# D'Arrigo et al. 2001 Pacific Decadal Oscillation 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.ncdc.noaa.gov/paleo/study/6268 # 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-6268.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/pdo-darrigo2001-noaa.txt # Data_Download_Description: NOAA Template File; Pacific Decadal Oscillation Reconstruction Data # # Original_Source_URL: # Original_Source_Description: # #------------------- # Contribution_Date # Date: 2005-02-01 #------------------- # File_Last_Modified_Date # Date: 2021-06-04 #------------------- # Title # Study_Name: D'Arrigo et al. 2001 Pacific Decadal Oscillation Reconstruction #------------------- # Investigators # Investigators: D'Arrigo, R.D.; Villalba, R.; Wiles, G. #------------------- # Description_Notes_and_Keywords # Description: D'Arrigo et al. 2001 Tree-ring based Pacific Decadal Oscillation Reconstruction.The reconstruction is based on tree-ring data from the PDO-sensitive regions of coastal Alaska and the Pacific Northwest (temperature sensitive sites) and subtropical North America (precipitation sensitive sites). Most of the tree ring data are available from the International Tree-Ring Data Bank: http://www.ncdc.noaa.gov/paleo/treering.html Precipitation-sensitive sites are gridpoint PDSI reconstructions of Cook et al. 1999: http://www.ncdc.noaa.gov/paleo/newpdsi.html Temperature Sensitive Tree-ring sites: Eyak Mt., AK 60 36' N 145 40' W Nichawak Mt., AK 60 15' N 143 58' W Exit Glacier, AK 60 12' N 149 35' W Water Supply, AK 60 07' N 149 28' W Ellsworth, AK 60 05' N 148 58' W Rock Glacier, AK 60 04' N 148 50' W Hemlock Knob, AK 59 29' N 139 08' W Verstovia, AK 57 03' N 135 16' W Barlow Pass, OR 45 00' N 121 00' W Two PDO index reconstruction series and 1900-1997 AD instrumental PDO are presented. The 1790-1979 AD series is based on all 11 tree ring predictors. The 1700-1979 AD series is based on 8 of the predictors which extend to AD 1700. #------------------- # Publication # Authors: D'Arrigo, R., R. Villalba, and G. Wiles # Journal_Name: Climate Dynamics # Published_Title: Tree-ring estimates of Pacific decadal climate variability. # Published_Date_or_Year: 2001-12-01 # Volume: 18 # Issue: 3-4 # Pages: 219-224 # Report_Number: # DOI: 10.1007/s003820100177 # Full_Citation: # Abstract: Decadal-scale oscillatory modes of atmosphere-ocean variability have recently been identified in instrumental studies of the Pacific sector. The regime shift around 1976 is one example of such a fluctuation, which has been shown to have significantly impacted climate and the environment along the coastline of the western N and S Americas. The length of meteorological data for the Pacific and western Americas critically limits analyses of such decadal-scale climate variability. Here we present reconstructions of the annual Pacific Decadal Oscillation (PDO) index based on western North American tree-ring records which account for up to 53% of the instrumental variance and extend as far back as AD 1700. The PDO reconstructions indicate that decadal-scale climatic shifts have occurred prior to the period of instrumental record. Evaluation of temperature and precipitation-sensitive tree-ring series from the northeast Pacific as well as these reconstructions reveals evidence for a shift towards less pronounced interdecadal variability after about the middle 1800s. Our analyses also suggest that sites from both the northeast Pacific coast as well as the subtropical Americas need to be included in proxy data sets used to reconstruct the PDO. #------------------- # Funding_Agency # Funding_Agency_Name: # Grant_Number: #------------------- # Site_Information # Site_Name: Pacific Decadal Oscillation # Location: North Pacific Ocean # Northernmost_Latitude: 60 # Southernmost_Latitude: 10 # Easternmost_Longitude: -110 # Westernmost_Longitude: 130 # Elevation_m: 0 #------------------- # Data_Collection # Collection_Name: DArrigo2001PDO # First_Year: 1700 # Last_Year: 1979 # Time_Unit: AD # 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 relationships in SKOS format. # # Variables format: shortname what,material,error,units,seasonality,data_type,detail,method, C(har) or N(umeric) data,additional information ## age age,,,year Common Era,,climate reconstructions;tree ring,,,N, ## pdo1700 Pacific Decadal Oscillation Index,ring width,,standard deviation unit,annual,climate reconstructions;tree ring,,principal component analysis;regression analysis,N,uses 8 chronologies; calibration data set: Mantua et al. 1997; principal components regression ## pdo1790 Pacific Decadal Oscillation Index,ring width,,standard deviation unit,annual,climate reconstructions;tree ring,,principal component analysis;regression analysis,N,uses 11 chronologies; calibration data set: Mantua et al. 1997; principal components regression ## pdoactual Pacific Decadal Oscillation Index,,,standard deviation unit,annual,instrumental,,,N, #------------------------------- # Data: # Missing_Values: NA age pdo1700 pdo1790 pdoactual 1700 0.2146 NA NA 1701 -0.1672 NA NA 1702 -0.4883 NA NA 1703 0.2607 NA NA 1704 -0.277 NA NA 1705 -0.0881 NA NA 1706 0.5387 NA NA 1707 -0.3202 NA NA 1708 -0.2541 NA NA 1709 -0.745 NA NA 1710 0.5914 NA NA 1711 0.3363 NA NA 1712 0.9336 NA NA 1713 0.5002 NA NA 1714 0.1069 NA NA 1715 -0.1303 NA NA 1716 0.0138 NA NA 1717 0.1495 NA NA 1718 0.769 NA NA 1719 0.8237 NA NA 1720 0.3046 NA NA 1721 0.6899 NA NA 1722 -0.1422 NA NA 1723 0.8376 NA NA 1724 -0.8493 NA NA 1725 -0.0375 NA NA 1726 -0.4278 NA NA 1727 -0.1475 NA NA 1728 -0.1632 NA NA 1729 -0.3941 NA NA 1730 -0.6755 NA NA 1731 -0.5048 NA NA 1732 -0.5657 NA NA 1733 -0.3386 NA NA 1734 0.2246 NA NA 1735 0.5735 NA NA 1736 0.2579 NA NA 1737 0.6714 NA NA 1738 0.1345 NA NA 1739 -0.9327 NA NA 1740 0.2925 NA NA 1741 -0.532 NA NA 1742 -1.3111 NA NA 1743 -0.9875 NA NA 1744 -1.1283 NA NA 1745 -0.6958 NA NA 1746 -0.0825 NA NA 1747 0.6762 NA NA 1748 -0.4642 NA NA 1749 -0.7148 NA NA 1750 -0.6263 NA NA 1751 -0.1207 NA NA 1752 -1.8356 NA NA 1753 -0.3575 NA NA 1754 -1.8575 NA NA 1755 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1849 -0.4623 -0.5563 NA 1850 0.6792 0.0889 NA 1851 0.2047 -0.0507 NA 1852 0.1928 -0.1269 NA 1853 0.4274 0.006 NA 1854 -0.5223 -0.9022 NA 1855 -0.3447 -0.5251 NA 1856 -0.073 -0.245 NA 1857 -0.5542 -0.9064 NA 1858 -0.0029 -0.1929 NA 1859 -0.8813 -1.1657 NA 1860 -0.5781 -0.7854 NA 1861 -0.6466 -0.2584 NA 1862 -1.4419 -1.4847 NA 1863 -0.7267 -1.0043 NA 1864 -0.5703 -0.6203 NA 1865 -0.8129 -0.6317 NA 1866 -0.6942 -0.6282 NA 1867 -0.9659 -0.6015 NA 1868 -0.3858 -0.1778 NA 1869 0.5139 0.3646 NA 1870 0.0055 -0.1151 NA 1871 -0.1822 -0.5845 NA 1872 -0.484 -0.6777 NA 1873 -0.0446 -0.1292 NA 1874 -0.1121 -0.0709 NA 1875 0.2379 -0.3024 NA 1876 -0.0783 -1.0285 NA 1877 0.0971 -0.6164 NA 1878 0.4098 0.0515 NA 1879 -0.4461 -0.3513 NA 1880 -0.8713 -0.9321 NA 1881 -0.5019 -0.1183 NA 1882 0.1816 -0.0735 NA 1883 0.7077 -0.1856 NA 1884 -0.3176 -0.4164 NA 1885 0.5021 0.46 NA 1886 -0.6465 -0.6663 NA 1887 -0.8785 -1.1488 NA 1888 0.0874 0.0851 NA 1889 0.3006 0.1658 NA 1890 -0.8726 -0.9201 NA 1891 -0.0334 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0.74 1932 0.23 -0.3658 -0.02 1933 0.0865 0.1626 -0.68 1934 0.4123 0.4425 1.18 1935 0.3421 0.6397 0.8 1936 1.1218 1.2125 1.73 1937 0.0014 -0.0812 0.32 1938 0.2125 0.1608 0.16 1939 -0.3823 -0.1574 0.06 1940 0.5073 0.4248 1.77 1941 1.0316 1.173 1.99 1942 0.5889 0.3722 0.47 1943 0.6074 0.3558 0.11 1944 0.1362 0.2432 -0.13 1945 -0.2986 -0.1844 -0.19 1946 -0.7212 0.1071 -0.58 1947 0.0036 0.1732 0.5 1948 -0.6723 -0.4418 -0.87 1949 -0.3165 -0.4081 -1.23 1950 -0.919 -0.7187 -1.81 1951 -0.1312 -0.2331 -0.77 1952 -0.265 -0.343 -0.87 1953 -0.5143 -0.2779 -0.16 1954 -1.0872 -0.918 -0.29 1955 -1.2527 -1.2802 -1.95 1956 -0.5514 -0.7657 -1.8 1957 0.0024 -0.1895 0.23 1958 0.3191 -0.086 0.64 1959 -0.2864 -0.4743 -0.03 1960 -0.2481 -0.4471 0.06 1961 0.0942 -0.0427 -0.82 1962 -0.6851 -0.506 -1.16 1963 -0.0634 0.0827 -0.69 1964 -0.7925 -0.4915 -0.77 1965 -0.4461 -0.1385 -0.31 1966 -0.327 -0.2561 -0.46 1967 -0.1446 -0.5661 -0.73 1968 0.082 -0.4269 -0.4 1969 -0.1571 -0.5642 -0.1 1970 -0.3328 -0.7283 -0.4 1971 -0.8897 -1.4218 -1.29 1972 0.1462 -0.7258 -0.92 1973 -0.0709 -0.4542 -0.8 1974 -0.4046 -0.799 -0.34 1975 -0.357 -0.2871 -1.1 1976 -0.2611 -0.3117 0.01 1977 0.1264 0.2734 0.23 1978 -0.7105 -0.4575 0.24 1979 0.2328 0.7493 0.33 1980 NA NA 0.6 1981 NA NA 0.92 1982 NA NA -0.23 1983 NA NA 1.28 1984 NA NA 0.48 1985 NA NA 0.09 1986 NA NA 0.85 1987 NA NA 1.43 1988 NA NA 0.18 1989 NA NA -0.51 1990 NA NA -0.67 1991 NA NA -0.75 1992 NA NA 0.57 1993 NA NA 1.04 1994 NA NA -0.46 1995 NA NA 0.31 1996 NA NA 0.31 1997 NA NA 1.12