Obviously, it will not be a nice smooth curve. Mostly, people found out that it follows this shape. There is a reason for that.
Page 19
Again. you see what is it; not uniformly distributed; you have got more number of smaller waves, less number of broader waves, which is true, which is how it happened. Not only that, people will find out that for a given energy, normally, there is no waves beyond some long wave; and, no wave beyond this thing. Practically, no wave. There will be maximum number of waves or most dominant waves at some length. This is what has been always found out from observation and that makes sense. Example – take a location; wind is going at 20 knots. You will find out that there are… Let us put numbers here. This is say 500 meters long wave; this is say 50 meters long wave. This 500 meters long wave is going to be approximately 20 seconds or so; maybe, 20 seconds. This may be 6 seconds