DIFFUSION COEFFICIENT OF THERMAL POLLUTION
385
FIG. 1. Surface temperature of the thermally polluted sea. This diagram is produced from
the original picture of different coloration.
3. SURFACE TEMPERATURE DISTRIBUTION OF THE SEA
It is said that the lateral spread of the plume in the sea may be expressed
by a Gaussian distribution (e.g., Omidov, 1968; Okubo, 1970). When the
difference of temperature at a point (x, y) from that far enough away is
denoted by T(x, y), then
7(s, y)/To(x) = exp( -y2/2t7,2)
TAR1. L: 11. Spread of the plume of thermal pollution"
y (left) (m)
Y (right) (m)
(m)
Temperature ('C)
Temperature ( C)
26.0
27.5
290
30.5
30.5
29.0
27.5
26.0
100
96
60
41
27
28
6 0 9 9
2 W
17.1
105
79
30
21
87
122
I50
3(X)
282
158
117
-..
100
154
I90
400
345
190
60
-
-~
40
107
176
600
328
107
-. . .
88
165
- .
45
104
800
275
47
-.. ~
-
I27
IOIX,
220
.. . .
-.
'I 'llic Icniperaiurc w r y Lir from the source is 24.5 C.