Labels:text | screenshot | circle | graphic design | graphics | colorfulness OCR: October 1979 October 1980 October 1981 October 1982 October 1983 October 1984 October 1985 October 1986 October 1987 October 1945 October 1989 October 1990 Monthly Mean Nimbus-7 TOMS Total Ozor Dobson Units NASA/CSPC
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