It depends which NCIS you are referring to. CBS broadcasts NCIS, NCIS: Los Angeles, and NCIS: New Orleans. NCIS is aired on Tuesdays 8/7c. NCIS: Los Angeles is aired on Mondays 10/9 c. NCIS: New Orleans is aired on Tuesdays 9/8c.
Whereas groins are built to change the effects of beach erosion, jetties are built so that a channel to the ocean will stay open for navigation purposes. They are also built to prevent rivermouths and streams from meandering naturally.
The purpose of a sea wall is to provide a barrier between the sea and land (specifically areas that are heavily populated). This provides protection against sea actions such â¦ as tides and waves.ea walls work by acting as deflectors which help to break the force of incoming waves. The power of the waves is weakened before they make landfall and, by reducing the force â¦ of the sea in this way, sea walls help to protect the beaches, cliffs and harbours from erosion.