Effects of Depth on Sonar

[Molon Labe]

Originally Posted by Dr.Sid

Yes .. the shape of the front 'edge' of the shadow zone can be seen on my data too, but not clearly. Sonobuoy made it clear.
But this only extends the layer mechanism a bit. And it is shadow zone SHAPE alone. It does not affect transmittion loss. It stays constant, until you enter shadow zone, then it becomes zero.
Also the front slope of the shado zone is quite steep, I doubt it could be used much.

I've been applying it to active sonar evasion over the last few months, and found that it can make the difference between getting in range for a USET shot or having a ton of ASROCs shot at you.