Wave normal angles of magnetospheric chorus emissions observed on the Polar spacecraft

0357493 - ÚFA 2011 RIV US eng J - Journal Article
Haque, N. - Spasojevic, M. - Santolík, Ondřej - Inan, U. S.
Wave normal angles of magnetospheric chorus emissions observed on the Polar spacecraft.
Journal of Geophysical Research. Roč. 115, - (2010), A00F07/1-A00F07/12. ISSN 0148-0227
R&D Projects: GA AV ČR IAA301120601
Grant - others:GA MŠk(CZ) ME 842
Institutional research plan: CEZ:AV0Z30420517
Keywords : chorus * wave normal * Polar spacecraft
Subject RIV: DE - Earth Magnetism, Geodesy, Geography
Impact factor: 3.303, year: 2010

Using data from the High Frequency Waveform Receiver on board the Polar spacecraft, 1,765 and 993 wave normal angles have been analyzed for 13 orbits containing upper band magnetospheric chorus emissions and 15 orbits containing lower band emissions, respectively. The purpose of this study is to characterize the distribution of the polar wave normal angle for chorus emissions as a function of magnetic latitude. Understanding wave normal angles is an important step in evaluating resonant wave- particle interactions. For upper band chorus, wave normal angles tend to remain at or rise toward the resonance cone angle for low latitudes and midlatitudes but move away from the resonance cone angle at higher latitudes.
Permanent Link: http://hdl.handle.net/11104/0195758