Technique for measuring ionospheric irregularities generated by high-power oblique HF heating of the F-region

Technical Report · Wed Aug 01 04:00:00 EDT 1990

OSTI ID:5444720

Sales, G S; Reinisch, B W; Ralls, J A

A new technique for investigating the changes in the small to medium scale structure of the F-layer of the ionosphere is developed using the existing capabilities of the University of Lowell Center for Atmospheric Research Digisonde 256 vertical ionospheric sounder. When the ionosphere is heated by a high power HF transmitter operating in an oblique radar or communications mode the formation of irregularities has been observed. The development of these irregularities is described in terms of an index of ionospheric roughness which is shown to correlate very well with the natural formation of spread-F. These measurements are relatively simple and can be carried out from a site directly below the heated region.

• Research Organization: Lowell Univ., MA (United States). Center for Atmospheric Research
• OSTI ID: 5444720
• Report Number(s): AD-A-233883/8/XAB; ULRF--458/CAR; CNN: F29638-87-K-0012
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DOCUMENT TYPES
EARTH ATMOSPHERE
ELECTRON DENSITY
ENERGY
F REGION
HEAT
HEATING
HIGH-FREQUENCY HEATING
INDEXES
IONOSPHERE
MEASURING INSTRUMENTS
MEASURING METHODS
MODIFICATIONS
PLANETARY IONOSPHERES
PLASMA HEATING
RADAR
RANGE FINDERS
ROUGHNESS
SPREAD F
SURFACE PROPERTIES