noaa-lake-6198 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 2019-03-27 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Lake S41, Northwest Territories 2,000 Year Chironomid Inferred Temperature 2008-11-01 publication noaa-lake-6198 NCEI DSI 1200_01 MacDonald, G.M. originator MacDonald, G.M. author Porinchu, D.F. originator Porinchu, D.F. author Rolland, N. originator Rolland, N. author Kremenetskii, K.V. originator Kremenetskii, K.V. author Kaufman, D.S. originator Kaufman, D.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 insect|paleolimnology with a geographic location of Northwest Territories, Canada. The time period coverage is from 1930 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 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 > insect|paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > climate reconstructions|insect|paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > climate reconstructions|insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > climate reconstructions|insect|paleolimnology earth science > paleoclimate > climate reconstructions|insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > insect|paleolimnology earth science > paleoclimate > paleolimnology > population abundance 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 Air Temperature Reconstruction PAGES 2k Network PAGES Arctic 2k theme Continent > North America > Canada > Northwest Territories> Lake S41 > LATITUDE 63.718 > LONGITUDE -109.318 place otherRestrictions Cite as: MacDonald, G.M.; Porinchu, D.F.; Rolland, N.; Kremenetskii, K.V.; Kaufman, D.S. (2008-11-01): NOAA/WDS Paleoclimatology - Lake S41, Northwest Territories 2,000 Year Chironomid Inferred Temperature. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/6198. 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. Paleolimnological evidence of the response of the central Canadian treeline zone to radiative forcing and hemispheric patterns of temperature change over the past 2000 years 2009 publication MacDonald, G.M., D.F. Porinchu, N. Rolland, K.V. Kremenetsky, and D.S. Kaufman author Journal of Paleolimnology publisher https://doi.org/10.1007/s10933-008-9250-2 HTTPS Web Browser Associated Reference published 2009 MacDonald, G.M., D.F. Porinchu, N. Rolland, K.V. Kremenetsky, and D.S. Kaufman, 2009: Paleolimnological evidence of the response of the central Canadian treeline zone to radiative forcing and hemispheric patterns of temperature change over the past 2000 years. Journal of Paleolimnology, 41, 129-141, 10.1007/s10933-008-9250-2 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 1930 cal yr BP to -50 cal yr BP; -109.318 -109.318 63.718 63.718 Study Coordinates 63.718 -109.318 20 2000 STUDY NOTES: Chironomid-inferred summer air and surface water temperature, plus LOI and BSi data for Lake S41, Northwest Territories, Canada. ABSTRACT SUPPLIED BY ORIGINATOR: Instrumental climate records from the central Canadian treeline zone display a pattern of variation similar to general Northern Hemisphere temperature trends. To examine whether this general correspondence extends back beyond the instrumental record, we obtained a sediment core from Lake S41, a small lake in the Northwest Territories of Canada at 63deg 43.11'N, 109 deg 19.07'W. A radiocarbon-based chronology was developed for the core. The sediments were analyzed for organic-matter content by loss-on-ignition (LOI), biogenic-silica content (BSi), and chironomid community composition to reconstruct July air temperature and summer water temperature. The paleolimnological records were compared with records of atmospheric CO2 concentration, solar variability, and hemispheric temperature variations over the past 2000 years. The results of the analyses suggest that widely-documented long-term variations in Northern Hemisphere temperature associated with radiative forcing, namely the cooling following the medieval period during the Little Ice Age (LIA), and twentieth century warming, are represented in the central Canadian treeline zone. There is also evidence of a brief episode of warming during the eighteenth century. As evidenced by LOI and BSi, the twentieth century warming is typified by increased lake productivity relative to the LIA. Depending upon the measure, the increased productivity of the twentieth century nearly equals or exceeds that of any other period in the past 2000 years. In contrast, the rate of chironomid head capsule accumulation decreased and remained low during the twentieth century. Although the chironomid-inferred temperature reconstructions indicate cooling during the LIA, they present no evidence of greatly increased temperatures during the twentieth century. Warming during the twentieth century might have enhanced lake stratification, and the response of the chironomid fauna to warming was attenuated by decreased oxygen and lower temperatures in the hypolimnion of the more stratification-prone lake. 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Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-lake-6198 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/6198 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/northamerica/canada/nwt/s41-2008.xls HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/nwt/s41-2008.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