postmaster@CUVMB.CC.COLUMBIA.EDU (01/13/90)
I am not sure how this phenomenon works, but the interface between the
air masses in a front has a region of very dry air reaching down from the
upper atmosphere a long way towards (but not all the way down to) the
ground. The air on both sides is much moister. Maybe this is part of
the reason? Assuming moist air conducts radio waves at a different rate
(I guess faster would be ideal) than dry air, the "tongue of dry air,"
as it is often described, would serve as a natural waveguide.
--
Eric Roskos (roskos@CS.IDA.ORG or Roskos@DOCKMASTER.NCSC.MIL)
"What is the point of this story? What information pertains?
The thought that life could be better