--------------------- Solar forcing (W/m2) --------------------- Year F 1750 0.0000 1751 -0.0265 1752 -0.0655 1753 -0.0818 1754 -0.1240 1755 -0.1416 1756 -0.1397 1757 -0.1267 1758 -0.0809 1759 -0.0682 1760 -0.0452 1761 -0.0294 1762 -0.0350 1763 -0.0550 1764 -0.0651 1765 -0.0884 1766 -0.0912 1767 -0.0694 1768 -0.0215 1769 0.0144 1770 0.0504 1771 0.0107 1772 -0.0208 1773 -0.0737 1774 -0.0852 1775 -0.0983 1776 -0.0668 1777 -0.0123 1778 0.1103 1779 0.1322 1780 0.0974 1781 0.0453 1782 -0.0081 1783 -0.0445 1784 -0.0705 1785 -0.0620 1786 -0.0256 1787 0.0411 1788 0.0907 1789 0.0697 1790 0.0603 1791 0.0122 1792 -0.0154 1793 -0.0397 1794 -0.0736 1795 -0.0965 1796 -0.1261 1797 -0.1514 1798 -0.1658 1799 -0.1621 1800 -0.1602 1801 -0.1319 1802 -0.1037 1803 -0.0992 1804 -0.0950 1805 -0.0842 1806 -0.1020 1807 -0.1220 1808 -0.1417 1809 -0.1421 1810 -0.1531 1811 -0.1522 1812 -0.1479 1813 -0.1402 1814 -0.1299 1815 -0.1216 1816 -0.0869 1817 -0.0900 1818 -0.1062 1819 -0.1242 1820 -0.1323 1821 -0.1584 1822 -0.1689 1823 -0.1785 1824 -0.1659 1825 -0.1511 1826 -0.1281 1827 -0.0849 1828 -0.0638 1829 -0.0518 1830 -0.0488 1831 -0.0424 1832 -0.0626 1833 -0.0792 1834 -0.0731 1835 -0.0379 1836 0.0372 1837 0.0954 1838 0.0854 1839 0.0319 1840 0.0142 1841 -0.0342 1842 -0.0715 1843 -0.0814 1844 -0.0775 1845 -0.0458 1846 -0.0100 1847 0.0025 1848 0.0712 1849 0.0786 1850 0.0412 1851 0.0067 1852 -0.0083 1853 -0.0303 1854 -0.0643 1855 -0.0854 1856 -0.1029 1857 -0.0901 1858 -0.0479 1859 0.0022 1860 0.0295 1861 0.0278 1862 0.0053 1863 -0.0203 1864 -0.0294 1865 -0.0324 1866 -0.0536 1867 -0.0761 1868 -0.0548 1869 0.0002 1870 0.0375 1871 0.0889 1872 0.0465 1873 0.0295 1874 -0.0220 1875 -0.0804 1876 -0.1198 1877 -0.1305 1878 -0.1502 1879 -0.1526 1880 -0.1229 1881 -0.0651 1882 -0.0545 1883 -0.0620 1884 -0.0247 1885 -0.0434 1886 -0.0714 1887 -0.1063 1888 -0.1146 1889 -0.1205 1890 -0.1225 1891 -0.1017 1892 -0.0518 1893 -0.0209 1894 0.0009 1895 -0.0225 1896 -0.0415 1897 -0.0922 1898 -0.1004 1899 -0.1137 1900 -0.1288 1901 -0.1445 1902 -0.1458 1903 -0.1299 1904 -0.0789 1905 -0.0813 1906 -0.0387 1907 -0.0593 1908 -0.0547 1909 -0.0778 1910 -0.0957 1911 -0.1316 1912 -0.1405 1913 -0.1320 1914 -0.1190 1915 -0.0645 1916 -0.0105 1917 0.0184 1918 0.0544 1919 -0.0016 1920 -0.0604 1921 -0.1004 1922 -0.1337 1923 -0.1518 1924 -0.1506 1925 -0.1338 1926 -0.0745 1927 -0.0278 1928 -0.0392 1929 -0.0639 1930 -0.0489 1931 -0.0893 1932 -0.1081 1933 -0.1102 1934 -0.1051 1935 -0.0855 1936 -0.0048 1937 0.0441 1938 0.0365 1939 0.0288 1940 -0.0114 1941 -0.0384 1942 -0.0674 1943 -0.0980 1944 -0.0975 1945 -0.0559 1946 -0.0317 1947 0.0446 1948 0.0802 1949 0.0465 1950 0.0263 1951 -0.0476 1952 -0.0617 1953 -0.0770 1954 -0.0846 1955 -0.0617 1956 0.0052 1957 0.1108 1958 0.1571 1959 0.1037 1960 0.0806 1961 0.0200 1962 -0.0490 1963 -0.0790 1964 -0.1028 1965 -0.1111 1966 -0.0931 1967 -0.0573 1968 -0.0052 1969 0.0110 1970 -0.0093 1971 -0.0395 1972 -0.0473 1973 -0.0698 1974 -0.0850 1975 -0.0890 1976 -0.0912 1977 -0.0890 1978 -0.0256 1979 0.0271 1980 0.0558 1981 0.0391 1982 0.0021 1983 -0.0296 1984 -0.0709 1985 -0.0975 1986 -0.1078 1987 -0.0842 1988 -0.0235 1989 0.0322 1990 0.0436 1991 0.0273 1992 -0.0096 1993 -0.0599 1994 -0.0875 1995 -0.1056 1996 -0.1140 1997 -0.0951 1998 -0.0419 1999 0.0013 2000 0.0307 2001 0.0526 2002 0.0198 2003 -0.0408 2004 -0.0843 2005 -0.1075 2006 -0.1254 2007 -0.1407 2008 -0.1460 2009 -0.1364 2010 -0.1036 2011 -0.0600 2012 -0.0279 2013 -0.0095 2014 0.0149 2015 -0.0055 2016 -0.0603 2017 -0.1051 2018 -0.1213 2019 -0.1172 2020 -0.1005 2021 -0.0549 2022 0.0182 2023 0.0707 Data sources 1750-1976: "Historical TSI Reconstruction" from Greg Kopp's TSI Page https://spot.colorado.edu/~koppg/TSI/ 1977-2023; 731-day running mean data shown in https://www1.columbia.edu/~mhs119/Solar/SolarIrrad+Sunspots.pdf is used to get annual means. Matched for 1977-1986, normalized to 0 in 1750, and then multiplied by 0.175 to convert from irradiance to forcing.