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Found 3 entries in the Bibliography.
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Investigation of sudden electron density depletions observed in the dusk sector by the Poker Flat, Alaska incoherent scatter radar in summer
This paper investigates unusually deep and sudden electron density depletions (troughs) observed in the Poker Flat (Alaska) Incoherent Scatter Radar data in middle summer of 2007 and 2008. The troughs were observed in the premidnight sector during periods of weak magnetic and solar activity. The density recovered to normal levels around midnight. At the time when the electron density was undergoing its steep decrease, there was usually a surge of the order of 100 to 400 K in the ion temperature that lasted less than 1 h. ...
Richards, P.; Nicolls, M.; St.-Maurice, J.-P.; Goodwin, L.; Ruohoniemi, J.;
Published by: Journal of Geophysical Research: Space Physics Published on: 12/2014
YEAR: 2014   DOI: 10.1002/jgra.v119.1210.1002/2014JA020541
Ionospheric storm time dynamics as seen by GPS tomography and in situ spacecraft observations
During major geomagnetic storms anomalous enhancements of the ionospheric density are seen at high and middle latitudes. A number of physical mechanisms have been invoked to explain these storm time density anomalies including an expansion of high-latitude electric plasma convection to midlatitudes, thermospheric neutral winds, and changes in the ionospheric composition. However, it remains unclear which mechanism plays the dominant role in the formation of storm time density anomalies, partly because of insufficient coverag ...
Pokhotelov, D.; Mitchell, C.; Spencer, P.; Hairston, M.; Heelis, R.;
Published by: Journal of Geophysical Research: Space Physics Published on:
YEAR: 2008   DOI: https://doi.org/10.1029/2008JA013109
Undulations on the equatorward edge of the diffuse proton aurora: TIMED/GUVI observations
Undulations on the equatorward edge of the diffuse proton aurora have been identified by using TIMED/GUVI auroral images in the far ultraviolet wavelengths. While undulations have been previously reported on the duskside (Lui et al., 1982), GUVI observations show the undulation also occurs in the dayside, nightside, and morningside. The GUVI proton auroral images provide direct optical evidence that the undulations occur in the proton aurora. It is also the first detection of the undulation in the dayside indicating stron ...
Zhang, Y.; Paxton, L.; Morrison, D.; T. Y. Lui, A.; Kil, H.; Wolven, B.; Meng, C.-I.; Christensen, A.;
Published by: Journal of Geophysical Research Published on: 09/2005
YEAR: 2005   DOI: 10.1029/2004JA010668
auroral undulation; K-H instability; Magnetic storm; plasma convection