Wave trough
Lowest part of a wave form between successive crests. Also, that part of a wave below that part of a wave below Stillwater level. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)
Lowest part of a wave form between successive crests. Also, that part of a wave below that part of a wave below Stillwater level. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)