| タイトル | Coupling of ionosphere and troposphere during the occurrence of isolated tornadoes on November 20, 1973 |
| 著者（英） | Phan, T.; Smith, R. E.; Hung, R. J. |
| 著者所属（英） | NASA Marshall Space Flight Center|Alabama Univ. |
| 発行日 | 1979-04-01 |
| 言語 | eng |
| 内容記述 | The paper examines the coupling between the ionosphere and the troposphere during time periods with isolated tornadoes on the stormy day of November 20, 1973. Observations are made with a high-frequency CW Doppler array system, in which radio receivers located at a central site monitored signals transmitted from three independent remote sites on three sets of frequencies (4.0125, 4.759, 5.734 MHz) and reflected off the ionosphere approximately halfway between the transmitter and receiver sites. It is shown that the sources of the gravity waves associated with tornadoes are always on the squall lines and near the tornado touchdown locations, and that analyses of ionospheric Doppler sounder observations of medium-scale gravity waves can contribute to the understanding of the coupling between the ionosphere and the troposphere during periods of severe storm activity. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 79A33502 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/427453 |
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