Skip to Main content Skip to Navigation
Journal articles

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

Abstract : 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.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03036134
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Wednesday, December 2, 2020 - 3:12:16 PM
Last modification on : Tuesday, May 10, 2022 - 3:24:57 PM
Long-term archiving on: : Wednesday, March 3, 2021 - 7:37:07 PM

File

2009GL040974.pdf
Publisher files allowed on an open archive

Identifiers

Collections

Citation

F. Němec, T. Raita, Michel Parrot, O. Santolik, T. Turunen. Conjugate observations on board a satellite and on the ground of a remarkable MLR-like event. Geophysical Research Letters, American Geophysical Union, 2009, 36, ⟨10.1029/2009gl040974⟩. ⟨insu-03036134⟩

Share

Metrics

Record views

19

Files downloads

52