Quiet time F2-layer disturbances at geomagnetic equator
A. Kh. Depueva,
A. V. Mikhailov,
and V. Kh. Depuev
Abstract[1] Ionospheric F2 -layer disturbances not related to geomagnetic activity ( Q disturbances) were analyzed using all available NmF2 observations over Huancayo (American sector) and Kodaikanal (Indian sector) stations located at the proximity of geomagnetic equator. Both positive and negative Q disturbances were revealed, their amplitude being comparable to usual F2 layer storm effects. The occurrence of Q disturbances exhibit a systematic dependence on solar activity, season, and local time. The revealed morphology of Q disturbances at Huancayo can be explained by the observed at Jicamarca E![]() ![]() Received 18 May 2004; revised 5 October 2004; accepted 16 December 2004; published 11 March 2005. Keywords: Ionosphere-atmosphere interaction; ionospheric disturbances; equatorial ionosphere. Index Terms: 2415 Ionosphere: Equatorial ionosphere; 2435 Ionosphere: Ionospheric disturbances; 2431 Ionosphere: Ionosphere/magnetosphere interactions. ![]() Citation: 2005), Quiet time F2-layer disturbances at geomagnetic equator, Int. J. Geomagn. Aeron., 5, GI3001, doi:10.1029/2004GI000071. (Copyright 2005 by the American Geophysical UnionPowered by TeXWeb (Win32, v.1.5). |