ee5391aa@hydra.unm.edu (Duke McMullan n5gax) (09/25/89)
A friend of mine heard that solar flare activity can affect local magnetic
declination by as much as +/- 5 degrees over a period of a few days.
We are curious about this, because those of us who survey caves frequently
rely on magnetic instruments, rather than more accurate but much harder to
use transits or theodolites.
Does anyone out there KNOW anything about this?
(Conjecture is fine, but please label it clearly.)
Minding inquires know want to,
d
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Duke McMullan n5gax nss13429r phon505-255-4642 ee5391aa@hydra.unm.edu