NOAA/WDS Paleoclimatology - Chugach Range, Alaska 6,500 Year Sediment Data, Hallet and Greyling Lakes
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organisationName: NOAA World Data Service for Paleoclimatology
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dateStamp: 2023-09-01
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title: NOAA/WDS Paleoclimatology - Chugach Range, Alaska 6,500 Year Sediment Data, Hallet and Greyling Lakes
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date: 2008-11-01
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Anchor: DOI doi:10.25921/wrge-r006
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code: noaa-lake-6199
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code: NCEI DSI 1200_02
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code: NCEI DSI 1200_01
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individualName: McKay, N.P.
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individualName: McKay, N.P.
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individualName: Kaufman, D.S.
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individualName: Kaufman, D.S.
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organisationName: NOAA National Centers for Environmental Information
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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 paleolimnology with a geographic location of Alaska, United States Of America. The time period coverage is from 6450 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.
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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organisationName: NOAA World Data Service for Paleoclimatology
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country: USA
electronicMailAddress: paleo@noaa.gov
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fileDescription: Paleoclimatology - Lake
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keyword: Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records
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title: Global Change Master Directory (GCMD) Science Keywords
date: (CI_Date)
date: 2020-01-09
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edition: 9.1
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organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System
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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 > paleolimnology > geochemistry
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keyword: What: biogenic silica; Material: sediment
keyword: What: density; Material: dry sediment
keyword: What: organic matter; Material: sediment
keyword: What: age; Material: null
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keyword: Continent > North America > United States Of America > Alaska > Hallet Lake > LATITUDE 61.5 > LONGITUDE -146.2
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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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linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
name: Global Change Master Directory (GCMD) Keywords
description: 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.
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otherConstraints: Cite as: McKay, N.P.; Kaufman, D.S. (2008-11-01): NOAA/WDS Paleoclimatology - Chugach Range, Alaska 6,500 Year Sediment Data, Hallet and Greyling Lakes. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/wrge-r006. Accessed [date].
resourceConstraints: Distribution Liability (MD_LegalConstraints)
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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: None
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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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aggregateDataSetName: (CI_Citation)
title: Holocene climate and glacier variability at Hallet and Greyling Lakes, Chugach Mountains, south-central Alaska
date: (CI_Date)
date: 2009
dateType: (CI_DateTypeCode) publication
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individualName: McKay, N.P. and D.S. Kaufman.
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organisationName: Journal of Paleolimnology
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linkage: https://doi.org/10.1007/s10933-008-9260-0
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name: Associated Reference published 2009
description: McKay, N.P. and D.S. Kaufman., 2009: Holocene climate and glacier variability at Hallet and Greyling Lakes, Chugach Mountains, south-central Alaska. Journal of Paleolimnology, 41, 143-159, 10.1007/s10933-008-9260-0
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language: eng; USA
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extent: (EX_Extent)
description: Date Range: 6450 cal yr BP to -50 cal yr BP;
geographicElement: (EX_GeographicBoundingBox)
westBoundLongitude: -146.2
eastBoundLongitude: -146.2
southBoundLatitude: 61.5
northBoundLatitude: 61.5
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description: Study Coordinates
pos: 61.5 -146.2
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TimePeriod:
beginPosition: -4500
endPosition: 2000
supplementalInformation: STUDY NOTES: High resolution organic matter, biogenic silica, and dry bulk density data from Hallet and Greyling Lakes, Chugach Range, South Central Alaska. Hallet Lake: 61.5°N, 146.2°W, 1128m elev. Greyling Lake: 61.4°N, 145.7°W, 1016m elev. LAST UPDATE: 2/2009. Hallet Lake Biogenic Silica data replaced. Incorrect data file was originally archived 11/2008. ABSTRACT SUPPLIED BY ORIGINATOR: Evidence from lake sediments and glacier forefields from two hydrologically isolated lake basins is used to reconstruct Holocene glacier and climate history at Hallet and Greyling Lakes in the central Chugach Mountains of south-central Alaska. Glacial landform mapping, lichenometry, and equilibrium-line altitude reconstructions, along with changes in sedimentary biogenic-silica content, bulk density, and grain-size distribution indicate a dynamic history of Holocene climate variability. The evidence suggests a warm early Holocene from 10 to 6 ka, followed by the onset of Neoglaciation in the two drainage basins, beginning between 4.5 and 4.0 ka. During the past 2 ka, the glacial landforms and lacustrine sediments from the two valleys record a remarkably similar history of glaciation, with two primary advances, one during the first millennium AD, from ~500 to 800 AD, and the second during the Little Ice Age (LIA) from ~1400 to 1900 AD. During the LIA, the reconstructed equilibrium-line altitude in the region was no more than 83-44m (n = 21) lower than the modern, which is based on the extent of glaciers during 1978. Differences between the summer temperature inferred from the biogenic-silica content and the evidence for glacial advances and retreats suggest a period of increased winter precipitation from 1300 to 1500 AD, and reduced winter precipitation from 1800 to 1900 AD, likely associated with variability in the strength of the Aleutian Low.
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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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maintenanceNote: This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21