Atmospheric tides in the ionosphere. II. Lunar tidal variations in the F region near the magnetic equator | Zendy

David Forbes Martyn | Zendy

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Atmospheric tides in the ionosphere. II. Lunar tidal variations in the F region near the magnetic equator

Author(s) -

David Forbes Martyn

Publication year - 1947

Publication title -

proceedings of the royal society of london a mathematical and physical sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.814

H-Index - 135

eISSN - 2053-9169

pISSN - 0080-4630

DOI - 10.1098/rspa.1947.0076

Subject(s) - equator , ionosphere , amplitude , atmospheric tide , variation (astronomy) , atmospheric sciences , magnetic dip , lunar orbit , physics , geophysics , geodesy , geology , thermosphere , astrophysics , astronomy , latitude , optics , spacecraft

Three years’ data for the heights and critical frequencies of theF 1 andF 2 regions at Huancayo, Peru, are examined for lunar tides. Semi-diurnal lunar tides are found in all quantities savef 0 F 1 . It is found that the lunar variation in theF 2 region depends on solar time in both phase and amplitude. At certain solar epochs it attains very large amplitudes, up to 60 km. inh max. F 2 and 28% inf 0 F 2 . The theory of these variations, originated in a previous paper, is further developed.

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