One site I would suggest visiting is Nova's "Magnetic Storm" site at PBS

This is the website companion to a 50-minute Nova epsiode that aired
approximately 3-4 years ago.  I think the video is excellent.  The main
topic is magnetic reversals and the supporting evidence, but it also
includes some information and visuals of how the magnetic field protects
Earth.  I don't think, however, that it has much information on declination.

Grant D. Smith
Western Oregon University - Earth Science Instructor
Oregon State University - PhD student in science education
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On Tue, Mar 4, 2008 at 12:13 PM, Tom-Pierre Frappé <[log in to unmask]>

> Hi all,
> I am teaching an online course ( university level, 3rd year).  My
> students are having a lot of difficulty visualizing the geomagnetic
> field, and making sense of how the declination/inclination changes
> spatially.
> Does anyone knows of good online visualization for the magnetic field of
> the Earth?
> 3D would be best, and interactive simulations would be ideal, but I
> might be wishing for the moon... you can email me your suggestions off
> list, I'll compile them and send a summary back to the list-serve.
> many thanks for your suggestions!
> Tom-Pierre
> --
> Tom-Pierre Frappé
> EOS-Science Education Initiative / ECAC & EOSC114 Administrator
> Dept. Earth and Ocean Sciences
> University of British Columbia
> 6339 Stores Road
> Vancouver, B.C.
> V6T 1Z4, Canada
> Phone:(604)822-3063
> fax:  (604)822-6047
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