Ground clutter is a radar term that basically means a bunch of noise, or cluttered returns, that occurs when you point the radar down at the ground (like for a radar patrolling aircraft). The terrain reflects radar and you get a big blur.
Today, ground clutter is not a problem because we have great computers that can filter out the static ground returns, and only show the moving returns. However, I want to ask if ground clutter needs to be filtered when over the ocean.
The ocean is pretty flat, but always has at least some small waves. Do small waves produce any ground clutter? In other words, does ground clutter exist over the ocean during calm seas?