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Federal
Solar Geophysical Data (SGD) Reports (1955-2009)
National Oceanic and Atmospheric Administration, Department of Commerce —
Solar-Geophysical Data (SGD) reports were a comprehensive compilation of many different kinds of observational data of the sun's activity and its effects on the... -
Federal
NOAA POES & MetOp Space Environment Monitor (SEM) Data
National Oceanic and Atmospheric Administration, Department of Commerce —
The Space Environment Monitor (SEM) instrument onboard the NOAA POES satellite series and MetOp satellite series measures the flux of energetic ions and electrons at...