Browsing by Author "Donovan, Eric F."
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An Evening Sector Ps 6 - Omega Band Event
Connors, Martin; Syrjasuo, Mikko; Donovan, Eric F.; Greffen, Mike; Jackel, Brian; Trondsen, Trond; Voronkov, Igor; McPherron, Robert L.; Russell, Christopher T.; Sigwarth, John; Mende, Stephen B. (2008-01-29)Abstract. Ps 6 magnetic disturbances and associated optical forms known as omega bands are usually associated with the morning sector. Some evidence for similar phenomenology in the evening sector has been presented ... -
Simultaneous ground and satellite observations of an isolated proton arc at subauroral latitudes
Sakaguchi, Kaori; Shiokawa, Kazuo; Ieda, Aki; Miyoshi, Y; Otsuka, Y; Ogawa, T; Connors, Martin; Donovan, Eric F.; Rich, F. J. (Journal of Geophysical Research, 2007)We observed an isolated proton arc at the Athabasca station MLAT: 62◦N) in Canada on 5 September, 2005, using a ground-based allsky imager at wavelengths of 557.7 nm, 630.0 nm, and 486.1 nm (Hβ). This arc is similar to ... -
Time Evolution of the Substorm Current Wedge from Ground and Space-based Magnetic Fields
Connors, Martin; Russell, Christopher T.; Donovan, Eric F.; Angelopoulos, Vassilis; Voronkov, Igor; Mende, Stephen B.; Glassmeier, Karl-Heinz; Hayashi, Kanji; Spanswick, Emma; McFadden, James (2007-12-19)Over the past several years, intensive efforts have resulted in a significant improvement in the ground instrumentation for auroral studies in North America. A major part of this is due to the THEMIS ground program, both ... -
Time Evolution of the Substorm Current Wedge from Ground and Space-based Magnetic Fields
Connors, Martin; Russell, Christopher T.; Donovan, Eric F.; Angelopoulos, Vassilis; Mende, Stephen B.; Glassmeier, Karl-Heinz; Hayashi, Kanji; Spanswick, Emma; McFadden, James (2007-10-05)Over the past several years, intensive efforts have resulted in a significant improvement in the ground instrumentation for auroral studies in North America. A major part of this is due to the THEMIS ground program, both ...