noaa-tree-36414 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 2024-07-10 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Stewart - Treasure Creek - PCMA - ITRDB AK188 2022-05-09 publication doi:10.25921/nzz6-c186 noaa-tree-36414 NCEI DSI 1200_02 NCEI DSI 1200_01 Stewart, A.K. originator Stewart, A.K. author Hubbard, T.D. originator Hubbard, T.D. author Leech, M. originator Leech, M. 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 91 to -67 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 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 Arctic Earth Surface Conditions Reconstruction Other Reconstruction PCMA Picea mariana (Mill.) Britton, Sterns, & Poggenb. black spruce 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: 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: 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: 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: 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: 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: 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 > Treasure Creek > LATITUDE 65.02 > LONGITUDE -147.74 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: Stewart, A.K.; Hubbard, T.D.; Leech, M. (2022-05-09): NOAA/WDS Paleoclimatology - Stewart - Treasure Creek - PCMA - ITRDB AK188. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/nzz6-c186. 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. 10th World Dendrochronological Conference, Thimphu, Bhutan 2018: Landscape instability, permafrost and remote infrastructure corridors: reaction-wood analyses using black spruce, Alaska 2018 publication Alexander K. Stewart, Trent D. Hubbard, Catherine Heinrich, Helen Eifert, and Maria Leech author Unpublished Data publisher crossReference sciencePaper eng; USA geoscientificInformation Date Range: 1859 CE to 2017 CE; Date Range: 91 cal yr BP to -67 cal yr BP; -147.74 -147.74 65.02 65.02 Study Coordinates 65.02 -147.74 1859 2017 STUDY NOTES: NOAA Template Raw Measurements file added 2022-05-31. July 2024: Elevation added by WDS-Paleo using get_elev_point() from the elevatr R package with the USGS Elevation Point Query Service (epqs) and WGS 84 reference frame. ABSTRACT SUPPLIED BY ORIGINATOR: Alaska's infrastructure corridors are some of the more remote in North America; providing access to critical resources from a regional (e.g., Trans-Alaska Pipeline System) to a local scale (e.g., remote Alaska Native communities). Many corridors were developed quickly and with limited planning and understanding of cold-regions engineering in geologically complex terrains with widespread permafrost. This results in unique climate-driven maintenance requirements with a projected need of an additional $6.1 billion for normal wear-and-tear costs until 2030 (Larsen et al., 2008). In collaboration with the Alaskan Department of Transportation and Public Facilities and the Alaska Division of Geological & Geophysical Surveys, we have leveraged reaction-wood analyses in black spruce (Picea mariana) to evaluate landscape stability along important infrastructure corridors in three sites across Alaska-Northway Junction, Tonsina Hill, and Treasure Creek. At each site, 60 samples from 30 visibly tilted trees were collected, digitized, and quality checked using COFECHA software with reaction-wood years recorded. At Northway Junction along the Alaska Highway in east-central Alaska, an area of discontinuous permafrost of low to moderate ice content, there was a site-wide, rapid onset of reaction wood in 1989. Widespread tilting of trees on a retrogressive mass movement, likely a response to thawing permafrost conditions, necessitated an expensive road realignment. At the Tonsina Hill site along the Richardson Highway south of Glennallen in an area of sporadic permafrost, rapid onset of reaction wood began in 1978 and is likely associated with permafrost degradation due to increased heavy-equipment traffic from emplacement of the Trans- Alaska Pipeline. At the Treasure Creek site near Fairbanks, remote-sensing image analysis and geophysical data indicate land instability in an area of permafrost degradation, but the reaction wood signal is weak and monotonous from 1950 to the present (mean of 7 percent of recorded growth); this likely represents characteristic tree instability above frozen ground of variable ice content. Because each site is situated atop permafrost, unstable ground is expected under certain conditions (e.g., riverbank retreat, human influence) exacerbating the relatively quiescent process of permafrost thaw. As Alaska continues to modernize in concert with record population growth (10- fold increase in the past 70 years), efforts to recognize, mitigate, and/or prevent permafrost-thaw- induced landscape changes have become a focus for infrastructure projects. Improved evaluation of infrastructure siting and smarter technologies could help minimize the effects of permafrost thaw on human concerns. 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/nzz6-c186 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/36414 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/ak188.rwl HTTPS Download /treering/measurements/northamerica/usa/ak188.rwl Raw Measurements download https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak188-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/ak188.txt HTTPS Download /treering/measurements/correlation-stats/ak188.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