Pohoiki in the Future Perfect Tense

[MyManao]

MyManao - Interestingly, with the new notch (the newly exposed bay) cut into the pile of debris I suspect the ocean may clear out the rest in the next few years without anymore help..

It could also go the other way - when the channel was open, you could see new sand and rock deposits being made on the back/mauka side of the swimming hole. If the channel stayed open, the material may have just filled in the boat ramp area completely, at least in the short term. Regardless, it seems like it's largely outside our control (or at least exceeds the available budget) - have to wait and see what the real powers that be decide to do in the coming years.

You know, when we had this discussion I was thinking of the continuously changing landscape and imagining that the surf, the tidal surges, would be a strong influence on the way things evolve. That water coursing in and out of the bay could not help but take a little debris away with each passing surge.. and over time the sand will be carted off.

Of course, as has been seen over the eons, all black sand beaches are transitory. They are created by lava flows that once stopped subject them to the forces of erosion. But those forces may not be immediate, and maybe, with the changes unleashed by the dredging, what we are seeing may be short term changes, not just the acceleration of the long term carting off of the sand.

So, with your comment I took to watching the webcam that HVERI has set up at the Hale's hale and hoped that over time I could gain a more nuanced understanding of what is happening. And, as a result, I've put together the following montage of imagines showing the changes since before the dredging began up to about a week ago when the movement that was pretty steady appears to have come to rest... 



Note that the above images are cropped from the larger so as to focus on the area of change. Also, the quality of the earlier images, taken as screenshots from Youtube vids, aren't as sharp as the later, but still they serve to show the evolution over time. Also note that the perspective, from the Hale's hale, isn't the best angle for a full appreciation of the changes, but anyone who has spent time at the park will be able to appreciate them..