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A Nomenclature for Oblique Ionospheric Soundings and Ray Tracing
Author(s) -
Davies Kenneth
Publication year - 1967
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1002/rds19672111395
Subject(s) - ionosphere , oblique case , ray tracing (physics) , geophysics , physics , backscatter (email) , geology , international reference ionosphere , radio wave , geodesy , meteorology , computational physics , optics , computer science , telecommunications , quantum mechanics , wireless , total electron content , tec , linguistics , philosophy
This is a short note drawing attention to the recommendations of international working parties (at Lindau, Germany and Leicester, England) concerning descriptive nomenclature and standard parameters for use in oblique ionospheric radio propagation. The description of oblique ionograms involves the use of terms such as lowest observed frequency, maximum observed frequency, and junction frequency. Path structure is defined by reflections from ionosphere and ground starting at the transmitter. This method is extended to the case of backscatter. Finally, for intercomparison of magnetoionic ray‐tracing programs, standard numbers are suggested for the earth's radius, the free‐space velocity, and the geomagnetic field.