 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.
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otherConstraints: 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.
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otherConstraints: 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.
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title: Surface changes in the North Atlantic meridional overturning circulation during the last millennium
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date: 2012
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individualName: Wanamaker, A.D., P.G. Butler, J.D. Scourse, J. Heinemeier, J. Eiríksson, K.L. Knudsen, and C.A. Richardson
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description: Wanamaker, A.D., P.G. Butler, J.D. Scourse, J. Heinemeier, J. Eiríksson, K.L. Knudsen, and C.A. Richardson, 2012: Surface changes in the North Atlantic meridional overturning circulation during the last millennium. Nature Communications, 3, , 10.1038/ncomms1901
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description: Date Range: 675 CE to 1950 CE; Date Range: 1275 cal yr BP to 0 cal yr BP;
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westBoundLongitude: -18.1957
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southBoundLatitude: 66.5265
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supplementalInformation: STUDY NOTES: Radiocarbon content of shells of the long-lived marine bivalve Arctica islandica collected on the North Icelandic shelf. The shells were absolutely dated using crossdating techniques derived from dendrochronology, and provide a 1350-year record of water mass migration and strength of the Atlantic meridional overturning circulation. Shells were collected near the island of Grimsey, North Icelandic Shelf, at a water depth of 81-83 m from the RV Bjarni Saemundsson (Cruise No. B05-2006, trawl B05AD03). Trawl B05AD03: 66°31.59'N, 18°11.74'W, ~82m water depth. ABSTRACT SUPPLIED BY ORIGINATOR: Despite numerous investigations, the dynamical origins of the Medieval Climate Anomaly and the Little Ice Age remain uncertain. A major unresolved issue relating to internal climate dynamics is the mode and tempo of Atlantic meridional overturning circulation variability, and the significance of decadal-to-centennial scale changes in Atlantic meridional overturning circulation strength in regulating the climate of the last millennium. Here we use the time-constrained high-resolution local radiocarbon reservoir age offset derived from an absolutely dated annually resolved shell chronology spanning the past 1,350 years, to reconstruct changes in surface ocean circulation and climate. The water mass tracer data presented here from the North Icelandic shelf, combined with previously published data from the Arctic and subtropical Atlantic, show that surface Atlantic meridional overturning circulation dynamics likely amplified the relatively warm conditions during the Medieval Climate Anomaly and the relatively cool conditions during the Little Ice Age within the North Atlantic sector.
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fees: In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
orderingInstructions: Contact NCEI for other distribution options and instructions.
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