Internal Climate Variability
Some key concepts to review:
Recall
that high
pressure is
associated with cold temperatures
and sinking motion. The sinking motion
occurs because surface air moves away from the
high pressure center under the influence of gravity,
and draws down air from above.
Conversely,
low pressure is associated with warm temperatures
and rising motion. The rising
motion occurs
because surface air converges on an area of low
pressure under the influence of gravity, forcing rising
motion over the low.
What
kind of hydrologic conditions are associated with
a high and low?
Recall
also that the predominant wind direction at the equator
isÉ