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Relation between virtual and actual heights in the ionosphere

1957; Elsevier BV; Volume: 11; Issue: 3-4 Linguagem: Inglês

10.1016/0021-9169(57)90067-3

1878-593X

G.A.M. King,

Seismic Waves and Analysis

There are two general methods of deducing the “true” heights from the virtual height-frequency curve. Aspects of the comparison method treated are choice of model, effect of the earth's magnetic field, the meaning of total electron content, and the use of hp and M3000 as height indicators. The integral method is discussed from the viewpoints of the derived curve and the step-by-step procedure. There is a brief treatment of the nominal accuracy of reduction, sections on the importance of the earth's magnetic field and on “valleys” between layers, and a discussion of factors affecting the actual accuracy of analysis. There are five current research projects at Christchurch based on true height analysis. The bibliography is divided up according to subject, and there are notes on the references.