noaa-recon-12890 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 2024-02-20 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Western North America 500 Year Annual Temperature Reconstruction 2012-04-09 publication doi:10.25921/hx0x-m820 noaa-recon-12890 NCEI DSI 1200_02 NCEI DSI 1200_01 Wahl, E.R. originator Wahl, E.R. author Smerdon, J.E. originator Smerdon, J.E. 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 Climate Reconstruction. The data include parameters of climate reconstructions|tree ring with a geographic location of North America. The time period coverage is from 450 to -30 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. 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. 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-recon.png Paleoclimatology - Climate Reconstruction PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Paleoclimate Reconstructions 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 > climate reconstructions|tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > climate reconstructions|tree ring earth science > paleoclimate > reconstructions > air temperature 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 theme What: longitude; Material: null What: latitude; Material: null What: age; Material: null What: temperature; Material: null What: temperature; Material: null What: temperature; Material: null What: temperature; 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 > West Central 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: Wahl, E.R.; Smerdon, J.E. (2012-04-09): NOAA/WDS Paleoclimatology - Western North America 500 Year Annual Temperature Reconstruction. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/hx0x-m820. 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. Comparative performance of paleoclimate field and index reconstructions derived from climate proxies and noise-only predictors 2012 publication Wahl, E.R. and J.E. Smerdon author Geophysical Research Letters publisher https://doi.org/10.1029/2012GL051086 HTTPS Web Browser Associated Reference published 2012 Wahl, E.R. and J.E. Smerdon, 2012: Comparative performance of paleoclimate field and index reconstructions derived from climate proxies and noise-only predictors. Geophysical Research Letters, 39, , 10.1029/2012GL051086 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 1500 CE to 1980 CE; Date Range: 450 cal yr BP to -30 cal yr BP; -130 -95 30 55 1500 1980 STUDY NOTES: This article presents a tree ring-based reconstruction of western North America annual temperature over 1500-1980, with 5x5 degree grid cell coverage for the region bounded by 30°-55°N and 95°-130°W. A 1000-member probabilistic ensemble derived by bootstrap methods is employed for characterization of uncertainty. A key result based on the ensemble methodology is that the most recent decades are, at the level of the bi-decadal average, very likely the warmest across the region during the past 500 years. The reconstruction is used in a side-by-side comparison with a parallel reconstruction driven by non-informative predictors that have the same temporal autoregressive structure as the tree ring data. The proxy-based reconstruction clearly outperforms the non-informative predictor-based reconstruction across a suite of calibration and validation skill measures. ABSTRACT SUPPLIED BY ORIGINATOR: The performance of climate field reconstruction (CFR) and index reconstruction methods is evaluated using proxy and non-informative predictor experiments. The skill of both reconstruction methods is determined using proxy data targeting the western region of North America. The results are compared to those targeting the same region, but derived from non-informative predictors comprising red-noise time series reflecting the full temporal autoregressive structure of the proxy network. All experiments are performed as probabilistic ensembles, providing estimated Monte Carlo distributions of reconstruction skill. Results demonstrate that the CFR skill distributions from proxy data are statistically distinct from and outperform the corresponding skill distributions generated from non-informative predictors; similar relative performance is demonstrated for the index reconstructions. In comparison to the CFR results using proxy information, the index reconstructions exhibit similar skill in calibration, but somewhat less skill in validation and a tendency to underestimate the amplitude of the validation period mean. 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/hx0x-m820 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/12890 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/climate-reconstruction HTTPS Information NCEI Climate Reconstruction Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/wahl2012/readme-wahl2012.txt HTTPS Download /contributions_by_author/wahl2012/readme-wahl2012.txt Readme download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/wahl2012/SW_NAm_Recon_MeanT_1500-1980.dat HTTPS Download /contributions_by_author/wahl2012/SW_NAm_Recon_MeanT_1500-1980.dat Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/wahl2012/SW_NAm_Recon_Grid_Uncert_1500-1980_mean_sd.nc HTTPS Download /contributions_by_author/wahl2012/SW_NAm_Recon_Grid_Uncert_1500-1980_mean_sd.nc Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/wahl2012/SW_NAm_Recon_Grid_Uncert_1500-1980.nc HTTPS Download /contributions_by_author/wahl2012/SW_NAm_Recon_Grid_Uncert_1500-1980.nc Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/wahl2012/SW_NAm_Recon_Grid_1500-1980.nc HTTPS Download /contributions_by_author/wahl2012/SW_NAm_Recon_Grid_1500-1980.nc Original Data and Full Metadata download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21