Another high tide day
Posted by Daniel H on August 12, 2021, 7:39 am-----------------------Re: Another high tide day
Posted by Mark S. on August 12, 2021, 10:22 am, in reply to "Another high tide day"-----------------------Re: Another high tide day
Posted by Daniel H on August 12, 2021, 10:40 am, in reply to "Re: Another high tide day" Edited by board administrator August 12, 2021, 11:11 am
The waves are coming from the South so Boca should be much more effected than this side of the beach. With hurricane Enrique, we were doing pretty good until the waves came from the West, a completely different scenario. The tide boards performed perfectly over the past couple of days, and if Kevin was the only storm it would be a total success. Edit: I just went to dump the office trash and saw that the ocean made it through the malicon all the way to the street last night! But we have Linda back to back, and now there is about a foot of sand on the beach side of the tide boards. That makes the waves go over the boards and trap the water on this side of them until it slowly drains out. Which is another situation but again not critical. Its so rare to have back to back storms like this but what I should of done was have a tractor come and take away the top one foot of sand so the tide boards would be starting over (but I didn't). Anyway, I am done preparing and will just sit and watch for the next day or so. I don't see my having to leave the office for this one. | -----------------------Another not so high tide day
Posted by Daniel H on August 12, 2021, 6:20 pm, in reply to "Re: Another high tide day"-----------------------Re: Another not so high tide day
Posted by Daniel H on August 13, 2021, 9:32 am, in reply to "Another not so high tide day"
Actually the subject of the original post is not wrong, the ocean did come all the way up to the tide boards again last night. Now when the ocean recedes its noisy with the sound of rocks (not quiet when its only sand). The beach is changing again. | -----------------------The waves hitting Islote La Pajaros and Punta Hermanos
Posted by Daniel H on August 13, 2021, 11:19 am, in reply to "Re: Another not so high tide day" Edited by board administrator August 13, 2021, 11:27 am
Just a bit more on this There is some big wave action going on just outside the Bay of Tenacatita as I can see some big splashes from waves against Islote La Pajaros and Punta Hermanos (the rocks at the tip of the Bay). When hurricanes are in full force I have seen waves splash up as high as Islote La Pajaros and the horizon gets wavy from the big swells out there. Click on map for bigger version. Sorry don't know the source of this map, would love to give credit to them.
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Posted by Tim Edwards on August 13, 2021, 7:21 pm, in reply to "Re: Another not so high tide day"
Hello D: How far up onto my patio is the water going? | -----------------------Re: Another not so high tide day
Posted by Daniel H on August 13, 2021, 9:20 pm, in reply to "Re: Another not so high tide day" Edited by board administrator August 13, 2021, 9:34 pm
Jesus T, you got probably the highest patio on the beach. This is (almost) a trip from home to take this photo, you'll have to ask your property manager for more into. My guess is very little if any. This is how much sand got onto Loka Laura's (they cleaned it today) quite a bit. And check out that rock pile behind! That pile is higher than the tides were today, I (and others) wonder just what the #### is happening out there in the ocean to make that happen? Here is a shot to the right. People who say nothing changes in La Manzanilla are full of shit (actually I don't know anyone who says that but...) Life is good. Edit: Oh and just noticed the moon this evening, like 4 days after luna delicada. Where the #### have I been that I haven't even thought of her? I gotta get my priorities straight!
| -----------------------The ocean is pulsing
Posted by Daniel H on August 14, 2021, 12:34 pm, in reply to "Re: Another not so high tide day"
Strange pulsing in the tides, sand is being moved out to sea quite rapidly. Interesting to watch the changes. | -----------------------How the rocks appear
Posted by Daniel H on August 14, 2021, 2:23 pm, in reply to "The ocean is pulsing"
This mid day I watched a pile of rocks appear right out of the sand. There was no moving of rocks just moving of sand, lots of it. The rocks were just covered by the sand. Its hard to imagine looking at the pile of rocks that the sand around the pile was that much higher. Without anything to compare it to it really is hard to tell the height of the sand that is there. I know the ocean moves the rocks around but this time the process happened so quickly I could see at least one of the methods it uses in action. Sorry this explanation is so long, I didn't have time to make it shorter. MT | -----------------------Re: How the rocks appear
Posted by Stephanie on August 15, 2021, 8:47 am, in reply to "How the rocks appear"
So what is moving and shifting in front of you today! I love this close inspection of how things change at the beach daily! Hourly… | -----------------------Re: How the rocks appear
Posted by Daniel H on August 15, 2021, 9:21 am, in reply to "Re: How the rocks appear" Edited by board administrator August 15, 2021, 9:54 am
Well.....I am back to being ignorant of how it works. Sitting where I was last night (at a level that didn't change much) the beach drops down about one foot directly in front of me. But using line of sight from the top of the rock pile I mentioned it would mean that out say 20 yards there is about 8 to 10 feet of sand that is gone! It may be true but I think there is something else I am missing (as usual). Edit: One thing of note is that the waves are back to breaking out where they normally do and not right on shore as they have been doing since hurricane Enrique. Below is how it looks this morning, rocks where sand was last night. No big deal it changes all the time. There have been times where the beach was totally rocks at sunset and totally sand (literally no rocks) the next morning and vice versa from just a high tide (not a storm). Its like a hundred tractors came in and worked all night to move all the sand, and that is about what it would take to make that change. The ocean is very powerful. Also as I mentioned I am not alone in the pondering of what the #### is going on, how it happens. Sand is a valuable commodity, there are places in the world where they steal sand from each other and places where man made changes have eliminated the sand completely. https://www.propublica.org/article/how-famous-surfers-and-wealthy-homeowners-are-endangering-hawaiis-beaches I would love it if someone really got interested in what is happening with sand in the Bay of Tenacatita. They could start making visual notations and probably get some satellite data, it just could be a study that leaders could use to very possibly save our beach one day.
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Posted by Stephanie on August 15, 2021, 11:52 am, in reply to "Re: How the rocks appear"
Came by for a viz..alas..no one home so made myself comfortable and watched the shifting rocks and sand! Ciao! | -----------------------you can see the sand in the ocean
Posted by Daniel H on August 15, 2021, 1:18 pm, in reply to "Re: How the rocks appear"
Sorry I went to Chantily Mar for breakfast, nice there today. Back to this line of tide/wave/sand observations. The ocean is calm today and you can see the bands of sand out in the ocean. At certain times its pretty common to enter the ocean, hit a ditch and then a yard or two further out sand again. In times past I have seen it to be waist deep (sometimes less) 200 yards or more off shore (way out) i.e. lots of sand out there just waiting for a current or some other change to level it all out to what in the winter season we call normal.
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Posted by Scott on August 16, 2021, 1:09 pm, in reply to "you can see the sand in the ocean"
I remember an assignment in college physics that was darn close to your question, Daniel. Why does a beach change and how could you calculate and predict the dynamics? (I think the specific disaster was a new jetty that made a beach 25 mikes away disappear) The variables are almost infinite and will drive you crazy. I remember learning that not all sand is the same size, shape, density, or weight. Most beaches have composite sand making the question unique to a particular beach. Each factor will affect beach dynamics, and worse, change one particle characteristic and the others behave differently. Some sand also conglomerates, while other types do not. Then there is shape of the littoral cell to consider. Then we had to calculate wave fetch, period, volume, and velocity, and then adjust those numbers for tidal influence, then try and calculate the effects. Change one or more of those factors and beach dynamics change again. Then air pressure, temperature, wind, proximity of other bodies of water, and even solar heating can influence beach dynamics. Specifically, throw in the rock factor at la Manzanillia, and well … there’s you Ph.D. dissertation. So short version, if you seek one single explanation for why the beach changes as it does, that’s the wrong framing. Rather the question should be if a variable changes, what happens? And if two variables change, do you get something new that could not happen with a single variable change and so on and on and on… Thanks for making me think a bit! | -----------------------Re: you can see the sand in the ocean
Posted by Ron Smith on August 16, 2021, 1:36 pm, in reply to "Re: you can see the sand in the ocean"
I just finished "How to Read Water: Clues and Patterns from Puddles to the Sea" by Tristan Gooley. It is an amazing look at how water behaves. | -----------------------Re: you can see the sand in the ocean
Posted by Daniel H on August 16, 2021, 1:39 pm, in reply to "Re: you can see the sand in the ocean"
Your welcome. I am assuming college was some time ago? Like back before algorithms and neural networks i.e. Artificial Intelligence. I am sure it would still be a daunting task tanking sand samples and many other things. I am also fairly sure that there is information from satellites of the currents, and possibly even the height of the sand in a database someplace. It would be taking those numbers and putting them through a modeling program to get some idea of what is happening in our Bay. Or even better find a college teaching the course (like the one you took) and get them to take the Bay of Tenacatita on as a project | -----------------------Re: you can see the sand in the ocean
Posted by Carol Lopez on August 16, 2021, 3:01 pm, in reply to "Re: you can see the sand in the ocean"
What an interesting thread! I’m so glad I haven’t missed it. All the talk about Science lately, and here we have it from a completely different perspective. Can’t help thinking - how would you set up a random control trial for beaches if you wanted to change the shape of one? How would you prove your hypothesis? Anyway, now I can stop asking whether the water brings in the rocks to cover the sand, or does it bring in the sand to cover the rocks? Thank God I can think about something else! | ----------------------- |
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