THE NEAR-SURFACE LAYER OF THE OCEAN
conditions and 1.2 m swell revealed a shallow diurnal mixed layer and
strong diurnal thermocline that developed at the top of the seasonal mixed
layer of 20-25 m depth. Low relative humidity (~70%) and clear skies
resulted in appreciable surface cooling ( 0
Q | 140 W mP
-2
P)
even under calm
weather conditions.
Figure 4-30. Numerical simulation of the radiative-convective equilibrium temperature
profiles in the near-surface ocean by Verevochkin and Startsev (2000) for (a)
0
1
/
4
A I Q
6
and (b)
0
1
/
A I Q
6
0
/
p
T
h
T c
T T
Q h
UN
is the
nondimensional temperature, h
T is the bulk temperature of the upper ocean mixed layer, T
N
is the molecular coefficient of kinematic thermal diffusivity;
/
z z h
is the nondimensional
depth, and h is the layer depth determining the model domain. Note the similarity of the
model profiles to the observations under calm weather conditions and strong solar insolation
shown in X Figure 4-31X .
The solar irradiance during the first measurement (14:47 LT) was
1 A I 6
= 594 W mP
-2
P.
There is a diurnal (convective) mixed layer in the
270
4.75. Here