Atmospheric tides in the ionosphere. III. Lunar tidal variations at Canberra | Zendy

David Forbes Martyn | Zendy

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Atmospheric tides in the ionosphere. III. Lunar tidal variations at Canberra

Author(s) -

David Forbes Martyn

Publication year - 1948

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.1948.0090

Subject(s) - ionosphere , dynamo , isobaric process , geodesy , geophysics , tidal force , atmospheric tide , physics , geology , atmospheric sciences , thermosphere , astronomy , magnetic field , thermodynamics , quantum mechanics

A study has been made of the lunar variations in heights and critical frequencies of theE, F 1 andF 2 regions above Canberra, Australia. Semi-diurnal lunar variations have been found in all these quantities, and the harmonic coefficients determined. From the study of these it is concluded: (a ) that ionospheric lunar variations are caused by ionic drift under the action of the ‘dynamo’ electric forces, and not by simple tidal rise and fall of isobaric surfaces; (b ) that the lunar magnetic variations are not produced in theE, F 1 orF 2 regions.

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