NOAA/WDS Paleoclimatology - Qalluuraq Lake, Alaska 12,000 Year Multiproxy Methane Sediment Data
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title: NOAA/WDS Paleoclimatology - Qalluuraq Lake, Alaska 12,000 Year Multiproxy Methane Sediment Data
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date: 2012-06-30
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Anchor: DOI doi:10.25921/4czp-dw79
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code: noaa-lake-13075
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code: NCEI DSI 1200_02
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individualName: Gaglioti, B.V.
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individualName: Langdon, P.G.
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individualName: Jones, M.C.
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individualName: Walter Anthony, K.M.
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individualName: Walter Anthony, K.M.
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individualName: Hinrichs, K.-U.
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individualName: Elvert, M.
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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 Lake. The data include parameters of climate reconstructions|insect|paleolimnology with a geographic location of Alaska, United States Of America. The time period coverage is from 12569 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 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.
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fileName: https://www.ncei.noaa.gov/pub/data/paleo/webimages/pc-default-lake.png
fileDescription: Paleoclimatology - Lake
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keyword: Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records
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keyword: earth science > paleoclimate > climate reconstructions|insect|paleolimnology
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keyword: earth science > paleoclimate > paleolimnology
keyword: earth science > paleoclimate > paleolimnology
keyword: earth science > paleoclimate > paleolimnology
keyword: earth science > paleoclimate > paleolimnology
keyword: earth science > paleoclimate > insect|paleolimnology
keyword: earth science > paleoclimate > paleolimnology
keyword: earth science > paleoclimate > insect|paleolimnology
keyword: earth science > paleoclimate > paleolimnology
keyword: earth science > paleoclimate > paleolimnology
keyword: earth science > paleoclimate > climate reconstructions|insect|paleolimnology
keyword: earth science > paleoclimate > paleolimnology
keyword: earth science > paleoclimate > paleolimnology > physical properties
keyword: earth science > paleoclimate > paleolimnology > population abundance
keyword: earth science > paleoclimate > paleolimnology > geochemistry
keyword: earth science > paleoclimate > paleolimnology > reconstruction
keyword: earth science > paleoclimate > paleolimnology > oxygen isotopes
keyword: earth science > paleoclimate > paleolimnology > carbon isotopes
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keyword: Arctic
keyword: PAGES Arctic 2k
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keyword: What: surface air temperature; Material: midge assemblage
keyword: What: delta 13C; Material: sediment
keyword: What: delta 13C; Material: C27 n-alkane
keyword: What: delta 13C; Material: organic matter
keyword: What: magnetic susceptibility; Material: sediment
keyword: What: organic carbon; Material: sediment
keyword: What: delta 13C; Material: midge
keyword: What: delta 13C; Material: ephippia
keyword: What: delta 18O; Material: midge
keyword: What: nitrogen; Material: sediment
keyword: What: delta 15N; Material: sediment
keyword: What: depth; Material: null
keyword: What: carbon/nitrogen; Material: sediment
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keyword: Continent > North America > United States Of America > Alaska > Qalluuraq Lake > LATITUDE 70.379 > LONGITUDE -157.348
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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: Wooller, M.J.; Pohlman, J.; Gaglioti, B.V.; Langdon, P.G.; Jones, M.C.; Walter Anthony, K.M.; Becker, K.W.; Hinrichs, K.-U.; Elvert, M. (2012-06-30): NOAA/WDS Paleoclimatology - Qalluuraq Lake, Alaska 12,000 Year Multiproxy Methane Sediment Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/4czp-dw79. 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: Reconstruction of past methane availability in an Arctic Alaska wetland indicates climate influenced methane release during the past ~12,000 years
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date: 2012
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individualName: Wooller, M.J., J.W. Pohlman, B.V. Gaglioti, P. Langdon, M. Jones, K.M. Walter Anthony, K.W. Becker, K.-U. Hinrichs, and M. Elvert.
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organisationName: Journal of Paleolimnology
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description: Wooller, M.J., J.W. Pohlman, B.V. Gaglioti, P. Langdon, M. Jones, K.M. Walter Anthony, K.W. Becker, K.-U. Hinrichs, and M. Elvert., 2012: Reconstruction of past methane availability in an Arctic Alaska wetland indicates climate influenced methane release during the past ~12,000 years. Journal of Paleolimnology, 48, 27-42, 10.1007/s10933-012-9591-8
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language: eng; USA
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description: Date Range: 12569 cal yr BP to 0 cal yr BP;
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westBoundLongitude: -157.348
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supplementalInformation: STUDY NOTES: Multiproxy sediment data from Qalluuraq Lake, Alaska, for the past 12,000 years. Paleoenvironmental proxies measured include stable isotopic ratios, organic carbon, magnetics, and plant macrofossils. ABSTRACT SUPPLIED BY ORIGINATOR: Atmospheric contributions of methane from Arctic wetlands during the Holocene are dynamic and linked to climate oscillations. However, long-term records linking climate variability to methane availability in Arctic wetlands are lacking. We present a multi-proxy ~12,000 year paleoecological reconstruction of intermittent methane availability from a radiocarbon-dated sediment core (LQ-West) taken from a shallow tundra lake (Qalluuraq Lake) in Arctic Alaska. Specifically, stable carbon isotopic values of photosynthetic biomarkers and methane are utilized to estimate the proportional contribution of methane-derived carbon to lake-sediment-preserved benthic (chironomids) and pelagic (cladocerans) components over the last ~12,000 years. These results were compared to temperature, hydrologic, and habitat reconstructions from the same site using chironomid assemblage data, oxygen isotopes of chironomid head capsules, and radiocarbon ages of plant macrofossils. Cladoceran ephippia from ~4,000 cal year BP sediments have d13C values that range from ~-39 to -31‰, suggesting peak methane carbon assimilation at that time. These low d13C values coincide with an apparent decrease in effective moisture and development of a wetland that included Sphagnum subsecundum. Incorporation of methane-derived carbon by chironomids and cladocerans decreased from ~2,500 to 1,500 cal year BP, coinciding with a temperature decrease. Live-collected chironomids with a radiocarbon age of 1,640 cal year BP, and fossil chironomids from 1,500 cal year BP in the core illustrate that ‘old’ carbon has also contributed to the development of the aquatic ecosystem since ~1,500 cal year BP. The relatively low d13C values of aquatic invertebrates (as low as -40.5‰) provide evidence of methane incorporation by lake invertebrates, and suggest intermittent climate-linked methane release from the lake throughout the Holocene.
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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.
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