๐”– Bobbio Scriptorium
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Radio observations of polar regions

โœ Scribed by Preben Gudmandsen; John Apel; William Campbell; Per Gloersen; Ulf Karstrom; Richard Moore; Robert Suchman; Dennis Trizna

Publisher
Springer
Year
1978
Tongue
English
Weight
250 KB
Volume
13
Category
Article
ISSN
0006-8314

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Ambiguity in identification of polar cap
Ambiguity in identification of polar cap F-region patches: contrasting radio and optical observation techniques
โœ J.J. Sojka; R.W. Schunk; M.D. Bowline; D.J. Crain ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 1014 KB

The phenomenon referred to as polar cap F-region patches can be observed by many different techniques, including measurements of the radio wave critical frequency, the 630 nm intensity, the in situ electron density, and radio wave coherent scatter from irregularities on the patches. Consequently, th

Radio spectrum of two active regions
Radio spectrum of two active regions
โœ Franca Chiuderi Drago ๐Ÿ“‚ Article ๐Ÿ“… 1970 ๐Ÿ› Springer ๐ŸŒ English โš– 615 KB

The results of the total solar eclipse of November 12, 1966, observed at 8 different wavelengths between 3 and 21 cm, are studied and the spectrum of two active regions present on the disk is deduced. It is shown that the observed increase of the flux of the most intense source in the range 3-10 cm