noaa-tree-37426 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2024-03-13 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Wiles - Wright Mountain Update - TSME - ITRDB AK209 2023-02-10 publication doi:10.25921/zqx9-3t97 noaa-tree-37426 NCEI DSI 1200_02 NCEI DSI 1200_01 Wiles, G. originator Wiles, G. 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 Tree Ring. The data include parameters of tree ring with a geographic location of Alaska, United States Of America. The time period coverage is from 340 to -60 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives. Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets. Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncei.noaa.gov/products/paleoclimatology/tree-ring completed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncei.noaa.gov/pub/data/paleo/webimages/pc-default-tree.png Paleoclimatology - Tree Ring PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Biological Records > Tree Rings Earth Science > Paleoclimate > Land Records > Tree Rings theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree ring earth science > paleoclimate > tree-ring > width theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian TSME Tsuga mertensiana (Bong.) Carrière mountain hemlock theme What: total ring width; Material: null What: total ring width; Material: null What: total ring width; Material: null What: total ring width; Material: null What: total ring width; Material: null What: total ring width; Material: null What: blue intensity; Material: earlywood What: blue intensity; Material: latewood What: total ring width; Material: null What: total ring width; Material: null What: total ring width; Material: null What: age; Material: null What: total ring width; Material: null What: total ring width; Material: null What: total ring width; Material: null What: total ring width; Material: null What: total ring width; Material: null What: total ring width; Material: null What: delta blue intensity; Material: wood What: total ring width; Material: null What: total ring width; Material: null What: total ring width; Material: null theme Paleoenvironmental Standard Terms (PaST) Thesaurus NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/paleoclimatology/paleoenvironmental-standard-terms-thesaurus PaST Thesaurus information publisher Continent > North America > United States Of America > Alaska > Wright Mountain AK > LATITUDE 58.74 > LONGITUDE -135.98 place DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: Wiles, G. (2023-02-10): NOAA/WDS Paleoclimatology - Wiles - Wright Mountain Update - TSME - ITRDB AK209. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/zqx9-3t97. 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. Experiments based on blue intensity for reconstructing North Pacific temperatures along the Gulf of Alaska 2017 publication Wilson, Rob; Rosanne D'Arrigo; Laia Andreu-Hayles; Rose Oelkers; Greg Wiles; Kevin Anchukaitis; Nicole Davi author Climate of the Past publisher https://doi.org/10.5194/cp-13-1007-2017 HTTPS Web Browser Associated Reference published 2017 Wilson, Rob; Rosanne D'Arrigo; Laia Andreu-Hayles; Rose Oelkers; Greg Wiles; Kevin Anchukaitis; Nicole Davi, 2017: Experiments based on blue intensity for reconstructing North Pacific temperatures along the Gulf of Alaska. Climate of the Past, 13, 1007-1022, 10.5194/cp-13-1007-2017 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 1610 CE to 2010 CE; Date Range: 340 cal yr BP to -60 cal yr BP; -135.98 -135.98 58.74 58.74 Study Coordinates 58.74 -135.98 1610 2010 ABSTRACT SUPPLIED BY ORIGINATOR: Ring-width (RW) records from the Gulf of Alaska (GOA) have yielded a valuable long-term perspective for North Pacific changes on decadal to longer timescales in prior studies but contain a broad winter to late summer seasonal climate response. Similar to the highly climate-sensitive maximum latewood density (MXD) proxy, the blue intensity (BI) parameter has recently been shown to correlate well with year-to-year warm-season temperatures for a number of sites at northern latitudes. Since BI records are much less labour intensive and expensive to generate than MXD, such data hold great potential value for future tree-ring studies in the GOA and other regions in mid- to high latitudes. Here we explore the potential for improving tree-ring-based reconstructions using combinations of RW- and BI-related parameters (latewood BI and delta BI) from an experimental subset of samples at eight mountain hemlock (Tsuga mertensiana) sites along the GOA. This is the first study for the hemlock genus using BI data. We find that using either inverted latewood BI (LWBinv) or delta BI (DB) can improve the amount of explained temperature variance by > 10 % compared to RW alone, although the optimal target season shrinks to June–September, which may have implications for studying ocean–atmosphere variability in the region. One challenge in building these BI records is that resin extraction did not remove colour differences between the heartwood and sapwood; thus, long term trend biases, expressed as relatively warm temperatures in the 18th century, were noted when using the LWBinv data. Using DB appeared to overcome these trend biases, resulting in a reconstruction expressing 18th–19th century temperatures ca. 0.5 °C cooler than the 20th–21st centuries. This cool period agrees well with previous dendroclimatic studies and the glacial advance record in the region. Continuing BI measurement in the GOA region must focus on sampling and measuring more trees per site (> 20) and compiling more sites to overcome site-specific factors affecting climate response and using subfossil material to extend the record. Although LWBinv captures the inter-annual climate signal more strongly than DB, DB appears to better capture long-term secular trends that agree with other proxy archives in the region. Great care is needed, however, when implementing different detrending options and more experimentation is necessary to assess the utility of DB for different conifer species around the Northern Hemisphere. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor 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. Contact NCEI for other distribution options and instructions. Native Format(s) https://doi.org/10.25921/zqx9-3t97 HTTPS Landing Page Metadata Landing Page NCEI landing page with general information and links to access the data. information https://www.ncei.noaa.gov/access/paleo-search/study/37426 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/tree-ring HTTPS Information NCEI Tree Ring Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak209bl.rwl HTTPS Download /treering/measurements/northamerica/usa/ak209bl.rwl Raw Measurements download https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak209bl-rwl-noaa.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak209be.rwl HTTPS Download /treering/measurements/northamerica/usa/ak209be.rwl Raw Measurements download https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak209be-rwl-noaa.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak209bd.rwl HTTPS Download /treering/measurements/northamerica/usa/ak209bd.rwl Raw Measurements download https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak209bd-rwl-noaa.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak209.rwl HTTPS Download /treering/measurements/northamerica/usa/ak209.rwl Raw Measurements download https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak209-rwl-noaa.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/correlation-stats/ak209.txt HTTPS Download /treering/measurements/correlation-stats/ak209.txt Correlation download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21