Wave shoaling is the process when surface waves move towards shallow water, such as a beach, they slow down, their wave height increases and the distance between waves decreases. This behavior is called shoaling, and the waves are said to shoal.n a nautical sense, a bar is a shoal, similar to a reef: a shallow formation of (usually) sand that is a navigation or grounding hazard, with a depth of water of 6 fathoms (11 metres) or less. It therefore applies to a silt accumulation that shallows the entrance to or course of a river, or creek.
Phosphorus (P) Phosphorus (P), phosphorusnonmetallic chemical element of the nitrogen family (Group 15 [Va] of the periodic table) that at room temperature is a colourless, semitransparent, soft, waxy solid that glows in the dark.
white phosphorus. n. A highly unstable, waxy white or yellowish allotrope of phosphorus, P4, that spontaneously ignites upon exposure to oxygen, used especially in bombs and artillery shells as an incendiary agent or to produce a smokescreen.