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NOAA WDCA Magnetic Indices and Sunspots, 1932-1981Jun
This dataset contains basic solar data received from World Data Center A and includes sunspot indices and sunspot number. Data are available from January 1932 to June 1981.- dataset ASCII
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U.S.C.G.S. Geomagnetic Data for 3 stations, 1947-1969
Later data are at NCAR, on a CDROM from NGDC.- dataset Binary
