ANALYSIS OF TOPSIDE SOUNDER RECORDS

Journal Article · Sat Feb 01 04:00:00 EST 1964 · Journal of Geophysical Research (U.S.)

DOI:https://doi.org/10.1029/JZ069i003p00407· OSTI ID:4080771

Fitzenreiter, R J; Blumle, L J

A large number of features can be seen on the ionograms obtained by the topside sounder satellite. The most useful feature for the calculation of electron density profile is the extraordinary trace; however, to achieve accurate results, the effect of the geomagnetic field must be carefully considered in the data reduction process. The method of analysis selected assumes that small sections of the profile can be approximated by exponential laminations. This method requires fewer points than other first-order lamination techniques to achieve a given accuracy. It is usually assumed in the analysis that the received echoes correspond to vertical propagation. This assumption is not always valid, and it can in some cases lead to large errors. The sounder also excites the medium in the immediate vicinity of the satellite, giving rise to various plasma resonances. A graph is given that summarizes the local effects that are seen on the ionograms. This graph can be used for a rapid identification of these resonances. (auth)

• Research Organization: Goddard Space Flight Center, Greenbelt, Md.
• Sponsoring Organization: USDOE
• NSA Number: NSA-18-011082
• OSTI ID: 4080771
• Journal Information: Journal of Geophysical Research (U.S.), Journal Name: Journal of Geophysical Research (U.S.) Vol. Vol: 69; ISSN JGREA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

DENSITY
DIAGRAMS
DISTRIBUTION
EARTH
ELECTRONS
ERRORS
LEVELS
MAGNETIC FIELDS
MEASURED VALUES
MOTION
PHYSICS
PLASMA
RADIO WAVES
REFLECTION
RESONANCE
SATELLITES