![]() If you can't detect anything when under layer, try coming above it, the target is probably there and you might be in his shadow zone. ![]() Video explaining layer, surface duct, shadow and convergence zones: Įffects of layer on sonar detection and tacticsĪ Sub below the layer will be more difficult to detect by ships and subs above the layer and vice versa. I'm not sure if CZ are modelled in the game yet, anyway combat in CW takes place at much shorter distances so CZ's would not influence us anyway. CZs form concentric circles around the source and targets can be heard over the horizon from 2nd or even 3rd CZ in good conditions. CZ may let a ship hear other sources of sound that are too far for direct contact. Sound waves reaching very deep waters will eventually return back to the surface in area called Convergence zone (CZ) as far as 30 miles away from source. This creates " shadow zone" just under the layer, where a sub can be hidden from surface ships (but at the same time it can't hear the surface ships). The sound that penetrates the layer will then curve according to depth and temperature. The sound is effectively "funneled" between surface and layer - this is the Surface duct. Current "strength" and depth of layer is displayed in game in CONDITIONS tab.Ī part of sound travelling from the surface downwards will be deflected by the layer and then curve back to the surface and then back to the layer etc. Strong layer will deflect more sound energy, weak layer less. High seas or currents will weaken the layer. ![]() The layer will not form if water is not deep enough. Layer or thermocline is a boundary between warmer surface water and colder deep water which acts as a kind of sound barrier, deflecting part of sound energy coming to it from above or below. :) I tried to produce an answer that is simple without being too simplistic sorry if I offended someone's scientific sensibilities :) If you have any more questions, I'll be happy to answer!Ī: I believe this innocent question is worth several thick scientific books. I'm not a great sub expert but I hope these will help new submariners to understand the game faster. I realized I once prepared similar guide for a friend so I updated and polished it and would like to publish it here for all new sub simmers. When watching live streams of the great submariner and youtuber Jive Turkey ( ), I noticed several questions appear regularly. ![]()
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