1850 NaN 1851 NaN 1852 NaN 1853 NaN 1854 NaN 1855 NaN 1856 NaN 1857 NaN 1858 NaN 1859 NaN 1860 NaN 1861 NaN 1862 NaN 1863 NaN 1864 NaN 1865 NaN 1866 NaN 1867 NaN 1868 NaN 1869 NaN 1870 NaN 1871 NaN 1872 NaN 1873 NaN 1874 NaN 1875 NaN 1876 NaN 1877 NaN 1878 NaN 1879 NaN 1880 NaN 1881 NaN 1882 NaN 1883 NaN 1884 NaN 1885 NaN 1886 NaN 1887 NaN 1888 NaN 1889 NaN 1890 NaN 1891 -0.2216 1892 -0.2836 1893 -0.3040 1894 -0.3196 1895 -0.2441 1896 -0.1312 1897 -0.1435 1898 -0.3111 1899 -0.2363 1900 -0.1540 1901 -0.2636 1902 -0.3167 1903 -0.3982 1904 -0.4526 1905 -0.3272 1906 -0.3006 1907 -0.3596 1908 -0.4639 1909 -0.4827 1910 -0.4764 1911 -0.4778 1912 -0.3713 1913 -0.4057 1914 -0.2790 1915 -0.1842 1916 -0.3057 1917 -0.3350 1918 -0.2042 1919 -0.2613 1920 -0.2284 1921 -0.2369 1922 -0.3008 1923 -0.2836 1924 -0.2751 1925 -0.2231 1926 -0.1394 1927 -0.2131 1928 -0.2301 1929 -0.2903 1930 -0.1491 1931 -0.1301 1932 -0.1686 1933 -0.2397 1934 -0.1940 1935 -0.2207 1936 -0.2384 1937 -0.1396 1938 -0.1877 1939 -0.1695 1940 -0.0682 1941 -0.0026 1942 -0.0090 1943 -0.0265 1944 0.0350 1945 -0.0001 1946 -0.1799 1947 -0.2024 1948 -0.2107 1949 -0.2102 1950 -0.1945 1951 -0.1136 1952 -0.0482 1953 -0.0434 1954 -0.1785 1955 -0.2145 1956 -0.1875 1957 -0.0091 1958 0.0062 1959 -0.0439 1960 -0.0637 1961 -0.0046 1962 0.0056 1963 0.0221 1964 -0.1680 1965 -0.1455 1966 -0.0794 1967 -0.1024 1968 -0.0853 1969 0.0415 1970 -0.0367 1971 -0.1496 1972 0.0242 1973 0.0249 1974 -0.1321 1975 -0.1519 1976 -0.1456 1977 0.0049 1978 -0.0304 1979 0.0899 1980 0.0988 1981 0.0631 1982 0.0558 1983 0.1280 1984 0.0396 1985 0.0075 1986 0.0467 1987 0.1801 1988 0.1284 1989 0.0916 1990 0.1779 1991 0.1597 1992 0.0823 1993 0.0980 1994 0.1241 1995 0.1693 1996 0.1282 1997 0.2693 1998 0.3339 1999 0.1441 2000 0.1785 2001 0.2711 2002 0.2909 2003 0.2899 2004 0.2676 2005 0.2973 2006 0.2951 2007 0.2411 2008 NaN 2009 NaN Sea-surface temperature anomalies relative to 1961-1990: COBE (Ishii et al. 2005, green), Ishii, M., A. Shouji, S. Sugimoto, T. Matsumoto 2005: Objective analysis of SST and marine meteorological variables for the 20th Century using ICOADS and the Kobe Collection. Int. J. Climatol., 25, 865879. Data publically available from: http://ghrsst.nodc.noaa.gov/intercomp.html Original data source contact: Masayoshi Ishii