Search results with tag "Ngdc"

NOAA/NESDIS/NGDC/STP, Boulder-Sunspot Number Data …

number of sunspot groups and s is the total number of distinct spots. The scale factor K (usually less than unity) depends on the observer and is intended to effect the …

  Number, Noaa, Neisd, Sunspots, Sunspot number, Noaa nesdis ngdc stp, Ngdc