Accession Number : AD0675133

Title :   AIRBORNE MEASUREMENTS OF THE IONOSPHERE.

Descriptive Note : Final rept. 12 Nov 64-31 Oct 67,

Corporate Author : LOWELL TECHNOLOGICAL INST RESEARCH FOUNDATION MASS

Personal Author(s) : Bibl,K. ; Buchau,J. ; Herman,J. R. ; Pike,C. P. , Jr. ; Reinisch,B.

Report Date : JAN 1968

Pagination or Media Count : 205

Abstract : Utilization of an airborne laboratory for conducting experimental studies of the Earth's ionosphere is described. The equipment employed in the aircraft includes a Granger Path Sounder ionosonde, radio receivers for oblique-incidence observations in the HF, MF and VLF frequency bands, optical equipment for studying upper atmosphere emissions and a system for recording pulse amplitudes in digital form. Results of experimental studies utilizing this equipment are reported. The studies include: solar eclipse effects on the ionosphere; the effects of precipitating Van Allen belt electrons on the ionosphere in the vicinity of the South Atlantic magnetic anomaly and its northern conjugate region; effects of D-region absorption on vertical- and oblique-incidence radio signals; and ionospheric F-region anomalies. (Author)

Descriptors :   (*ATMOSPHERIC SOUNDING, UPPER ATMOSPHERE), (*IONOSPHERE, ELECTRON DENSITY), SOLAR ECLIPSES, RADIOSONDES, HIGH FREQUENCY, MEDIUM FREQUENCY, VERY LOW FREQUENCY, AIRBORNE, IONOSPHERIC DISTURBANCES, ANOMALIES, DOPPLER SYSTEMS, POWER SPECTRA, REFLECTION, ABSORPTION, DATA PROCESSING, RADIO SIGNALS

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE