ESS5
Prof.
Jin-Yi Yu
Vortocity and
Divergence
qDecreasing vorticity in
the zone between a trough and
ridge leads to upper air
convergence and sinking motions
through the atmosphere, which
supports surface high pressure
areas.
qIncreasing vorticity in
the zone between a ridge and
trough leads to upper air
divergence and rising motions
through the atmosphere, which
supports surface low pressure
areas.
