gov.noaa.nodc:0259492 eng utf8 model NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2025-12-16T13:10:03Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) GEFSv12 North Atlantic Oscillation Indices (NCEI Accession 0259492) 2022-11-09 publication 2022-09-13 creation International DOI Foundation (IDF) 10.25921/be7v-1s13 NOAA National Centers for Environmental Information gov.noaa.nodc:0259492 NCEI Archive Management System 0259492 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Zachary D. Lawrence University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences (CIRES) zachary.lawrence@noaa.gov https://cires.colorado.edu/ HTTPS University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences (CIRES) website Institution web page information resourceProvider University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences (CIRES) https://cires.colorado.edu/ HTTPS University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences (CIRES) website Institution web page information resourceProvider Zachary Lawrence US DOC/NOAA/National Weather Service (NWS) zachary.lawrence@noaa.gov http://www.weather.gov/ HTTP US DOC/NOAA/National Weather Service (NWS) website Institution web page information pointOfContact Dillon Elsbury University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences (CIRES) dillon.elsbury@noaa.gov https://cires.colorado.edu/ HTTPS University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences (CIRES) website Institution web page information collaborator Lawrence, Zachary D. NOAA National Weather Service http://www.weather.gov/ HTTP US DOC/NOAA/National Weather Service (NWS) website Institution web page information author Elsbury, Dillon University of Colorado - Boulder; Cooperative Institute for Research In Environmental Sciences dillon.elsbury@noaa.gov https://cires.colorado.edu/ HTTPS University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences (CIRES) website Institution web page information author US DOC/NOAA/National Weather Service (NWS) http://www.weather.gov/ HTTP US DOC/NOAA/National Weather Service (NWS) website Institution web page information contributor University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences (CIRES) https://cires.colorado.edu/ HTTPS University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences (CIRES) website Institution web page information contributor tableDigital The North Atlantic Oscillation (NAO) index characterizes the primary mode of atmospheric circulation variability over the North Atlantic region. This dataset provides NAO indices computed from the Global Ensemble Forecast System version 12 (GEFSv12) reanalysis and subseasonal reforecast datasets. These indices are defined from Empirical Orthogonal Function analysis of 500 millibar geopotential height fields in the region of 20-90N latitude, and 90W-40E longitude. For the GEFSv12 reanalysis, these indices are provided once daily for all dates from 2000-2019. For the GEFSv12 reforecasts, these indices are provided only for the subseasonal 35-day reforecasts, which are initialized once per week in the 2000-2019 period, starting from 2000-01-05. This dataset is available to the public for a wide variety of uses including scientific research and analysis. Funding Agency: NOAA National Weather Service (NWS) completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0259492 Preview graphic PNG 0259492 NCEI ACCESSION NUMBER 2022-08-18 publication model output theme NODC OBSERVATION TYPES THESAURUS University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences US DOC/NOAA/National Weather Service dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS climatology theme WMO_CategoryCode 2012-09-15 publication DOC/NOAA/NWS > National Weather Service, NOAA, U.S. Department of Commerce UCO/CIRES > Cooperative Institute for Research in Environmental Sciences, University of Colorado dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. 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 OSTI Weeks 3-4 Program project Provider Project Names North Atlantic Oscillation Index theme Provider Keywords Forecast / Reanalysis instrument Provider Instruments KXJYCM Send2NCEI Submission Package ID accessLevel: Public otherRestrictions Cite as: Lawrence, Zachary D.; Elsbury, Dillon (2022). GEFSv12 North Atlantic Oscillation Indices (NCEI Accession 0259492). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/be7v-1s13. Accessed [date]. 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. Guan, H., Zhu, Y., Sinsky, E., Fu, B., Li, W., Zhou, X., Xue, X., Hou, D., Peng, J., Nageswararao, M. M., Tallapragada, V., Hamill, T. M., Whitaker, J. S., Bates, G., Pegion, P., Frederick, S., Rosencrans, M., & Kumar, A. (2022). GEFSv12 Reforecast Dataset for Supporting Subseasonal and Hydrometeorological Applications. Monthly Weather Review, 150(3), 647–665. https://doi.org/10.1175/mwr-d-21-0245.1 2022-03 publication International DOI Foundation (IDF) https://doi.org/10.1175/mwr-d-21-0245.1 https://doi.org/10.1175/mwr-d-21-0245.1 HTTPS https://doi.org/10.1175/mwr-d-21-0245.1 Journal article information Guan, Hong a SRG at NOAA/NWS/NCEP/EMC, College Park, Maryland author Zhu, Yuejian b NOAA/NWS/NCEP/EMC, College Park, Maryland author Sinsky, Eric c IMSG at NOAA/NWS/NCEP/EMC, College Park, Maryland author Fu, Bing c IMSG at NOAA/NWS/NCEP/EMC, College Park, Maryland author Li, Wei c IMSG at NOAA/NWS/NCEP/EMC, College Park, Maryland author Zhou, Xiaqiong d CPAESS, University Corporation for Atmospheric Research at NOAA/NWS/NCEP/EMC and NOAA/OAR/GFDL, Princeton, New Jersey author Xue, Xianwu a SRG at NOAA/NWS/NCEP/EMC, College Park, Maryland author Hou, Dingchen b NOAA/NWS/NCEP/EMC, College Park, Maryland author Peng, Jiayi c IMSG at NOAA/NWS/NCEP/EMC, College Park, Maryland author Nageswararao, M. M. e CPAESS, University Corporation for Atmospheric Research at NOAA/NWS/NCEP/EMC, College Park, Maryland author Tallapragada, Vijay b NOAA/NWS/NCEP/EMC, College Park, Maryland author Hamill, Thomas M. f NOAA/Physical Sciences Laboratory, Boulder, Colorado author Whitaker, Jeffrey S. f NOAA/Physical Sciences Laboratory, Boulder, Colorado author Bates, Gary g Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, Colorado author Pegion, Philip f NOAA/Physical Sciences Laboratory, Boulder, Colorado author Frederick, Sherrie f NOAA/Physical Sciences Laboratory, Boulder, Colorado author Rosencrans, Matthew h NOAA/NWS/NCEP/CPC, College Park, Maryland author Kumar, Arun h NOAA/NWS/NCEP/CPC, College Park, Maryland author American Meteorological Society publisher documentDigital Monthly Weather Review 150(3) ISSN 0027-0644, ISSN 1520-0493, pp. 647-665 crossReference sciencePaper Hamill, T. M., Whitaker, J. S., Shlyaeva, A., Bates, G., Fredrick, S., Pegion, P., Sinsky, E., Zhu, Y., Tallapragada, V., Guan, H., Zhou, X., & Woollen, J. (2022). The Reanalysis for the Global Ensemble Forecast System, Version 12. Monthly Weather Review, 150(1), 59–79. https://doi.org/10.1175/mwr-d-21-0023.1 2022-01 publication International DOI Foundation (IDF) https://doi.org/10.1175/mwr-d-21-0023.1 https://doi.org/10.1175/mwr-d-21-0023.1 HTTPS https://doi.org/10.1175/mwr-d-21-0023.1 Journal article information Hamill, Thomas M. a NOAA/Physical Sciences Laboratory, Boulder, Colorado author Whitaker, Jeffrey S. a NOAA/Physical Sciences Laboratory, Boulder, Colorado author Shlyaeva, Anna b Joint Center for Satellite Data Assimilation, University Corporation for Atmospheric Research, Boulder, Colorado author Bates, Gary c Cooperative Institute for Research in the Environmental Sciences, University of Colorado Boulder, Boulder, Colorado author Fredrick, Sherrie c Cooperative Institute for Research in the Environmental Sciences, University of Colorado Boulder, Boulder, Colorado author Pegion, Philip c Cooperative Institute for Research in the Environmental Sciences, University of Colorado Boulder, Boulder, Colorado author Sinsky, Eric d I. M. Systems Group, Inc., College Park, Maryland author Zhu, Yuejian e NOAA/NWS/NCEP/Environmental Modeling Center, College Park, Maryland author Tallapragada, Vijay e NOAA/NWS/NCEP/Environmental Modeling Center, College Park, Maryland author Guan, Hong e NOAA/NWS/NCEP/Environmental Modeling Center, College Park, Maryland author Zhou, Xiaqiong d I. M. Systems Group, Inc., College Park, Maryland author Woollen, Jack d I. M. Systems Group, Inc., College Park, Maryland author American Meteorological Society publisher documentDigital Monthly Weather Review 150(1) ISSN 0027-0644, ISSN 1520-0493, pp. 59-79 crossReference sciencePaper Pegion, K., Kirtman, B. P., Becker, E., Collins, D. C., LaJoie, E., Burgman, R., Bell, R., DelSole, T., Min, D., Zhu, Y., Li, W., Sinsky, E., Guan, H., Gottschalck, J., Metzger, E. J., Barton, N. P., Achuthavarier, D., Marshak, J., Koster, R. D., … Kim, H. (2019). The Subseasonal Experiment (SubX): A Multimodel Subseasonal Prediction Experiment. Bulletin of the American Meteorological Society, 100(10), 2043–2060. https://doi.org/10.1175/bams-d-18-0270.1 2019-10 publication International DOI Foundation (IDF) https://doi.org/10.1175/bams-d-18-0270.1 https://doi.org/10.1175/bams-d-18-0270.1 HTTPS https://doi.org/10.1175/bams-d-18-0270.1 Journal article information Pegion, Kathy George Mason University, Fairfax, Virginia author Kirtman, Ben P. Rosenstiel School for Marine and Atmospheric Sciences, University of Miami, Miami, Florida author Becker, Emily Rosenstiel School for Marine and Atmospheric Sciences, University of Miami, Miami, Florida author Collins, Dan C. NOAA/NCEP/Climate Prediction Center, College Park, Maryland author LaJoie, Emerson NOAA/NCEP/Climate Prediction Center, and Innovim, Inc., College Park, Maryland author Burgman, Robert Florida International University, Miami, Florida author Bell, Ray Rosenstiel School for Marine and Atmospheric Sciences, University of Miami, Miami, Florida author DelSole, Timothy George Mason University, and Center for Ocean–Land–Atmosphere Studies, Fairfax, Virginia author Min, Dughong Rosenstiel School for Marine and Atmospheric Sciences, University of Miami, Miami, Florida author Zhu, Yuejian NOAA/NCEP/Environmental Modeling Center, College Park, Maryland author Li, Wei IMSG at NOAA/NCEP/Environmental Modeling Center, College Park, Maryland author Sinsky, Eric IMSG at NOAA/NCEP/Environmental Modeling Center, College Park, Maryland author Guan, Hong SRG at NOAA/NCEP/Environmental Modeling Center, College Park, Maryland author Gottschalck, Jon NOAA/NCEP/Climate Prediction Center, College Park, Maryland author Metzger, E. Joseph Oceanography Division, Naval Research Laboratory, Stennis Space Center, Mississippi author Barton, Neil P Marine Meteorology Division, Naval Research Laboratory, Monterey, California author Achuthavarier, Deepthi Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, and Universities Space Research Association, Columbia, Maryland author Marshak, Jelena Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, Maryland author Koster, Randal D. Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, Maryland author Lin, Hai Recherche en prévision numérique atmosphérique, Environment and Climate Change Canada, Dorval, Quebec, Canada author Gagnon, Normand Canadian Meteorological Centre, Environment and Climate Change Canada, Dorval, Quebec, Canada author Bell, Michael International Research Institute for Climate and Society, Columbia University, Palisades, New York author Tippett, Michael K. Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York author Robertson, Andrew W. International Research Institute for Climate and Society, Columbia University, Palisades, New York author Sun, Shan Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, and NOAA/OAR/ESRL/Global Systems Division, Boulder, Colorado author Benjamin, Stanley G. NOAA/OAR/ESRL/Global Systems Division, Boulder, Colorado author Green, Benjamin W. Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, and NOAA/OAR/ESRL/Global Systems Division, Boulder, Colorado author Bleck, Rainer Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, and NOAA/OAR/ESRL/Global Systems Division, Boulder, Colorado author Kim, Hyemi School of Marine and Atmospheric Sciences, Stony Brook University, State University of New York, Stony Brook, New York author American Meteorological Society publisher documentDigital Bulletin of the American Meteorological Society 100(10) ISSN 0003-0007, ISSN 1520-0477, pp. 2043-2060 crossReference sciencePaper eng; USA utf8 environment climatologyMeteorologyAtmosphere -90 40 20 90 2000-01-01 2019-12-31 NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact 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. Originator data format 2.792 https://doi.org/10.25921/be7v-1s13 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/259492 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/259492 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0208/0259492/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0259492 v1.1 was published. 2022-11-09T23:32:36Z NCEI Accession 0259492 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0259492/1.1 HTTPS NCEI Accession 0259492 v1.1 published 2022-11-09T23:32:36Z download model Parameter or Variable: North Atlantic Oscillation Index (calculated); Units: unitless; Observation Category: model output; Sampling Instrument: Forecast / Reanalysis asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian