Artículo

Negative phases at South-American stations during magnetic storms

Pincheira, X. T.; Batista, I. S.; Abdu, M. A.; Richards, P. G.

Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Instituto de Geofísica, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Pincheira, X. T., et al. (2000). Negative phases at South-American stations during magnetic storms. Geofísica Internacional; Vol. 39 No. 1, 2000. Recuperado de https://repositorio.unam.mx/contenidos/42396

Descripción del recurso

Autor(es)
Pincheira, X. T.; Batista, I. S.; Abdu, M. A.; Richards, P. G.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Negative phases at South-American stations during magnetic storms
Fecha
2012-05-01
Resumen
Ionospheric data at three South-American stations (in low, mid and high latitudes) show negative phases in the high latitude location during magnetic storms. The negative phases in foF2 are caused by changes in the ratio between atomic and molecular concentrations of the neutral atmosphere. We find that at high latitudes the negative phases are well explained by the [O]/[N2] rate changes. As the latitude decreases, as the wind influence on the F2 layer peak is dominant, the propagation of gravity waves can explain short-lived negative phases. In low latitudes, disturbed thermospheric winds can cause time delays in the normal pattern of foF2, creating alternating positive and negative phases.
Tema
Ionosphere; magnetic storms; negative phases.; Ionosfera; tormentas magnéticas; fases negativas.
Idioma
spa
ISSN
0016-7169

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