Chapter 2: SEA SURFACE MICROLAYER
In order to extend the parameterization to cases with positive latent heat flux
(condensation), Rf 0 should be reset equal to zero if it becomes positive
according to expression (2.97).
2.4.4 Model calculations
Penetrating solar radiation is specified according to (1.61)-(1.62). There
are also material coefficients to be set in the model as functions of
temperature and salinity; they are , , , , , and
T
T
p
L c
Q N D
U . As a first
approximation, the influence of sea surface temperature and salinity
variability on the material coefficients is ignored, while the dimensionless
product
0
T S
E
is fixed at 0.026.
Figure 2-15. Instantaneous vertical temperature profiles in the upper 3 cm of the ocean at the
end of the time period between renewal events. The contribution of the solar heating (dashdotted), surface cooling (dashed), and the combined effect (contiguous) are calculated from a
renewal model for (a, c) Q 0 = 140 W m
-2 , Q E = 70 W m
-2 and (b, d) Q 0 = 70 W m
-2
, Q E = 35 W
m
-2 . The top row (a, b) corresponds to free and the bottom row (c, d) to forced convection
regimes. Solar irradiance just below the sea surface I R0 = 1000 W m
-2 , water temperature T 0 =
29
o C, and salinity S 0 = 36 psu are the same in all cases. Note the different temperature scale
between the top and bottom pairs of diagrams.
113