[Paddlewise] A question about ocean currents and barometric pressure.

Ralph Diaz wrote:  <snip> "...Even that "straightforward" movement is
tricky enough because of the
bottom surface of the passages involved.  To all of this you have to add
the
effects of wind, barometric pressure, any fresh water flow, phases of the
moon, relative location of the moon in its orbit (perigee vs. apogee)."

Quick question about the barometric pressure (bp) aspect of this.  I'd
heard before that bp played a role in currents, but I'd always assumed it
was solely due to the winds that result from changes in bp.  Does bp (or
*changes* in bp) produce an effect on currents aside from the wind?  (I'm
just trying to get a better handle on the underlying physics.)

Evan Dallas
Woodinville, WA


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