noaa-lake-16279 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 - Abrupt Holocene climate transitions in the northern North Atlantic region recorded by synchronized lacustrine records in Iceland 2014-02-25 publication noaa-lake-16279 NCEI DSI 1200_01 Geirsdóttir, A. originator Geirsdóttir, A. author Miller, G.H. originator Miller, G.H. author Larsen, D.J. originator Larsen, D.J. author Olafsdottir, S. originator Olafsdottir, 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 paleolimnology with a geographic location of Iceland, Northern Europe. The time period coverage is from 10300 to -56 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 > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology > magnetic susceptibility earth science > paleoclimate > paleolimnology > carbon isotopes earth science > paleoclimate > paleolimnology > physical properties earth science > paleoclimate > paleolimnology > geochemistry 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 Arctic Little Ice Age (LIA) Medieval Warm Period abrupt climate change theme Continent > Europe > Northern Europe > Iceland> Lake Hvítárvatn > LATITUDE 64.613723 > LONGITUDE -19.843769 Continent > Europe > Northern Europe > Iceland> Lake Haukadalsvatn > LATITUDE 65.055846 > LONGITUDE -21.625757 place otherRestrictions Cite as: Geirsdóttir, A.; Miller, G.H.; Larsen, D.J.; Olafsdottir, S. (2014-02-25): NOAA/WDS Paleoclimatology - Abrupt Holocene climate transitions in the northern North Atlantic region recorded by synchronized lacustrine records in Iceland. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/16279. 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. Abrupt Holocene climate transitions in the northern North Atlantic region recorded by synchronized lacustrine records in Iceland 2013 publication Geirsdóttir Á., G.H. Miller, D.J. Larsen, S. Ólafsdóttir author Quaternary Science Reviews publisher https://doi.org/10.1016/j.quascirev.2013.03.010 HTTPS Web Browser Associated Reference published 2013 Geirsdóttir Á., G.H. Miller, D.J. Larsen, S. Ólafsdóttir, 2013: Abrupt Holocene climate transitions in the northern North Atlantic region recorded by synchronized lacustrine records in Iceland. Quaternary Science Reviews, 70, 48-62, dx.doi.org/10.1016/j.quascirev.2013.03.010 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 10300 cal yr BP to -56 cal yr BP; -21.625757 -19.843769 64.613723 65.055846 -8350 2006 STUDY NOTES: Keywords - Iceland, Lake sediment, Holocene paleoclimate, Abrupt climate transitions, 8.2 Event, Holocene Thermal Maximum, Neoglaciation, Medieval warm period, Little Ice Age. ABSTRACT SUPPLIED BY ORIGINATOR: Two high-sediment-accumulation-rate Icelandic lakes, the glacial lake Hvítárvatn and the non-glacial lake Haukadalsvatn, contain numerous tephra layers of known age, which together with highresolution paleomagnetic secular variations allow synchronization with a well-dated marine core from the shelf north of Iceland. A composite standardized climate record from the two lakes provides a single time series that efficiently integrates multi-proxy data that reflect the evolution of summer temperatures through the Holocene. The first-order trends in biogenic silica (BSi), d13C, and C:N rise relatively abruptly following deglaciation, reaching maximum values shortly after 8 ka following a complex minimum between 8.7 and 8.0 ka. The Holocene Thermal Maximum (HTM) in the lakes is marked by all proxies, with a sharp transition out of the 8 ka cold event into peak summer warmth by 7.9 ka, and continuing warm with some fluctuations until 5.5 ka. Decreasing summer insolation after the HTM is reflected by incremental cooling, initially w5.5 ka, with subsequent cold perturbations recorded by all proxies 4.3 to 4.0 ka and 3.1 to 2.8 ka. The strongest disturbance occurred after 2 ka with initial summer cooling occurring between 1.4 and 1.0 ka, followed by a more severe drop in summer temperatures after 0.7 ka culminating between 0.5 and 0.2 ka. Following each late Holocene cold departure, BSi re-equilibrated at a lower value independent of the sediment accumulation rate. Some of the abrupt shifts may be related to Icelandic volcanism influencing catchment stability, but the lack of a full recovery to pre-existing values after the perturbation suggests increased periglacial activity, decreased vegetation cover, and glacier growth in the highlands of Iceland. The similarity in timing, direction and magnitude of our multi-proxy records from glacial and non-glacial lakes, and from the adjacent marine shelf, suggests that our composite record reflects large-scale shifts in ocean/atmosphere circulation throughout the northern North Atlantic. 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Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-lake-16279 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/16279 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/europe/iceland/hak-geirsdottir-2013-raw-d13c-cn-bsi.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hvt-geirsdottir-2013-raw-cn.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hvt-geirsdottir-2013-resampled-sar.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hvt-geirsdottir-2013-resampled-bsi.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hvt-geirsdottir-2013-raw-tc.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hvt-geirsdottir-2013-raw-density.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hvt-geirsdottir-2013-resampled-tc.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hak-geirsdottir-2013-resampled-d13c-cn-bsi.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hvt-geirsdottir-2013-raw-bsi.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hak-geirsdottir-2013-resampled-sar-toc-ms.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hak-geirsdottir-2013-raw-sar-toc-ms.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hvt-geirsdottir-2013-resampled-density.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hvt-geirsdottir-2013-raw-d13c.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hvt-geirsdottir-2013-raw-sar.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hvt-geirsdottir-2013-resampled-cn.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/iceland/hvt-geirsdottir-2013-resampled-d13c.txt 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