I have identified a region in the aurorae where wave transformation
is possible, where ß~1
in Earth's atmosphere. I have also described likely mechanisms
for this tranformation. But there is more work to be done. Here
are some things I plan to do next in my quest to answer "Can
magnetic waves in the auroral region transform into acoustic
waves?"
- Gather data from satellite observations of resonant acoustic and Alfvén
waves in a single CME
induced geomagnetic event.
- My search for satellite data
- Determine where the ß~1 region is during an aurora.
- Evaluate how wave velocities, frequencies and wavelengths change
as altitude and ß changes.
- Use data of auroral infrasound observed at Earth’s
surface to extrapolate speeds in the ionosphere and compare
to magnetic wave speeds.
Bibliography
How are aurorae created?
Can we hear the aurorae?
Wave transformation on
the Sun
What is ß?
How can a magnetic wave
transform into an acoustic wave?
Does ß=1 anywhere in Earth’s
atmosphere?
Continuing research
Bibliography