Wave interaction observations of ionospheric modification in the D-region
U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1981 - Science - 34 pages
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22 FEBRUARY approximately attachment coefficient collision frequency Colorado cross modulation data D-region electron density D-region electron temperature Dalgarno and Henry electron cooling electron density versus electron temperature change electron temperature versus energy equation February l4 Figure l3 Flare Sudden Phase flare that occurred heater can nullify heater transmitter power heating transmitter high power heating Hz cross modulation imately increase in D-region increase in electron l0 Hz cross LF 60 kHz measurements MEGAWATTS modulation of WWVB nullify the Solar Percent cross modulation phase advance phase and amplitude Phase Anomaly SPA photoionization Platteville heater Platteville transmitter Platteville transmitting ordinary power at 5.4 produced rate coefficients received at Bennett shown in Figure skywave solar flare l905 Solar Flare Sudden Sudden Phase Anomaly temperature versus transmitter Theoretical Gurevich theory total cross modulation transmitter at Platteville transmitting ordinary wave U.S. Department versus the heater VERSUS TRANSMITTER POWER Walker l968 WWVB 60 kHz