Figure 9-10.-A shaded shallow sound channel axis depth display.
strength of the shallow sound channel (SSC) at those
grid points where these channels exist and meet
minimal descriptive criteria. See figure 9-11.
No shallow sound channels or
strength <3 ft/sec
Strength 3 5 ft/sec
3. A shaded shallow sound channel cutoff frequency
display. The amount of shading indicates the limiting
frequency of the shallow sound channel. See figure
No shallow channels or
frequency> 300 Hertz
Frequency 151 300 Hertz
Medium Frequency 51-150 Hertz
Frequency 1- 50 Hertz
Figure 9-11.-A shaded shallow sound channel strength display.