Attenuation of the ground wave of a low frequency electromagnetic pulse
U.S. National Bureau of Standards ; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1965 - Science - 24 pages
The attenuation of the peak of the ground wave EM pulse is presented as a function of distance. These attenuation functions are compared to combinations of single frequency attenuation functions and simple attenuation functions based on inverse distance raised to integral and non-integral exponents.
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amplitude attenuation functions attenuation rate Attenuation with distance BUREAU OF STANDARDS C. M. Lilley Central Radio Propagation Colorado Complex spectrum composite attenuation curves composite curve computer data conducting spherical earth corresponding pulse attenuation decibel effective conductivity ELECTROMAGNETIC PULSE J. C. Figure 15 finitely conducting spherical frequency components FREQUENCY ELECTROMAGNETIC PULSE ground wave pulse initial crest iono ionospheric height ionospheric wave hop J. C. Morgenstern Aug J. R. Johler Johler and Lilley Johler and Morgenstern Kellar km Figure L. C. Walters Laboratory Astrophysics Lilley l96l LOW FREQUENCY ELECTROMAGNETIC low radiofrequencies mhos/meter Mitre Corporation Morgenstern 1963 NATIONAL BUREAU NBS Circular 573 NBS Technical Note Note 60 Johler nuclear detonation Office of Standard peak physical constants pulse attenuation curve pulse in terms PULSE J. C. Morgenstern pulse propagation Radio Propagation Laboratory Radio pulse Radio Standards RELATIVE SKYWAVE DELAY sec/j sferic Single frequency Technical Note 60 Technology theory tion wave component waveform