AURORAL TOMOGRAPHY
Tomography ( from greek: tomos cut, slice ) is a the methods to determine inner structure from measurements made from the outside.
One of the main purposes with ALIS is to determine the full 3D spatial structure of the aurora This is not possible to do with measurements from one single station and that is the main reason for us to develop ALIS as a multistation system that provides us with images of the aurora from several possitions, as many stations as possible with as good coverage of the norhtern scandinavia as possible - to get images of the aurora from all possible directions.
Contents
- Tomography a short introduction to the problem of auroral tomography for ALIS measurements.
- ALIS setup: A very scematic map of the possitions of the ALIS stations.
- Simulation of ALIS tomography
- Auroral model: An image of the model used to test different tomographic methods.
- ALIS images: A set of images from a simulation of measurements with the ALIS system of an aurora in gerographical zenith from Kiruna.
- 3D Reconstruction : Test of tomographic method on simulated measurements of the model aurora with the ALIS system.
- Estimate of ALIS resolution (from my PhD thesis)
- First results of ALIS reconstruction
Bjoern Gustavsson Last modified: Wed Dec 19 03:24:54 MET 2001