Voltar
Artigo Produção Nacional
BIBTEX RIS

Comparison of equatorial electrojet characteristics at Huancayo and Eusébio (Fortaleza) in the South American region

1982; Elsevier BV; Volume: 44; Issue: 9 Linguagem: Inglês

10.1016/0021-9169(82)90007-1

ISSN

1878-593X

Autores

R. P. Kane, N. B. Trivedi,

Tópico(s)

Ionosphere and magnetosphere dynamics

Resumo

Abstract The H , D and Z average daily variations for five international quiet days are compared for Huancayo (12°S, 75°W, dip +1.9°) and Eusebio near Fortaleza (4°S, 39°W, dip −3.5°) in the South American region, for the 12 successive months, October 1978-September 1979. The H range shows that the electrojet is weaker in the Fortaleza region. Also, the electrojet center has latitudinal excursions from month to month at both the locations, but not in a similar way. The D variations indicate excursions of northern hemisphere S q current systems into the southern hemisphere (or vice versa) but in a dissimilar way at Eusebio and Huancayo. Also, significant ΔD magnitudes are noticed even at midday, indicating possibility of meridional currents. It seems that the overhead S q current pattern changes in form, while moving over from the Fortaleza region to the Huancayo region.

Referência(s)