Connections between short-period (Pc 1) pulsations and ionospheric parameters
Long-term changes in Pc 1 pulsations and their dependence on latitude are analyzed using data recorded by five stations in Finland during the IMS. The daily Pc 1 occurrences at each station are plotted against the daytime f0F2 parameter. It is found that while the averaged daily durations of morning (Pc 1) pulsations generally decrease with increasing critical frequency (electron density) of the F2-layer, three somewhat different trends can be distinguished for the five stations. It is also found that the indirect connection between mid-latitude Pc 1 pulsations and increased ionospheric absorption of LF radio waves following certain geomagnetic storms (Marcz and Vero, 1977) holds in the case of high-latitude Pc 1 data.
- Research Organization:
- Geodeziai es Geofizikai Kutato Intezet, Sopron, Hungary
- OSTI ID:
- 5881016
- Report Number(s):
- CONF-8406167-; TRN: 87-025035
- Journal Information:
- Adv. Space Res.; (United States), Vol. 5:4; Conference: 25. plenary session of COSPAR, Graz, Austria, 25 Jun 1984
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
F2 LAYER
PULSATIONS
CRITICAL FREQUENCY
ELECTRON DENSITY
ELECTRON PRECIPITATION
FINLAND
MAGNETIC STORMS
RADIOWAVE RADIATION
CHARGED-PARTICLE PRECIPITATION
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
EUROPE
F REGION
IONOSPHERE
PLANETARY IONOSPHERES
RADIATIONS
SCANDINAVIA
WESTERN EUROPE
640201* - Atmospheric Physics- Auroral
Ionospheric
& Magetospheric Phenomena