Preliminary Investigation of Ionospheric Modification Using Oblique Incidence High Power HF Radio Waves
LOWELL UNIV MA CENTER FOR ATMOSPHERIC RESEARCH
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A special experiment was carried out using a high powered transmitter and a high gain rhombic antenna to heat the ionosphere at a distance of 1300 km from the transmitter. A Digisonde ionospheric sounder was located at the midpoint to sense any changes that might occur in the ionosphere at the heating cycle period of ten minutes. The measured phase data was processed using spectrum analysis in an attempt to detect this ten minute period. The results are not conclusive but there is some indication that the heating period was detected only during the nighttime in agreement with theoretical prediction. Keywords Ionosphere Modification High frequency Propagation.
- Atmospheric Physics
- Fluid Mechanics