Ionospheric disturbances during November 30 to December 1, 1988. IX - VHF-20 GHz ionospheric scintillations
Abstract
In association with a geomagnetic storm severe ionospheric scintillations of 136 MHz, 12, and 20 GHz radio waves from geostationary satellites ETS-II, BS-2, and CS-3, respectively, were observed. Surprisingly, a 2.5 dB peak-to-peak amplitude of the 20 GHz scintillations is attained. These scintillations are simultaneously accompanied by both range-type spread-F and an abnormal increase in total electron content due to a well developed equatorial anomaly. It is inferred that the 12 and 20 GHz scintillations were caused by localized very-small scale irregularities in the F-region. In addition to this peculiar event some characteristics are described of 12-GHz ionospheric scintillations observed in the past.
- Publication:
-
Communications Research Laboratory Review
- Pub Date:
- February 1990
- Bibcode:
- 1990CRLRv..36...75N
- Keywords:
-
- Ionospheric Disturbances;
- Ionospheric Propagation;
- Magnetic Storms;
- Scintillation;
- Spread F;
- F Region;
- Ionospheric Electron Density;
- Ionospheric Storms;
- Synchronous Satellites;
- Geophysics