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Statistical comparison of isolated and non-isolated auroral substorms
The present study compares isolated and non-isolated substorms in terms of their global morphology and energy deposition. The analysis is based on a list of geomagnetic substorm onsets identified with magnetometer data from SuperMAG and published previously by Newell and Gjerlove (2011a). Isolated substorms are defined as those with separation of two consecutive onsets no less than 3 h. The auroral data are obtained from the global ultraviolet imager (GUVI) on board the TIMED satellite and are rebinned into typical magnet ...
Liou, Kan; Newell, Patrick; Zhang, Yong-Liang; Paxton, Larry;
Published by: Journal of Geophysical Research: Space Physics Published on: 05/2013
YEAR: 2013   DOI: 10.1002/jgra.50218
Solar cycle dependence of the seasonal variation of auroral hemispheric power
Although much has been done on the hemispheric asymmetry (or seasonal variations) of auroral hemispheric power (HP), the dependence of HP hemispheric asymmetry on solar cycle has not yet been studied. We have analyzed data during 1979\textendash2010 and investigated the dependence of HP hemispheric asymmetry/seasonal variation for the whole solar cycle. Here we show that (1) the hemispheric asymmetry of HP is positively correlated to the value of solar F10.7 with some time delay; (2) it is closely related to the coupling ...
Zheng, Ling; Fu, SuiYan; Zong, QuiGang; Parks, George; Wang, Chi; Chen, Xi;
Published by: Chinese Science Bulletin Published on: 02/2013
YEAR: 2013   DOI: 10.1007/s11434-012-5378-6
auroral power; coupling function; hemispheric asymmetry; precipitation; solar cycle