Authors: Viereck, R., L. Puga, D. McMullin, D. Judge,
M. Weber, W.K. Tobiska
Reference: Geophys. Res. Lett., 28, 1343-1346, 2001.
Abstract:
The paper shows that the Mg II core-to-wing ratio is a better proxy for
Solar Extreme Ultraviolet (EUV) radiation, between 25 and 35 nm than is
the F10.7 index. The He II 30.4 nm solar emission, by itself, is an
important source of energy for the upper atmosphere. We will compare the
NOAA Mg II Index and the F10.7 Index to the He II 30.4 data taken with
the CELIAS/Solar EUV Monitor (SEM) on the Solar and Heliospheric
Observatory (SoHO).