Investigation of Electron Density Profile in the ionospheric D and E region by Kagoshima rocket experiment

Details Investigation of Electron Density Profile in the ionospheric D and E region by Kagoshima rocket experiment Investigation of Electron Density Profile in the ionospheric D and E region by Kagoshima rocket experiment

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsa13a1092a&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SA13A-1092

Computer Science

Sound

2423 Ionization Processes (7823), 2427 Ionosphere/Atmosphere Interactions (0335), 2443 Midlatitude Ionosphere, 2467 Plasma Temperature And Density, 2487 Wave Propagation (0689, 3285, 4275, 4455, 6934)

Scientific paper

The radio wave propagation characteristic in the lower ionosphere is important because of its effect on commercial radio communication, navigation, and broadcast services. The electron density is of primary interest in this region because the high ion-neutral collision frequencies result in radio wave absorption. In order to investigate the ionization structure in the ionospheric D and E region by using the propagation characteristics of MF-band and LF-band radio waves, S-310-37 and S-520-23 sounding rocket experiments have been carried out at Uchinoura Space Center (USC). S-310-37 sounding rocket was launched at 11:20 LT on January 16, 2007. The apex of rocket trajectory was about 138 km. Then S-520-23 sounding rocket was launched at 19:20 LT on September 2, 2007. The apex was about 279 km. As a common measurement, these sounding rockets measure the fields intensities and the waveform of radio waves from NHK Kumamoto broadcasting station (873kHz, 500kW) and JJY signals from Haganeyama LF radio station (60kHz, 50kW). The approximate electron density profile can be determined from the comparison between these experimental results and propagation characteristics calculated by the full wave method. We will get the most probable electron density profile in the ionosphere. In presentation, we will show the propagation characteristic of LF/MF radio waves measured by two sounding rocket experiments. Then we will discuss the analysis method and the estimated electron density profile in the ionosphere.

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