200 Lecture 12 
TEMPERATURE ———* 2 DEG 
FORENOON 
MIDNIGHT- 
EVENING 
EARLY MORNING 
ISOTHERMAL 
LAYER 
THERMOCLINE 
NONDIMENSIONALIZED DEPTH, kx 
Fig. 12.1. Computed daily variations of the mean temperature of the sea. 
literature on sound scattering half of this space wavelength is always identified 
with the diameter of the so-called temperature patches. An extended study 
(Fig. 12.3) shows that the patch radius is approximately equal to the depth at 
which the measurement was taken; the points of the "patch radius vs depth" 
lie as close to the line "patch radius equal to depth" as can be expected for sta- 
tistical measurements. This result is very strange and hard to understand, but 
DEPTH: 25FT 
DEPTH: I1OFT Fig. 12.2. Microthermal variations 
at various depths. 
a L DEPTH: 170 FT 
40 YD 
