Final answer:
The signal of one prolonged blast followed by two short blasts is a maritime navigational communication, which does not align with the given energy calculations and wave physics data provided.
Step-by-step explanation:
The signal consisting of - 1 Prolonged blast + 2 short blasts is related to maritime navigation rules. In the context of the information provided, this appears to be out of context as the references given pertain to energy calculations and wave physics. For the signals in a nautical sense, one prolonged blast followed by two short blasts is typically used to communicate certain maneuvers or actions of a vessel, particularly under power, but each specific signal would depend on the situation, such as the rules of navigation according to the International Regulations for Preventing Collisions at Sea (COLREGs). However, the references provided do not correspond with that, and thus a direct application or interpretation cannot be concluded from those data points.