Spatial and temporal distributions of midlatitude ionospheric scintillations observed by low-altitude satellites

Details Spatial and temporal distributions of midlatitude ionospheric scintillations observed by low-altitude satellites Spatial and temporal distributions of midlatitude ionospheric scintillations observed by low-altitude satellites

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jatp...44..719t&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 44, Aug. 1982, p. 719-729.

Physics

5

Ionospheric Propagation, Midlatitude Atmosphere, Satellite Observation, Scintillation, Spatial Distribution, Temporal Distribution, Annual Variations, Diurnal Variations, F Region, Low Altitude, Plasma Density, Solar Magnetic Field, Sporadic E Layer, Ultrahigh Frequencies, Very High Frequencies

Scientific paper

Three types of prevailing ionospheric scintillation seen from Japan are identified in observations of ionospheric scintillation spatial and temporal distributions with low altitude VHF and UHF signals. While the rather weak scintillations of type I are primarily associated with the sporadic E-layer, they have been observed at night during the summer and autumn in occasional association with F-layer irregularities originating from localized midlatitude processes. Type II scintillations are stronger than type I, and occur near the equatorward horizon in spring, summer and autumn. This type is concluded to be the midlatitude aftermath of equatorial plume-associated irregularities, causing transequatorial propagation of VHF waves. Type III scintillations are as strong as type II, appear during magnetically active periods, and may be seen as another aspect of the severe scintillation events observed on GHz waves from geostationary satellites.

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