- We have started a project to detect whistlers with VLF measurements.
A VLF antenna has been installed in October 2010 in Humain, Belgium (Lat~50.11 N,
Long~5.15 E), in order to detect whistlers and determine electron densities
along propagation paths.
- The VLF antenna is made of two perpendicular magnetic loops, oriented
North-South and East-West and with an area of approximately 50 square meters each.
The hardware has been installed during winter 2010-2011. After some tests starting in
April 2011, the antenna is now fully working since August 2011.
- This antenna is part of AWDAnet, the Automatic Whistler Detector and
Analyzer system's network. This network covers low, mid and high magnetic
latitudes including conjugate locations. It has been initiated by J. Lichtenberger
(Hungary). Worldwide, 10 antennas are in operation and 23 are planned/in construction.
- The main goals of this project are to build a statistical analysis of
whistlers observed in Belgium, to derive density information along the magnetic
field lines and in particular in the plasmasphere, and finaly to compare with
density in-situ observations made by the
- We will install another antenna at the Belgian Antarctic station Princess
Elisabeth (Lat~71.57°S, Long~23.20°E), with the help of Dr. J. Lichtenberger. This
antenna is composed of two search coils, without a mast in order to withstand the
weather at such latitudes. We will go to Antarctica in January 2016 to make the
installation and proceed to first tests. Then the antenna will record whistlers
automatically and the data will be downloaded next year.
Content manager: Fabien Darrouzet