noaa-tree-39559 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 2024-10-30 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - PAGES North America 2k Detrending Database 2024-06-11 publication doi:10.25921/aqew-vr90 noaa-tree-39559 NCEI DSI 1200_02 NCEI DSI 1200_01 Anchukaitis, K.J. originator Anchukaitis, K.J. author Pederson, G.T. originator Pederson, G.T. author St. George, S. originator St. George, S. author McKay, N.P. originator McKay, N.P. author Routson, C. originator Routson, C. author Thapa, U.K. originator Thapa, U.K. 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 North America. The time period coverage is from 2370 to -62 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 > density earth science > paleoclimate > software 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 Air Temperature Reconstruction PAGES 2k Network theme What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring density What: number of samples; Material: null What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring density What: age; Material: null What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring width What: tree ring standardized growth index; Material: ring density What: tree ring standardized growth index; Material: ring density 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 > PAGES North America > LATITUDE > LONGITUDE 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: Anchukaitis, K.J.; Pederson, G.T.; St. George, S.; McKay, N.P.; Routson, C.; Thapa, U.K. (2024-06-11): NOAA/WDS Paleoclimatology - PAGES North America 2k Detrending Database. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/aqew-vr90. 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. Does signal-free detrending increase chronology coherence in large tree-ring networks? 2020 publication McPartland, M. Y., St. George, S., Pederson, G. T., and Anchukaitis, K. J. author Dendrochronologia publisher https://doi.org/10.1016/j.dendro.2020.125755 HTTPS Web Browser Associated Reference published 2020 McPartland, M. Y., St. George, S., Pederson, G. T., and Anchukaitis, K. J., 2020: Does signal-free detrending increase chronology coherence in large tree-ring networks?. Dendrochronologia, 63, , 10.1016/j.dendro.2020.125755 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: -420 CE to 2012 CE; Date Range: 2370 cal yr BP to -62 cal yr BP; -162.27 -61 25.07 68.65 -420 2012 STUDY NOTES: PAGES North America 2k database, detrended in 6 different ways (1) Negative Exponential curves, 2) Age-dependent spline, 3) Age-dependent spline + variance stabilization, 4) Signal-free detrending, 5) Signal-free detrending + variance stabilization, 6) Regional curve standardization). The data is stored in LiPD format. Online resources for how to extract data from these types of data objects at https://lipdverse.org/. Three datasets are provided in LiPD format: "D", in which all data are grouped by site (total number of entries = 230); "treeTS", in which individual detrending methods are ungrouped (total number of entries = 1837); and "TS", in which individual detrending methods and their expressed population signal and average correlation coefficient statistics are ungrouped (total number of entries = 9190). Provided Keywords: Detrending, tree rings, temperature, PAGES2k ABSTRACT SUPPLIED BY ORIGINATOR: Over the past decade, dendrochronologists have increasingly adopted the signal-free detrending (SFD) method to remove age-size trends in tree-ring measurement series, amplify the common stand-wide signal in composite chronologies, and recover medium- to low-frequency patterns that may be inadvertently removed by other detrending approaches. However, since its introduction in 2008, no systematic evaluation of the effects of SFD on tree-ring chronologies has been performed. Here we conduct the first review of SFD in dendrochronology and assess its effects when applied to large tree-ring networks. We analyzed the PAGES North America 2 K database of nearly 300 temperature-sensitive chronologies and the Missouri River database of over 350 chronologies curated for the purpose of reconstructing Missouri River streamflow. Both databases contain multiple versions of each chronology generated by different detrending methods, including those produced with (and without) the signal-free procedure applied. We evaluated (i) whether SFD increases chronology coherence at the site level by boosting the between-tree agreement, (ii) whether SFD increases coherence on a regional basis by making neighboring chronologies more similar to each other, and (iii) whether signal-free chronologies retained more medium- to low-frequency variability than their traditional counterparts. We find that, while SFD increased the strength of common signals in many instances, the effect was not universal and some sites even show a decrease in signal coherence. At regional scales, SFD increases chronology coherence in temperature-sensitive records but had no detectable effect on moisture-sensitive records. Our results demonstrate the importance of evaluating the effects of SFD prior to deploying this method for chronology development and paleoclimate reconstruction. 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/aqew-vr90 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/39559 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/pages2k/mcpartland2020/treetsv9_noaa.Rdata HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/pages2k/mcpartland2020/nam2k_dataprocessnoaa.R HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/pages2k/mcpartland2020/mcpartland2020-northamerica2kdetrending.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/pages2k/mcpartland2020/mcpartland2020-northamerica2kdetrending-RecordsUsed_Metadata.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21