1944 2006 1954 1996 .00 AS BASE VALUE YEARLY TSI (W/M2) IN ABS SCALE 2006 1365.7000 2005 1365.9000 2004 1366.1000 2003 1366.3000 2002 1366.7000 2001 1366.8000 2000 1366.7000 1999 1366.7000 1998 1366.4000 1997 1365.9000 1996 1365.7000 1995 1365.7000 1994 1365.8000 1993 1366.0000 1992 1366.3000 1991 1366.5000 1990 1366.6000 1989 1366.5000 1988 1366.1000 1987 1365.8000 1986 1365.7000 1985 1365.7000 1984 1365.9000 1983 1366.3000 1982 1366.5000 1981 1366.8000 1980 1366.7000 1979 1366.6000 1978 1366.4000 1977 1366.0000 1976 1365.7000 1975 1365.8000 1974 1366.0000 1973 1366.1000 1972 1366.3000 1971 1366.4000 1970 1366.6000 1969 1366.7000 1968 1366.4000 1967 1366.2000 1966 1366.0000 1965 1365.7000 1964 1365.7000 1963 1365.9000 1962 1366.1000 1961 1366.3000 1960 1366.5000 1959 1366.8000 1958 1367.0000 1957 1366.7000 1956 1366.4000 1955 1366.1000 1954 1365.7000 1953 1365.8000 1952 1366.1000 1951 1366.4000 1950 1366.7000 1949 1366.9000 1948 1367.0000 1947 1366.6000 1946 1366.2000 1945 1365.7000 1944 1365.7000 ******************************************************************* Data arrangement: 1st line: yr_start, yr_end, yr_cyc1, yr_cyc2, base_value (4i5,f8.2): yr_start, yr_end : starting and ending year of the table yr_cyc1, yr_cyc2 : marks for 1st and last cycles used for data beyond table range base_value : base value to be added 2nd line and so on: year, solcon in w/m2 (i4,f10.4) Total Solar Irradiance (W/m*m) in absolute scale (annual mean). The original table (minus 1360) was gestimated by Van den Dool, Feb 3, 2006. "Values for 1979-1999 were read from a satelliet graph. Using a maximum of 6.8 and a minimum of 5.7 during the last two cycles I anchored the maxes and mins for 1940s thru 1970's using monthly sunspots, increasing the strong maxes in the forties and fifties to 7.0, and reducing the weak max in the seventies to 6.7. Then interpolated by eye in between. 2006 is a minimum in sunspots and radiation. Values after 2000-2005 also interpolated by eye. A formal procedure would not be much better. Only the approximate 11 year cycle is dealt with here. If a continous value is sought, just do a harmonic analysis to interpolate to month, day, whatever. The overall mean can be changed. Just keep the ups and downs. I did not include the secular change which was estimated to be more than 1W/m*m from 1947 to present by Lean at one time, but apparently she is revising this down."