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Publications |
Research
- Combined radar and optical studies of auroral small scale structures.
The main motive is foremost to establish a wealth of high-quality
multi-platform observations of smale scale auroral forms,
and
to use these to increase our understanding of the energy flow in
magnetosphere-ionosphere.
Collaborators:
Trond S. Trondsen,
Joshua Semeter,
Joachim Vogt,
- Theoretical studies, and numerical modelling, of local
magnetosphere-ionosphere coupling. With focus on relaxation processes
that can relieve the magnetosphere from highly stressed situations
brought about by enhanced inflow of plasma from the distant tail.
Collaborators:
Joachim Vogt,
- Theoretical studies of density depletions found near auroral arcs,
in combination with case studies using the EISCAT radar facility.
Aurora Borealis
My current project is to assemble a light-intensified video camera,
called Odin for use in conjunction with
the EISCAT radar system in studies of aurora.
By visiting the page presenting Selected
Events you can view some results from this auroral imager.
But below you can view some results from my dear colleagues:
Below are some QuickTime movies of explosive auroral activity,
taken by Trond S. Trondsen in Rabbit Lake, Canada, in
1995:
- Canada, 95, Tape #2
- Canada, 95, Tape #3
- Canada, 95, Tape #9
Further we have some MPEG movies showing extremely beautiful curl and
streaming features of the aurora, in Ramfjordmoen, Norway, December 1994:
- Dec. 7, 20:06:27 UT:
(2.8 MB, mpeg)
- Dec. 7, 20:07:40 UT:
(2.7 MB, mpeg),
(10.9 MB, mpeg)
By courtesy of
Dr. H. U. Frey,
Prof. Dr. G. Haerendel,
and
Prof. Dr. J. Vogt, then working for
Max-Planck-Institut für
extraterrestrische Physik
The video sequences shows a relatively small part of the aurora
(approximately 20 x 30 km in size at the altitude of the aurora), which
usually spans the entire sky, looking along the magnetic field line
which is nearly vertical. Please contact me for closer
information on the content.
visitors since November 21, 2001
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