The music is by Thomas Newman. It may be from the tv drama "Angels in America." You are correct that it is unusually appropriate in a matchup with the video content.
I could definitely watch an hour segment on PBS describing more about this. Start with when the strait became a strait, as I believe it used to be closed(Pangaea), then follow with this video and then a closing about how it effects the Mediterranean Sea now and how it has been affected in the past!!! Or something like that! Brilliant! Will watch again to try and understand a bit more. Thank you for this video all who are responsible!!!
I am always fascinated by what happens under the surface of water; waves, animals, geological formations, etc. so this was a treat for me. Thanks for posting.
I used to work in Gib, the live across the road in La Linea because it was cheaper. I don't know anything about the waves between Gib & Africa. But this presentation has visually shown & endorsed one thing. Apparently, it has been an ambition between Europe (Spain) & Africa (Morocco) to build a tunnel between the two countries/continents. However (and when I was in region & this topic came up), people always keep on saying it was IMPOSSIBLE because the sea bed was too deep. This presentation (from 0:35 onwards) endorses that talk & indeed, stumbling block. Fantastic presentation & very interesting information regarding that region of the world.
Thus seems to explain why the waves on the southern coast of Spain act so strangely. I've seen this in Malaga. Small, short, but very powerful and insistent waves. And cold, too, considering the area. If you're not prepared for this, the waves can knock you over and prevent you from standing up again because they are only 2 or 3 seconds apart.
I am from that area of the strait on the side of Morocco, non locals often drown and die in this area because this phenomenon is unknown and people who are not familiar get carried away with the strong currents, especially in the wide open beaches in Tangier that aren't shelves by cliffs or mountains.
Very interesting phenomenon! I wonder what initially motivated research into this? Was it driven by 2:00 satellite observation of the surface signature? Also, as a numerical analyst myself, I would be interested to know what sort of mathematical models and solvers were used to create the simulation. I assume it probably includes partial differential equations - perhaps Navier-Stokes? Were any papers published on this work?
Thank you Poly! Internal waves in the Strait of Gibraltar are a very well known phenomenon by the local fishermen. The surface signature of the waves train can be clearly detected from a boat. Our one is one of the most accurate modeled description of the physical nature of the phenomenon and it is made with a high resolution numerical model (this is a version of the MIT general circulation model adapted to this very complex region) capable of solve a parameterized version of the Navier-Stokes equations.
Interesting work, I wonder if this phenomenon could be harnessed for power production? It is reliable, regular and involves a tremendous amount of energy.
Thank you. Actually we wrote a paper on a study of the reliability of exploiting the tidal current power to obtain clean and renewable energy. Have a look at it oceano.uma.es/pdfpub/2014Energy%20of%20.pdf
I believe I recall plans under consideration in the early 1970s to build a dam across the strait, to use for power generation. It never got further than the concept stage, I believe. See "Atlantropa" for a 1920s version! On the whole, I'd just put solar panels in the deserts that border the Med - much easier to service and much more reliable than anything immersed in salt water.
Falbert Forester ...you sound like an engineer. Would it be possible to build a series of dams on a larger river or does the weight ,not speed,of water turn the dynamos?
i believe not.rogue waves happen when two different wave currents get their frequencies in syinc,meaning they are going in similar direction and overlay each other until both get synchronized generating that one,big wave-rogue wave...but science haven't said last word on this so maybe they should add your question in equation..
literally *every* wave influences the formation of rogue waves. They are often just a convergence of otherwise normal waves in a specific location that adversely affects us.
Within the past 2 weeks I watched a generally informative video which asserted there was no water or salinity exchange between the Med and the Atlantic. I immediately thought that was wrong because Jacques Cousteau proved that decades ago with a sail lowered deep into the water of the straits, which towed his boat right through the strait! They didn't even mention Cousteau. I was perplexed and a little angry at this. Cousteau's experiment pretty much proved the point. Now, we have this hugely scientific work describing the actual flow patterns-- thank you, Gofima UMA!
The movie, Das Boot, brought my attention to the flows in the Strait(s?) of Gibraltar and how the submarines deal with them. Thanks for the posting. Good on ya mates.
What an amazing study. Just imagine what devastation would result if the shape of any part of the strait were to be changed. Tide forces would create massive tsunami waves that could be very damaging to the shores inside the Med. What a fun idea to play with the shape of the ocean flood or sides of the strait and watch what happens.
I come from a video that said Black Sea is dying due to lack of water streaming and will explode in relatively nearby future. Gibraltar is 14 km's wide and Mediterrenian Sea gets streaming salty cold water from the ocean but Black Sea is locked by 2 very narrow straits and absorbing Danube's fresh water streaming constantly which then hangs on salty water and poisons the sea life drastically. No sign of life for hundreds of meter on its depths.
Great depiction of current (no pun intended) knowledge. I am in awe of what can be measured and depicted through modern techniques. And it is nice to watch, well done!
In ancient times, the Mediterranean was a dry basin blocked by a landmass at the straight. Something caused it to breach, causing the largest waterfall in the world until the sea filled.
Right! It is quite complex from a technical point of view, but undoubtedly it would worth the try. We made some studies in the past on the optimization of the choice of the most reliable place to install a tidal turbine. oceano.uma.es/pdfpub/2014Energy%20of%20.pdf
Yap, the strait of Gibraltar separates Spain and Africa! When you think only uneducated people think about Africa as one county, and I experienced it myself several times. But the bad thing is when most people think that's what it is! Poor Africa...
I was told that the Mediterranean has been sealed up numerous times at Gibraltar creating a dry lake which then floods again in a vast waterfall each time with unimaginable ferocity.
Yes! It was a geological period called Messinians and the Mediterranean closure event was called Messinian Salinity Crisis: en.wikipedia.org/wiki/Messinian_salinity_crisis
Extraordinary. Considering the many sieges that have taken place in Gibraltar over the centuries, I wonder how these tides affected fleets operating to support or besiege that place. Would the internal tides caused by the Camarinal sill slow down the progress of sailing ships on the surface? Were there certain times of the day when it was best to catch both wind and internal tide?
Interesting comment! Actually I think that internal tide cannot affect the sailing very much. They manifest as very weak ripples on the surface. Conversely the strong inflowing current does it! And i'm absolutely sure the ancient sailors knew it and took into account when sailing out from the Mediterranean.
If we remove the sill somehow, will the waves stop as well? How will this affect the flow of water through the Strait every tide cycle and what effect (water rise/fall or changes in water level) it may have on the Mediterranean Sea in general afterwards?
Wow! What an interesting comment! YES! The removal of the sill would include the stop of internal waves formation. The flow in the strait would be characterized by a reduced mixing between the two waters, resulting in a saltier and denser Mediterranean water flowing out to the Atlantic Ocean and a fresher and warmer Atlantic water flowing into the Mediterranean. Subsequently the density gradient, which drives the own exchange, would increase and the flow itself too. I'm not sure on what would occur to the Mediterranean Sea...should the inflowing water be fresher and warmer, the sea level could rise correspondingly for steric expansion, but it is only a speculation. Thank you for your comment!
Nop! They are "internal" waves...vertical oscillation of the interface between the two water masses. The corresponding height of the traveling front at surface is of order of centimeters. The text in the video explains it :)
so its and narrow and it has rocky obstacles wich change the whole dynamics . any obstacle will surely be worn down over time as we can see in mountain shapes , why is this still like this , is it a changing process ? a rock surely wont hold out for thousands of years with the huge amount of waterflow crashing into it ?
Well..actually not. Atlantic is colder than Atlantic in general but not precisely in the Strait. Moreover, the main driving factor here for density difference is salinity, not temperature
Maybe...It is quite complex from a technical point of view, but undoubtedly it would worth the try. We made some studies in the past on the optimization of the choice of the most reliable place to install a tidal turbine. oceano.uma.es/pdfpub/2014Energy%20of%20.pdf
Interesting Video. I Never gave it a second thought about the water distribution between the Atlantic (really salty) and the Med. ( salty but not as salty as the Atlantic ) . Tha is! Gives me something else to look up !! Lolol
Not necessarily. The waves known as tsunamis need to be forced up by shallow terrain under the water, in order to shorten their wavelenth, attain their height, and do damage onshore. A tsunami in the middle of the ocean might only have a 1m to 2m rise. 300m might be the shallowest point known in the straight, but that's still not very shallow. I'd imagine, though, that the north and south shores see some odd, difficult to predict effects as a little of this wave energy spills up onto the shores. Close to the edges of where the waves are started, they'll be slowed by the shores and retarded as energy is rubbed away by friction with the sea bed. I'm curious about the sedimentation patterns in and around the strait now...
Not this case. These are internal waves, that is vertical oscillation of the interface, not the surface. Actually the external signature of internal waves in the strait are very small surface waves that propagate towards the Mediterranean sea. Tsunami are quick vertical shift of the whole column, which can be few tens of cms in open ocean and than increase hugely when the column water starts having a height comparable with the wavelength (they say the wave feels the bottom).
this can happen any where if the construction engineer decide to put submersible obstacle to let earth water pumping pulsing creating greatest wave season thanks for your information don't let other knows
I was once told “try and learn something new everyday” .....well that was a really absorbing way of achieving my goal today, great video.
Thank you Niknoks! :)
The music was great for meditation too, my wife who was sitting near me asked if I was listening to a meditation music 😀
Beautiful presentation, and finally, music that supports rather than distracts. Kudos!
The music is by Thomas Newman. It may be from the tv drama "Angels in America."
You are correct that it is unusually appropriate in a matchup with the video content.
agreed
Worked 18 months dredging for Tanger Med 2 port...currents were crazy and changing direction almost every hour, especially near coast as we were
I could definitely watch an hour segment on PBS describing more about this. Start with when the strait became a strait, as I believe it used to be closed(Pangaea), then follow with this video and then a closing about how it effects the Mediterranean Sea now and how it has been affected in the past!!! Or something like that! Brilliant! Will watch again to try and understand a bit more.
Thank you for this video all who are responsible!!!
Thank you!
If someone is curious about the music, here you go:
April by Thomas Newman
:D I *thought* that sounded like part of the American Beauty soundtrack.
It’s the song from Revolutionary Road- awesome movie!
Thank you very much
His style I seem to recognise.
www.mixcloud.com/matejlukac/revolutionary-road-ost-thomas-newman/
www.mixcloud.com/JONATHANSTUARTBARKER/ I've used some of his music in my filmmusic mixes.
I am always fascinated by what happens under the surface of water; waves, animals, geological formations, etc. so this was a treat for me. Thanks for posting.
Thanks to you!
This has to be one of the most beautiful videos I've seen in my life. Thank-you from Canada.
Thank you!
Not to sound rude but you haven't seen many videos have you? O_o
He said one of .
This is what the internet can do at it's best. Thank you.
It was uploaded on my birthday ! ( 9 years ago )
That makes it even better.
Wow that's perfect visuals and really helps us understand what happens in the straits. Thank you.
Thank you!
Working on cruise ship, we always feel whenever we're approaching or leaving Gibraltar.
Gracias por la explicación detallada y excelente calidad de imágenes. Me encantó… 🤙🏼
awsome. we need tecnology for this. we do not need technology for a new iphone every year. we need tecnology for science!!
I used to work in Gib, the live across the road in La Linea because it was cheaper. I don't know anything about the waves between Gib & Africa. But this presentation has visually shown & endorsed one thing. Apparently, it has been an ambition between Europe (Spain) & Africa (Morocco) to build a tunnel between the two countries/continents. However (and when I was in region & this topic came up), people always keep on saying it was IMPOSSIBLE because the sea bed was too deep. This presentation (from 0:35 onwards) endorses that talk & indeed, stumbling block. Fantastic presentation & very interesting information regarding that region of the world.
I wonder what changes in dynamic would be if the Camarinal sill didnt exist anymore.
this was mesmerizing to watch!
Thank you!
Thus seems to explain why the waves on the southern coast of Spain act so strangely. I've seen this in Malaga. Small, short, but very powerful and insistent waves. And cold, too, considering the area. If you're not prepared for this, the waves can knock you over and prevent you from standing up again because they are only 2 or 3 seconds apart.
I am from that area of the strait on the side of Morocco, non locals often drown and die in this area because this phenomenon is unknown and people who are not familiar get carried away with the strong currents, especially in the wide open beaches in Tangier that aren't shelves by cliffs or mountains.
In this era this is how we should be instructed. It is so much more understadable the whole situation rather than a draw on a sheet
Very interesting phenomenon! I wonder what initially motivated research into this? Was it driven by 2:00 satellite observation of the surface signature? Also, as a numerical analyst myself, I would be interested to know what sort of mathematical models and solvers were used to create the simulation. I assume it probably includes partial differential equations - perhaps Navier-Stokes? Were any papers published on this work?
Thank you Poly! Internal waves in the Strait of Gibraltar are a very well known phenomenon by the local fishermen. The surface signature of the waves train can be clearly detected from a boat. Our one is one of the most accurate modeled description of the physical nature of the phenomenon and it is made with a high resolution numerical model (this is a version of the MIT general circulation model adapted to this very complex region) capable of solve a parameterized version of the Navier-Stokes equations.
Interesting work, I wonder if this phenomenon could be harnessed for power production? It is reliable, regular and involves a tremendous amount of energy.
Thank you. Actually we wrote a paper on a study of the reliability of exploiting the tidal current power to obtain clean and renewable energy. Have a look at it oceano.uma.es/pdfpub/2014Energy%20of%20.pdf
I made the same comment before I read yours. Great minds think alike.
I believe I recall plans under consideration in the early 1970s to build a dam across the strait, to use for power generation. It never got further than the concept stage, I believe. See "Atlantropa" for a 1920s version! On the whole, I'd just put solar panels in the deserts that border the Med - much easier to service and much more reliable than anything immersed in salt water.
Falbert Forester ...you sound like an engineer. Would it be possible to build a series of dams on a larger river or does the weight ,not speed,of water turn the dynamos?
ThatCrazy Drunk ...these would be superbly engineered undersea turbines that take advantage of the powerful, reliable tidal currents.
Live nearby, have heard about how difficult is crossing strait in a sailing ship. This video explains well wy. Thanks
I liked that a lot. Thank you for the great work, it is worth it.
This is wonderful in all respects...
Wonder if these underwater waves could influence the formation of rouge waves?
Oops - rogue waves.
Kamelhaj
of course!
everything is waves.....
i believe not.rogue waves happen when two different wave currents get their frequencies in syinc,meaning they are going in similar direction and overlay each other until both get synchronized generating that one,big wave-rogue wave...but science haven't said last word on this so maybe they should add your question in equation..
Kamelhaj
You mean "ROGUE" wafes.???
literally *every* wave influences the formation of rogue waves. They are often just a convergence of otherwise normal waves in a specific location that adversely affects us.
beautiful music and animation....
the Universe is electrical.... Life is structured water....
Thank you!
Within the past 2 weeks I watched a generally informative video which asserted there was no water or salinity exchange between the Med and the Atlantic. I immediately thought that was wrong because Jacques Cousteau proved that decades ago with a sail lowered deep into the water of the straits, which towed his boat right through the strait! They didn't even mention Cousteau. I was perplexed and a little angry at this. Cousteau's experiment pretty much proved the point. Now, we have this hugely scientific work describing the actual flow patterns-- thank you, Gofima UMA!
Thank You! :)
Wow.Wonderful.
Can't believe it was uploaded 12 y ago
Very interesting stuff and awesome background music! A lot of people should learn from you!
Thank you!
The answer I was looking for. Thanks!
Thank you too!
The movie, Das Boot, brought my attention to the flows in the Strait(s?) of Gibraltar and how the submarines deal with them. Thanks for the posting. Good on ya mates.
It's 3 in the morning. I'm sleepless and watching a video on wave dynamics in the Strait of Gibraltar.
What is wrong with me?
nothing bro😉
Me 2 exactly at the same time
Nothing that bad. You just need a woman to share your bed and your life with.✔😜
Nothings Wrong with you, besides you not being able to sleep. You just needed to watch some wave action to bore I mean lull you to sleep. LOLOLOLHAHA
The best water simulation that I have watched.
Thank you!
Big thank you sharing this. Its amazing for me to see it. I didnt know this
Thank you!
What an amazing study. Just imagine what devastation would result if the shape of any part of the strait were to be changed. Tide forces would create massive tsunami waves that could be very damaging to the shores inside the Med. What a fun idea to play with the shape of the ocean flood or sides of the strait and watch what happens.
Perfect presentation 👌
Excellent research team - well done!
Thank you!
I come from a video that said Black Sea is dying due to lack of water streaming and will explode in relatively nearby future. Gibraltar is 14 km's wide and Mediterrenian Sea gets streaming salty cold water from the ocean but Black Sea is locked by 2 very narrow straits and absorbing Danube's fresh water streaming constantly which then hangs on salty water and poisons the sea life drastically. No sign of life for hundreds of meter on its depths.
Great depiction of current (no pun intended) knowledge. I am in awe of what can be measured and depicted through modern techniques. And it is nice to watch, well done!
Thank you!
This is fantastic information! Thank you
Thank you!
No wonder we had so much trouble getting U-boats through there.
Very interesting study with excellent graphics.
Thank you!
In ancient times, the Mediterranean was a dry basin blocked by a landmass at the straight. Something caused it to breach, causing the largest waterfall in the world until the sea filled.
mediterranean sea: breath
atlantic ocean: here take some cold water
That was cool.
With reliable powerful tides, why don t we harness this energy?
Right! It is quite complex from a technical point of view, but undoubtedly it would worth the try. We made some studies in the past on the optimization of the choice of the most reliable place to install a tidal turbine. oceano.uma.es/pdfpub/2014Energy%20of%20.pdf
Frank Joseph 6
Gofima UMA I'm really saddened by the pesky politics that won't allow wonderful engineering like this to come into being...
Hi there, anyone knows where the music is from? Ooops, just found the note.
Yap, the strait of Gibraltar separates Spain and Africa! When you think only uneducated people think about Africa as one county, and I experienced it myself several times. But the bad thing is when most people think that's what it is! Poor Africa...
I was told that the Mediterranean has been sealed up numerous times at Gibraltar creating a dry lake which then floods again in a vast waterfall each time with unimaginable ferocity.
Yes! It was a geological period called Messinians and the Mediterranean closure event was called Messinian Salinity Crisis: en.wikipedia.org/wiki/Messinian_salinity_crisis
Perhaps its going to happen next year due to global warming! I read it on the Internet.
Andy harpist
Remember the biblical flood, Noah, etc.????
yes indeed mr r. I see no reason why the two cannot be connected
Extraordinary. Considering the many sieges that have taken place in Gibraltar over the centuries, I wonder how these tides affected fleets operating to support or besiege that place. Would the internal tides caused by the Camarinal sill slow down the progress of sailing ships on the surface? Were there certain times of the day when it was best to catch both wind and internal tide?
Interesting comment! Actually I think that internal tide cannot affect the sailing very much. They manifest as very weak ripples on the surface. Conversely the strong inflowing current does it! And i'm absolutely sure the ancient sailors knew it and took into account when sailing out from the Mediterranean.
Thanks! I've been looking at archival sources for Royal Navy operations around Gibraltar in the 1730s, and they only mention the wind.
mmmhh...I'm really sure they were used to take into account the surface current...it reaches 4-5 knots every tidal cycle...
Imagine WW2 times when German submarines had to evade British patrols and enter the mediteranian see.
Edward Snowden That,s before sonars were introduced to servis. Destroyers had just listening devices.
Interesting work.
Thank you!
Fascinating. Thank you!!
Thank you!
Great little video...makes one want to know more...thanks
Thank you!
Thanks a lot for this amazing modeling ! does the same exist for the Dover Strait ?
Outstanding.
Thank you!
This makes me think about using that energy for something
wow. fascinating.
thanx for sharing. ❤
If we remove the sill somehow, will the waves stop as well? How will this affect the flow of water through the Strait every tide cycle and what effect (water rise/fall or changes in water level) it may have on the Mediterranean Sea in general afterwards?
Wow! What an interesting comment! YES! The removal of the sill would include the stop of internal waves formation. The flow in the strait would be characterized by a reduced mixing between the two waters, resulting in a saltier and denser Mediterranean water flowing out to the Atlantic Ocean and a fresher and warmer Atlantic water flowing into the Mediterranean. Subsequently the density gradient, which drives the own exchange, would increase and the flow itself too. I'm not sure on what would occur to the Mediterranean Sea...should the inflowing water be fresher and warmer, the sea level could rise correspondingly for steric expansion, but it is only a speculation. Thank you for your comment!
Beautiful simulations!
Thank you!
Very interesting, thanks!
The Germans figured that out long time ago , that’s how they got the submarines thru in both direction without using the motor
What adverse effects does this have on navigation?
None. These waves occur at the interface and present as only few cm at surface
Brilliant work.👍
Thank you!
100 Meters AMPLITUDE? Did I read it correctly?
How many people have swam this?
That is fascinating.
Yeh, I dig the creepy music👍
I'm sure there must be dubious packages at the bottom as well ..!
That looks a lot deeper than I thought for a suspension bridge to cross it
That's why Dönitz declared U-Boot were bottled in Mediterranean
i dont know whats going on with this area its getting so many earthquakes
Amazing job.
good video, very interesting, 1:58 the photo from NASA reflects it perfectly ..
Thank you!
max e'tutta colpa tua se sono qui
Does it mean that during tide it is extremely dangerous to cross the strait? I mean, WAVES OF 100m ?!?!?!
Nop! They are "internal" waves...vertical oscillation of the interface between the two water masses. The corresponding height of the traveling front at surface is of order of centimeters. The text in the video explains it :)
I loved d video as well as the background score taken from The Revolutionary Road.
Thank you!
How high are the waves? Enough to surf?
Nop! :) They are internal waves, while their corresponding oscillations of the free surface are only few centimeters.
so its and narrow and it has rocky obstacles wich change the whole dynamics . any obstacle will surely be worn down over time as we can see in mountain shapes , why is this still like this , is it a changing process ? a rock surely wont hold out for thousands of years with the huge amount of waterflow crashing into it ?
you should be able to power europe with that current
I surprised myself, very interesting, thanks
Thank you!
Underneath bases of England submarines overthere
but atlantic water is colder than med. water...it should be deeper ??
Well..actually not. Atlantic is colder than Atlantic in general but not precisely in the Strait. Moreover, the main driving factor here for density difference is salinity, not temperature
What song is this???
Could we use it as energy source?
Maybe...It is quite complex from a technical point of view, but undoubtedly it would worth the try. We made some studies in the past on the optimization of the choice of the most reliable place to install a tidal turbine. oceano.uma.es/pdfpub/2014Energy%20of%20.pdf
magnificent work thank you
Thank you!
Interesting Video. I Never gave it a second thought about the water distribution between the Atlantic (really salty) and the Med. ( salty but not as salty as the Atlantic ) . Tha is! Gives me something else to look up !! Lolol
Wicked Cool 😎
I always suspected that but could never prove it.
Thanks.
Awesome.
Thank you!
great music choice 🙄
A 100 meter amplitude subsurface wave should create a tsunami, right?
Not necessarily. The waves known as tsunamis need to be forced up by shallow terrain under the water, in order to shorten their wavelenth, attain their height, and do damage onshore. A tsunami in the middle of the ocean might only have a 1m to 2m rise. 300m might be the shallowest point known in the straight, but that's still not very shallow. I'd imagine, though, that the north and south shores see some odd, difficult to predict effects as a little of this wave energy spills up onto the shores. Close to the edges of where the waves are started, they'll be slowed by the shores and retarded as energy is rubbed away by friction with the sea bed. I'm curious about the sedimentation patterns in and around the strait now...
Not this case. These are internal waves, that is vertical oscillation of the interface, not the surface. Actually the external signature of internal waves in the strait are very small surface waves that propagate towards the Mediterranean sea. Tsunami are quick vertical shift of the whole column, which can be few tens of cms in open ocean and than increase hugely when the column water starts having a height comparable with the wavelength (they say the wave feels the bottom).
this is really cool
Thank you!
I wonder how a submarine could detect this kind of wave.
And how if it can not... and got hit
this can happen any where if the construction engineer decide to put submersible obstacle to let earth water pumping pulsing creating greatest wave season thanks for your information don't let other knows
They should put turbines on this thing.
Beautiful
Thank you!
Mediterranean water is heavier with salt so mixing doesn’t happen easily.
thus, Ulisses never left the Mediterranean sea ...
God that's deep!
that’s what she said
looks like breaths or heart beats
Yes! The tidal breath! :)