------------------------------------ Tropospheric Aerosol Forcing F(W/m2) ------------------------------------ Year IPCC inferred Matrix OMA ------------------------------------ 1850 0.000 0.000 0.000 0.000 1851 0.010 -0.005 -0.007 -0.018 1852 0.020 -0.010 -0.016 -0.001 1853 0.010 -0.015 -0.092 -0.054 1854 -0.010 -0.020 -0.160 -0.156 1855 0.000 -0.025 -0.133 -0.157 1856 0.000 -0.030 -0.171 -0.235 1857 -0.010 -0.035 -0.203 -0.234 1858 -0.010 -0.040 -0.219 -0.237 1859 -0.010 -0.045 -0.189 -0.193 1860 -0.020 -0.050 -0.193 -0.174 1861 -0.020 -0.055 -0.086 -0.070 1862 -0.020 -0.060 0.050 0.137 1863 -0.010 -0.065 0.069 0.119 1864 -0.020 -0.070 0.025 0.046 1865 -0.030 -0.075 0.021 0.013 1866 -0.030 -0.080 -0.027 -0.038 1867 -0.040 -0.085 -0.049 -0.048 1868 -0.050 -0.090 -0.101 -0.048 1869 -0.050 -0.095 -0.061 -0.120 1870 -0.060 -0.100 -0.174 -0.229 1871 -0.050 -0.105 -0.143 -0.219 1872 -0.050 -0.110 -0.163 -0.265 1873 -0.070 -0.115 -0.145 -0.162 1874 -0.070 -0.120 -0.207 -0.247 1875 -0.070 -0.125 -0.211 -0.231 1876 -0.080 -0.130 -0.287 -0.273 1877 -0.080 -0.135 -0.263 -0.236 1878 -0.090 -0.140 -0.260 -0.299 1879 -0.100 -0.145 -0.302 -0.388 1880 -0.110 -0.150 -0.255 -0.212 1881 -0.110 -0.157 -0.226 -0.212 1882 -0.120 -0.164 -0.342 -0.238 1883 -0.110 -0.169 -0.241 -0.133 1884 -0.120 -0.176 0.351 0.427 1885 -0.130 -0.183 0.082 0.167 1886 -0.130 -0.190 -0.007 0.066 1887 -0.140 -0.195 0.008 0.066 1888 -0.160 -0.201 0.020 0.050 1889 -0.160 -0.209 0.023 0.042 1890 -0.170 -0.214 -0.050 -0.017 1891 -0.170 -0.221 -0.058 -0.001 1892 -0.170 -0.229 -0.144 -0.126 1893 -0.170 -0.234 -0.160 -0.152 1894 -0.190 -0.240 -0.193 -0.128 1895 -0.200 -0.247 -0.245 -0.204 1896 -0.200 -0.254 -0.248 -0.223 1897 -0.210 -0.261 -0.217 -0.348 1898 -0.230 -0.266 -0.306 -0.379 1899 -0.250 -0.273 -0.366 -0.381 1900 -0.270 -0.280 -0.344 -0.348 1901 -0.270 -0.287 -0.370 -0.400 1902 -0.280 -0.295 -0.340 -0.242 1903 -0.300 -0.302 -0.082 0.013 1904 -0.320 -0.309 -0.131 -0.064 1905 -0.340 -0.316 -0.066 0.030 1906 -0.360 -0.324 -0.137 -0.140 1907 -0.400 -0.332 -0.232 -0.170 1908 -0.390 -0.339 -0.229 -0.192 1909 -0.400 -0.346 -0.340 -0.271 1910 -0.430 -0.354 -0.355 -0.288 1911 -0.420 -0.361 -0.317 -0.276 1912 -0.430 -0.368 -0.175 -0.147 1913 -0.450 -0.376 -0.299 -0.185 1914 -0.430 -0.384 -0.197 -0.236 1915 -0.410 -0.391 -0.261 -0.232 1916 -0.440 -0.399 -0.318 -0.340 1917 -0.470 -0.407 -0.279 -0.256 1918 -0.470 -0.414 -0.333 -0.254 1919 -0.410 -0.421 -0.293 -0.311 1920 -0.450 -0.429 -0.340 -0.303 1921 -0.370 -0.437 -0.298 -0.310 1922 -0.380 -0.444 -0.297 -0.326 1923 -0.440 -0.451 -0.350 -0.419 1924 -0.420 -0.459 -0.451 -0.523 1925 -0.420 -0.466 -0.460 -0.461 1926 -0.440 -0.474 -0.396 -0.444 1927 -0.470 -0.481 -0.464 -0.452 1928 -0.470 -0.490 -0.435 -0.412 1929 -0.510 -0.498 -0.409 -0.454 1930 -0.490 -0.506 -0.453 -0.450 1931 -0.420 -0.513 -0.427 -0.425 1932 -0.380 -0.521 -0.264 -0.352 1933 -0.390 -0.530 -0.435 -0.390 1934 -0.450 -0.539 -0.417 -0.445 1935 -0.470 -0.547 -0.500 -0.487 1936 -0.520 -0.553 -0.495 -0.492 1937 -0.550 -0.562 -0.498 -0.445 1938 -0.500 -0.570 -0.473 -0.384 1939 -0.550 -0.578 -0.530 -0.458 1940 -0.590 -0.586 -0.544 -0.506 1941 -0.610 -0.595 -0.563 -0.560 1942 -0.630 -0.602 -0.629 -0.577 1943 -0.630 -0.611 -0.661 -0.566 1944 -0.620 -0.618 -0.637 -0.600 1945 -0.540 -0.626 -0.642 -0.543 1946 -0.530 -0.635 -0.623 -0.518 1947 -0.580 -0.642 -0.582 -0.493 1948 -0.610 -0.650 -0.562 -0.499 1949 -0.570 -0.659 -0.552 -0.524 1950 -0.630 -0.666 -0.644 -0.613 1951 -0.630 -0.685 -0.732 -0.562 1952 -0.650 -0.702 -0.731 -0.693 1953 -0.680 -0.722 -0.750 -0.682 1954 -0.690 -0.739 -0.772 -0.741 1955 -0.740 -0.756 -0.785 -0.735 1956 -0.800 -0.775 -0.877 -0.795 1957 -0.840 -0.793 -0.814 -0.739 1958 -0.830 -0.811 -0.717 -0.736 1959 -0.850 -0.830 -0.846 -0.780 1960 -0.900 -0.848 -0.923 -0.856 1961 -0.940 -0.864 -1.083 -0.934 1962 -0.940 -0.880 -1.075 -1.004 1963 -1.010 -0.896 -0.868 -0.700 1964 -1.010 -0.912 -0.868 -0.744 1965 -1.040 -0.928 -0.886 -0.697 1966 -1.070 -0.945 -0.953 -0.897 1967 -1.090 -0.960 -0.945 -0.935 1968 -1.130 -0.976 -0.958 -0.841 1969 -1.150 -0.992 -0.976 -0.965 1970 -1.220 -1.009 -1.133 -1.083 1971 -1.230 -1.031 -1.119 -1.072 1972 -1.300 -1.053 -1.157 -1.090 1973 -1.310 -1.074 -1.219 -1.248 1974 -1.290 -1.097 -1.216 -1.165 1975 -1.270 -1.119 -1.137 -1.152 1976 -1.330 -1.141 -1.321 -1.297 1977 -1.340 -1.163 -1.364 -1.365 1978 -1.350 -1.184 -1.293 -1.297 1979 -1.370 -1.207 -1.293 -1.290 1980 -1.360 -1.229 -1.304 -1.314 1981 -1.320 -1.241 -1.272 -1.314 1982 -1.360 -1.253 -1.207 -1.287 1983 -1.280 -1.265 -1.029 -1.085 1984 -1.300 -1.277 -1.281 -1.293 1985 -1.310 -1.289 -1.384 -1.426 1986 -1.310 -1.302 -1.424 -1.475 1987 -1.350 -1.314 -1.438 -1.455 1988 -1.350 -1.325 -1.496 -1.718 1989 -1.330 -1.337 -1.559 -1.670 1990 -1.350 -1.349 -1.601 -1.571 1991 -1.440 -1.377 -1.380 -1.460 1992 -1.280 -1.403 -1.010 -0.947 1993 -1.290 -1.429 -1.333 -1.339 1994 -1.340 -1.453 -1.516 -1.576 1995 -1.260 -1.477 -1.556 -1.755 1996 -1.220 -1.504 -1.574 -1.754 1997 -1.380 -1.531 -1.525 -1.663 1998 -1.340 -1.557 -1.478 -1.835 1999 -1.180 -1.582 -1.518 -1.783 2000 -1.140 -1.608 -1.480 -1.753 2001 -1.140 -1.626 -1.606 -1.815 2002 -1.230 -1.640 -1.581 -1.834 2003 -1.280 -1.656 -1.547 -1.911 2004 -1.280 -1.672 -1.564 -1.926 2005 -1.320 -1.689 -1.628 -2.009 2006 -1.360 -1.705 -1.571 -1.974 2007 -1.310 -1.724 -1.532 -1.969 2008 -1.260 -1.743 -1.457 -1.968 2009 -1.190 -1.762 -1.474 -1.951 2010 -1.190 -1.782 -1.437 -2.033 2011 -1.170 -1.757 -1.412 -1.919 2012 -1.190 -1.734 -1.447 -2.024 2013 -1.110 -1.710 -1.331 -1.860 2014 -1.110 -1.687 -1.321 -1.855 2015 -1.040 -1.664 2016 -1.010 -1.640 2017 -0.980 -1.617 2018 -0.990 -1.594 2019 -0.980 -1.571 (linear) 2050 -0.850 ------------------------------------