Chapter 2: SEA SURFACE MICROLAYER
2
1
2
k
t
F
Pw
U
.
(2.126)
In order to include the effect of natural drop size distributions, Craeye and
(1998) introduced the spectral rainrate falling on the sea surface
0
3
0
0
4
3
t
dP
r n r w
dr
S
(2.127)
which leads to a kinetic energy flux of
3
3
0
0
0
2
.
3
c
k
t
r
F
r n r w dr
S U
f
³
(2.128)
Figure 2-23. Friction velocity in the upper ocean attributed to the flux of kinetic energy
carried by rain as function of rainrate for two values of critical radii c
r calculated from
(2.131).
For rain with a drop size distribution (1.65) and terminal velocities
described by (2.113) the kinetic energy flux is then determined by
135
Schl ssel
ü
2
1
2
k
t
F
Pw
U
.
(2.126)
In order to include the effect of natural drop size distributions, Craeye and
(1998) introduced the spectral rainrate falling on the sea surface
0
3
0
0
4
3
t
dP
r n r w
dr
S
(2.127)
which leads to a kinetic energy flux of
3
3
0
0
0
2
.
3
c
k
t
r
F
r n r w dr
S U
f
³
(2.128)
Figure 2-23. Friction velocity in the upper ocean attributed to the flux of kinetic energy
carried by rain as function of rainrate for two values of critical radii c
r calculated from
(2.131).
For rain with a drop size distribution (1.65) and terminal velocities
described by (2.113) the kinetic energy flux is then determined by
135
Schl ssel
ü