3-8
1012
1016
1020
H
WEAK OR FLAT
PRESSURE
GRADIENT
STRONG OR STEEP
PRESSURE
GRADIENT
AG5f0307
Figure 3-7.Horizontal pressure gradient.
A. CROSS SECTION OF A VERTICAL PRESSURE GRADIENT ALONG LINE AA
HORIZONTAL PRESSURE GRADIENT
B.
996
996
1000
1000
1004
1004
1008
1008
1012
1012
1016
A 12
16
16
12
08
04
00
00
04
08
12
A
AG5f0308
Figure 3-8.Cross section of a vertical pressure gradient along line AA.