NOAA/WDS Paleoclimatology - Southern British Columbia 400 Year Summer Temperature Reconstructions


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    fileIdentifier:  noaa-recon-19767
    language:  eng; USA
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        individualName:  Bauer, Bruce
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                electronicMailAddress:  paleo@noaa.gov
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    dateStamp:  2019-07-24
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    metadataStandardVersion:  ISO 19115-2:2009(E)
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  NOAA/WDS Paleoclimatology - Southern British Columbia 400 Year Summer Temperature Reconstructions
            date:  (CI_Date)
                date:  2016-02-05
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                code:  noaa-recon-19767
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                code:  NCEI DSI 1200_01
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                individualName:  Wilson, R.J.S.
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                individualName:  Wilson, R.J.S.
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                individualName:  Rao, R.
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                individualName:  Rao, R.
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                individualName:  Rydval, M.
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                individualName:  Rydval, M.
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                individualName:  Wood, C.V.
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                individualName:  Wood, C.V.
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                individualName:  Larsson, L.
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                individualName:  Larsson, L.
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                individualName:  Luckman, B.H.
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                individualName:  Luckman, B.H.
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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 Climate Reconstruction. The data include parameters of climate reconstructions|tree ring with a geographic location of British Columbia, Canada. The time period coverage is from 350 to -47 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 temperature, precipitation, and other climate variables derived from paleoclimate proxies. Parameter keywords describe what was measured in this data set. Additional summary information can be found in the abstracts of papers listed in the data set citations.
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            individualName:  Bauer, Bruce
            organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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                    administrativeArea:  CO
                    postalCode:  80305-3328
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                    electronicMailAddress:  paleo@noaa.gov
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            fileDescription:  Paleoclimatology - Climate Reconstruction
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        descriptiveKeywords:  (MD_Keywords)
            keyword:  Earth Science > Climate Indicators > Paleoclimate Indicators > Paleoclimate Reconstructions
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            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > climate reconstructions|tree ring
            keyword:  earth science > paleoclimate > reconstructions > air temperature
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                            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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            keyword:  Air Temperature Reconstruction
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            keyword:  Continent > North America > Canada > British Columbia> Southern British Columbia > LATITUDE > LONGITUDE
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            otherConstraints:  Cite as: Wilson, R.J.S.; Rao, R.; Rydval, M.; Wood, C.V.; Larsson, L.; Luckman, B.H. (2016-02-05): NOAA/WDS Paleoclimatology - Southern British Columbia 400 Year Summer Temperature Reconstructions. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/19767. Accessed [date].
        resourceConstraints:  (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:  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:  Blue Intensity for dendroclimatology: The BC blues: A case study from British Columbia, Canada
                date:  (CI_Date)
                    date:  2014
                    dateType:  (CI_DateTypeCode) publication
                citedResponsibleParty:  (CI_ResponsibleParty)
                    individualName:  Rob Wilson, Rohit Rao, Miloš Rydval, Cheryl Wood, Lars-Åke Larsson, and Brian H. Luckman
                    role:  (CI_RoleCode) author
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  The Holocene
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                            linkage: https://doi.org/10.1177/0959683614544051
                            protocol:  HTTPS
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                            name:  Associated Reference published 2014
                            description:  Rob Wilson, Rohit Rao, Miloš Rydval, Cheryl Wood, Lars-Åke Larsson, and Brian H. Luckman, 2014: Blue Intensity for dendroclimatology: The BC blues: A case study from British Columbia, Canada. The Holocene, 24, 1428-1438, 10.1177/0959683614544051
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        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) geoscientificInformation
        extent:  (EX_Extent)
            description:  Date Range: 1600 AD to 1997 AD; Date Range: 350 cal yr BP to -47 cal yr BP;
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -122
                eastBoundLongitude:  -117
                southBoundLatitude:  49
                northBoundLatitude:  51
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  1600
                    endPosition:  1997
        supplementalInformation:  STUDY NOTES: Summer (May-June-July-August) temperature reconstructions for southern British Columbia, based on tree-ring width (RW), maximum density (MXD), and Blue Intensity (BI) measurements from 7 sites. ABSTRACT SUPPLIED BY ORIGINATOR: Maximum latewood density (MXD) is a strong proxy of summer temperatures. Despite this, there is a paucity of long MXD chronologies in the Northern Hemisphere, which limits large-scale tree-ring-based reconstructions of past temperature which are dominated by ring-width (RW) data - a weaker temperature proxy at inter-annual time-scales. This paucity likely results from the relative expense of measuring MXD and the lack of laboratories with the facilities to measure it. Herein, we test the ability of a relatively new, less expensive, tree-ring parameter, Blue Intensity (BI), to act as a surrogate parameter for MXD. BI was measured on Engelmann spruce samples from British Columbia where MXD had previously been measured to allow direct comparison between the two parameters. Signal strength analyses indicate that 8 MXD series were needed to acquire a robust mean chronology while BI needed 14. Utilising different detrending methods and parameter choices (RW + MXD vs RW + BI), a suite of reconstruction variants was developed. The explained variance from the regression modelling (1901-1995) of May-August maximum temperatures ranged from 52% to 55%. Validation tests over the earlier 1870-1900 period could not statistically distinguish between the different variants, although spectral analysis identified more lower frequency information extant in the MXD-based reconstructions - although this result was sensitive to the detrending method used. Ultimately, despite the MXD-based reconstruction explaining slightly more of the climatic variance, statistically robust reconstructions of past summer temperatures were also derived using BI. These results suggest that there is great potential in utilising BI for dendroclimatology in place of MXD data. However, more experimentation is needed to understand (1) how well BI can capture centennial and lower frequency information and (2) what biases may result from wood discolouration, either from species showing a distinct heartwood/sapwood boundary or from partly decayed sub-fossil samples.
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                        deliveryPoint:  151 Patton Avenue
                        deliveryPoint:  Veach-Baley Federal Building, Room 468
                        city:  Asheville
                        administrativeArea:  NC
                        postalCode:  28801-5001
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                    linkage: https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/canada/bc2014temp-rw-mxd-bi.txt
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        maintenanceNote:  This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25