Detalhes bibliográficos
| Ano de defesa: |
1969 |
| Autor(a) principal: |
Pawel Rozenfeld |
| Orientador(a): |
Dharam Bir Rai |
| Banca de defesa: |
Não Informado pela instituição |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
eng |
| Instituição de defesa: |
Instituto Nacional de Pesquisas Espaciais (INPE)
|
| Programa de Pós-Graduação: |
Programa de Pós-Graduação do INPE em Ciência Espacial
|
| Departamento: |
Não Informado pela instituição
|
| País: |
BR
|
| Link de acesso: |
http://urlib.net/sid.inpe.br/jeferson/2005/06.10.11.59
|
Resumo: |
A short review of the source and propagation characteristics of atmospherics is given. Basic concepts of mode theory of wave propagation are presented and the single-station and multi-station techniques used by earlier workers to study the propagation of atmospherics are discussed. Using the single-station technique the distances to origin and amplitude spectra of atmospherics are determined. It was observed that the amplitudes of nighttime spectra are always greater than the amplitudes of daytime spectra. There is a tendency for the peak frequency of atmospherics to vary with distance during the day and night. The results indicate that there is probably an energy maximum in the ELF band bayond the maximum observed in the V.L.F. band. |
