Atmospheric Effects Assessment Program: Ionospheric Sounding
Final rept. for period ending Oct 1993
NAVAL COMMAND CONTROL AND OCEAN SURVEILLANCE CENTER RDT AND E DIV SAN DIEGO CA
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This document reports efforts on two main goals 1 to study the short-term ionospheric variability, and 2 to study the effects of this variability on high-frequency HF skywave field strength. To achieve the first goal, ionospheric soundings are being done at 5-minute intervals at San Diego, CA, and at Logan, UT. This time interval was chosen to adequately resolve variations produced by locally generated gravity waves. To study the effects of short-term ionospheric variability on high frequency communications, a circuit is being established to measure the variability of the received HF signal strength. The chosen circuit will have the transmitter located in Forsyth, MT, and the receiver in Imperial Beach, CA approximately 20 miles south of NRaD. Ionosphere, Sounding, Traveling ionospheric disturbance, HF Propagation.
- Atmospheric Physics