Solar EUV models and photoelectron transport at Earth: challenges

Details Solar EUV models and photoelectron transport at Earth: challenges Solar EUV models and photoelectron transport at Earth: challenges

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsa31a..01r&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #SA31A-01

Physics

0358 Thermosphere: Energy Deposition, 2423 Ionization Mechanisms, 2479 Solar Radiation And Cosmic Ray Effects

Scientific paper

This paper presents an overview of models of solar EUV and soft X-ray fluxes that are responsible for producing the ions and photoelectrons in the Earth's ionosphere. In particular, solar fluxes from models based on earlier measurements from the Atmosphere Explorer satellites are compared with recent measurements of the solar EUV and X-ray fluxes from the TIMED satellite. Model photoelectron fluxes are also compared with measurements from the earlier Atmosphere Explorer and recent FAST satellites. This paper also discusses the impact on the models from uncertainties in our knowledge of the photoionization and electron impact cross sections that are required for accurate modeling of the density and temperature of the ionosphere.

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