# Cook et al. 2002 Well-Verified Multiproxy Winter NAO Reconstruction #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), # and date accessed when using these downloaded data. If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/6254 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-recon-6254.json # Study_Level_JSON_Description: JSON metadata of this file's parent study, which includes all study metadata. # # Data_Type: Climate Reconstructions # # Dataset_DOI: # # Science_Keywords: Atmospheric and Oceanic Circulation Patterns Reconstruction #------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/reconstructions/nao_cook2002-noaa.txt # Data_Download_Description: NOAA Template File; NAO Reconstruction Data # # Original_Source_URL: # Original_Source_Description: # #------------------- # Contribution_Date # Date: 2002-09-01 #------------------- # File_Last_Modified_Date # Date: 2022-03-31 #------------------- # Title # Study_Name: Cook et al. 2002 Well-Verified Multiproxy Winter NAO Reconstruction #------------------- # Investigators # Investigators: Cook, E.R.(https://orcid.org/0000-0001-7478-4176); D'Arrigo, R.D.; Mann, M.E. #------------------- # Description_Notes_and_Keywords # Description: #------------------- # Publication # Authors: Cook, E.R., D'Arrigo, R.D., and Mann, M.E. # Journal_Name: Journal of Climate # Published_Title: A Well-Verified, Multiproxy Reconstruction of the Winter North Atlantic Oscillation Index since A.D. 1400 # Published_Date_or_Year: 2002-07-01 # Volume: 15 # Issue: 13 # Pages: 1754-1764 # Report_Number: # DOI: 10.1175/1520-0442(2002)015<1754:AWVMRO>2.0.CO;2 # Full_Citation: # Abstract: A new, well-verified, multiproxy reconstruction of the winter North Atlantic Oscillation (NAO) index is described that can be used to examine the variability of the NAO prior to twentieth century greenhouse forcing. It covers the period a.d. 1400–1979 and successfully verifies against independent estimates of the winter NAO index from European instrumental and noninstrumental data as far back as 1500. The best validation occurs at interannual timescales and the weakest at multidecadal periods. This result is a significant improvement over previous proxy-based estimates, which often failed to verify prior to 1850, and is related to the use of an extended reconstruction model calibration period that reduced an apparent bias in selected proxies associated with the impact of anomalous twentieth century winter NAO variability on climate teleconnections over North Atlantic sector land areas. Although twentieth century NAO variability is somewhat unusual, comparable periods of persistent positive-phase NAO are reconstructed to have occurred in the past, especially before 1650. #------------------- # Funding_Agency # Funding_Agency_Name: # Grant_Number: #------------------- # Site_Information # Site_Name: North Atlantic Oscillation # Location: North Atlantic Ocean # Northernmost_Latitude: 65 # Southernmost_Latitude: 38 # Easternmost_Longitude: -10 # Westernmost_Longitude: -50 # Elevation_m: #------------------- # Data_Collection # Collection_Name: Cook2002NAO # First_Year: 1400 # Last_Year: 2001 # Time_Unit: CE # Core_Length_m: # Parameter_Keywords: reconstructions # Notes: #------------------- # Chronology_Information # Chronology: #------------------- # Variables # # PaST_Thesaurus_Download_Resource: https://www.ncdc.noaa.gov/paleo/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and 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