4 upvotes, 1 direct replies (showing 1)
View submission: Earthwork fishing infrastructure on north sentinel island?
That’s exactly what I suspected you were looking at.
Those are what I described, a result of the flow of water. Look at the labeled photo in this link[1]. See those areas marked as ‘sand bars’? What you’re looking at is a variation of this same structure.
1: https://beachsafe.org.au/surf-safety/ripcurrents
You get a thing called beach cusps in many areas, around 19 minutes into this video of beach morphology they’re discussed[2]. Depending on the specifics of the local environment they can take on a variety of shapes. Usually they’re more pointed at the end[3], but in an area with coral, lagoons, uplift, a sea floor that doesn’t just slope down evenly, etc it can get complicated and other shapes can emerge.
2: https://www.youtube.com/watch?v=6_RSalJ1Zo8
3: https://coastalcare.org/2016/12/beach-cusps-shoreline-symmetry-by-gary-griggs/
Comment by Kekero63 at 29/01/2025 at 00:15 UTC
3 upvotes, 1 direct replies
Ok thank you! It was so nice of you to answer. I was wondering why this wasn’t talked about, thank you for clarifying.