# Northern Hemisphere Average Annual Temperature Reconstruction # # ftp://ftp.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ammann2007/ammann2007.txt # Temperature Anomaly # # # degrees C # Annual # 1902 AD - 1980 AD # 1000 AD # 1980 AD # Ammann, C.M. and E.R. Wahl. # Ammann, C.M. and E.R. Wahl. 2007. The importance of the geophysical context in statistical evaluations of climate reconstruction procedures. Climatic Change 85:71-88. DOI: 10.1007/s10584-007-9276-x. See also companion article by Wahl and Ammann: Climatic Change, 85:33-69 (2007) DOI: 10.1007/s10584-006-9105-7 # 80.000 N # 0.000 N # 180.000 E # 180.000 W # # Uses multiple proxy types, input into inverse regression-truncated EOF climate field reconstruction spanning entire globe at incomplete 5x5 deg grid. Only N. Hemisphere average is reported here. # This reconstruction is based on the Wahl-Ammann emulation of the Mann, Bradley, Hughes (1998/9) reconstruction algorithm and MBH original data. It contains corrections for the # centering convention used in N. American tree-ring principal component summaries (centered over full length), as well as elimination of the Gaspe (Canada) tree ring proxy series during 1400-1449. # March 2009, v 1.0.0 # # YearAD Anomaly 1980 0.11061 1979 0.2643 1978 0.13678 1977 0.21332 1976 0.023316 1975 0.016375 1974 -0.04436 1973 0.10649 1972 0.098746 1971 -0.074576 1970 0.16751 1969 0.15973 1968 0.19096 1967 0.16964 1966 0.32002 1965 0.095334 1964 0.098557 1963 0.23496 1962 0.14165 1961 0.17037 1960 0.24954 1959 0.1732 1958 0.3068 1957 0.19867 1956 0.058935 1955 0.19445 1954 0.18241 1953 0.05567 1952 0.11223 1951 0.055352 1950 0.02542 1949 -0.088909 1948 0.070455 1947 0.094692 1946 0.090026 1945 0.036391 1944 0.23171 1943 0.1237 1942 0.1054 1941 0.15477 1940 0.00726 1939 0.14146 1938 0.1094 1937 0.21375 1936 0.13742 1935 -0.00124 1934 0.011471 1933 -0.21688 1932 0.000398 1931 -0.00103 1930 0.134 1929 -0.25547 1928 0.010065 1927 -0.045283 1926 0.047997 1925 -0.14212 1924 -0.14558 1923 -0.097826 1922 -0.27953 1921 -0.23692 1920 -0.14719 1919 -0.054511 1918 -0.16511 1917 -0.28552 1916 -0.18387 1915 -0.091978 1914 -0.15919 1913 -0.21473 1912 -0.34517 1911 -0.25983 1910 -0.22644 1909 -0.32533 1908 -0.32604 1907 -0.40391 1906 -0.1234 1905 -0.15254 1904 -0.37312 1903 -0.2301 1902 -0.35403 1901 -0.15859 1900 -0.19865 1899 -0.39183 1898 -0.20739 1897 -0.008745 1896 -0.006609 1895 -0.18429 1894 -0.131 1893 -0.29449 1892 -0.25974 1891 -0.13598 1890 -0.21381 1889 -0.098935 1888 -0.097873 1887 -0.22282 1886 -0.09459 1885 -0.14634 1884 -0.24217 1883 -0.25216 1882 -0.15325 1881 -0.15675 1880 -0.18165 1879 -0.20786 1878 -0.051986 1877 -0.013584 1876 -0.21051 1875 -0.18476 1874 -0.17251 1873 -0.2318 1872 -0.1917 1871 -0.26491 1870 -0.34604 1869 -0.2276 1868 -0.18401 1867 -0.22901 1866 -0.17446 1865 -0.13448 1864 -0.31607 1863 -0.10978 1862 -0.17529 1861 -0.21113 1860 -0.17219 1859 -0.10052 1858 -0.2346 1857 -0.1549 1856 -0.11238 1855 -0.12509 1854 -0.24886 1853 -0.16657 1852 -0.10942 1851 -0.17486 1850 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