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.
Answer by Ella 93. Confidence votes 50. Sea walls are a form of hard engineering coastal protection. A man made wall structures built on or near the shoreline with the purpose of absorbing storm wave energy to protect the land or an area of water behind the wall from erosion.However, a seawall may not protect a coast from erosion in the long run.here is no special name for a curved sea wall. These sea walls are  simply labeled as curved and serve the purpose of reflecting a  waves energy back to the sea.