The ionosphere as a focusing lens - A case study involving simultaneous type III solar radio storm measurements from the ISIS 1 and 2 and ISEE 3 satellites

Journal Article · Fri Jun 01 00:00:00 EDT 1990 · Radio Science; (USA)

DOI:https://doi.org/10.1029/RS025i003p00237· OSTI ID:6594322

James, H G; Benson, R F; Fainberg, J; Stone, R G ^[1]

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1. CDC, Communications Research Centre, Ottawa (Canada) NASA, Goddard Space Flight Center, Greenbelt, MD (USA)

The possibility of using terrestrial ionospheric focusing to improve the directivity of electric dipoles on space missions has been investigated by comparing simultaneous observations of a solar radio storm by the ISIS 1 and ISIS 2 spacecraft, in near earth orbit, and the ISEE 3 spacecraft located beyond the magnetosphere. To this end, a three-dimensional ray tracing in a spherically stratified ionosphere has been carried out for conditions appropriate to the observations by the ISIS spacecraft of a solar radio storm in September 1983. The procedure allows Poynting flux spectral densities measured on ISIS to be converted to spectral densities well outside the ionosphere where they can be compared directly with simultaneous observations on ISEE 3. The results demonstrate good agreement over their common observing frequency range (1-2 MHz). 21 refs.

• OSTI ID: 6594322
• Journal Information: Radio Science; (USA), Vol. 25; ISSN 0048-6604
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
IONOSPHERE
WAVE PROPAGATION
SOLAR RADIO BURSTS
DETECTION
FOCUSING
LENSES
NOISE
RADIOWAVE RADIATION
SATELLITES
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
PLANETARY IONOSPHERES
RADIATIONS
SOLAR ACTIVITY
640104* - Astrophysics & Cosmology- Solar Phenomena
640201 - Atmospheric Physics- Auroral
Ionospheric
& Magetospheric Phenomena