Conjugate observations on board a satellite and on the ground of a remarkable MLR-like event

0332475 - ÚFA 2010 RIV US eng J - Journal Article
Němec, František - Raita, T. - Parrot, M. - Santolík, Ondřej - Turunen, T.
Conjugate observations on board a satellite and on the ground of a remarkable MLR-like event.
[Kombinované pozorování význačné události typu MLR na družici a pozemními přístroji.]
Geophysical Research Letters. Roč. 36, - (2009), L22103/1-L22103/4. ISSN 0094-8276. E-ISSN 1944-8007
R&D Projects: GA ČR GA205/09/1253; GA MŠMT ME09107
Institutional research plan: CEZ:AV0Z30420517
Keywords : MLR * DEMETER * conjugate observations
Subject RIV: BL - Plasma and Gas Discharge Physics
Impact factor: 3.204, year: 2009
http://www.agu.org/pubs/crossref/2009/2009GL040974.shtml

Electromagnetic waves observed by low-altitude satellites and on the ground have sometimes – when represented as a frequency-time spectrogram – a form of several nearly parallel and almost equidistant clearly defined lines at frequencies between 1 and 8 kHz. These may drift in frequency and they are usually called Magnetospheric Line Radiation (MLR). Although they have been known for a long time, their origin is still unclear. We present an experimental study using both ground-based and satellite data, showing for the first time a detailed analysis of the simultaneous observations of an MLR-like event on the ground and in the conjugate region. We demonstrate that the individual lines forming the event result (at least in this particular case) from elements reflected between the northern and southern hemispheres.

Využití kombinace družicového a pozemního měření pro detailní analýzu význačné události typu MLR a určení jejího původu.
Permanent Link: http://hdl.handle.net/11104/0177726