POLAR UVI image with NOAA-TIROS,
May 19, 1996
A calibrated image from POLAR UVI has been seperated into dayglow and
auroral components. The auroral contribution was then interpreted in
terms of energy flux of the precipitating electrons. Shown is this
energy flux mapped to a geomagnetic (apex) coordinate system,
superimposed with in situ energy fluxes from electron spectra
obtained by the NOAA-TIROS satellites above the aurora (altitude 870
km). Data from a 60 second interval of the satellite track,
bracketing the image acquisition time is shown. The light blue lines
show geographic coordinates.