Cote d'Azur Sea Temp - Post Script

[EME]

Cote d\'Azur Sea Temp - Post Script

Today the surface sea temperature reported as 22-24 degrees in Cannes. I don't understand how it could rise again so fast from 16 degrees (sunday) given that air temperature has only been 28/29 and sun's intensity is obviously less.

Incidentally avaerage temp of med at all depths is allegedly 16 ..i.e significantly warmer than oceans of the World.

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[tcm]

Re: Get stuffed

oh, very interesting, crappy cold weather here yer blimmin grr grr.

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[jfm]

Re: Cote d\'Azur Sea Temp - Post Script

Aswade please explain! I cant understand this one (unless the latent heat theory is now working in reverse cycle mode....)


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[EME]

Re: Get stuffed

Yes, but I have to be in Londinium tomorrow... now where are those long trousers?

Thought I might look for a new engine for



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[jfm]

Re: Cote d\'Azur Sea Temp - Post Script

Aswade please explain! I cant understand this one (unless the latent heat theory is now working in reverse cycle mode....)

 

[jfm]

busted forum

The forum's bust. Lots of double posts. Bin happenin all day

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[jfm]

busted forum

The forum's bust. Lots of double posts. Bin happenin all day

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[EME]

Re: busted forum

But B1 managed to post 3 times!!

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[tcm]

Re: Get stuffed

we are at the pow from 6.

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[jfm]

Re: Get stuffed

termorrer?

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[tcm]

shock life-changing stress

yes, termorrer, it's a forum thing. I have asked my barrister to attend in case I say anything untoward.

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[EME]

Re: shock life-changing stress

Unfortunately due to the current call on barristers , i will have to decline the kind offer as none of my legal team are available. I understand that they are otherwise engaged as follows :

a) Taking stress-relief sessions from their lifestyle gurus
b) Defending barrister's husbands who , allegedly, have screwed up the running of the country and stand accused of being incompetent/divisive/smarmy and-worst of all - 'jug-eared' and
c) Boat warranty issues

axsherly booked to come back to France tomorrow night. I do however have to return for Monday/tuesday/Wednesday to Blighty when I will be working in the area.

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[tcm]

Re: booking an audience with jet-setting learner

well you will have to let us know when you are around. Is that your cardboard box across the street?

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[EME]

Cardboard Box acros the Street..

Aarrrggh bad times hit the TCM household ... have you moved to the Arches in Waterloo?

i would respectfully suggest that referring to St James Palace as a "cardboard Box' will not be well received in some quarters.

Working in W1 Monday thru wendesday . not jet-setting just that air fares are dirt cheap this week and remain so until about October 20th ( big planes on summer schedule)...

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[Deleted User YDKXO]

Re: Cote d\'Azur Sea Temp - Post Script

Excellent. I was going to ask for my money back

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[aswade]

Re: Cote d\'Azur Sea Temp - Post Script

jfm,

I really don't know much more about this than the next person, but this would seem to prove what I've been told:

Strong winds were causing a change in normal current patterns, allowing cooler water to well up from below, causing the sudden drop in water temps.

Now that the winds have shifted or diminished, the currents are returning to normal and the colder water is not welling up, ergo quick return to more normal temps. It is nowt to do with the ambient air temps or the sun warming the water since Sunday.

Several years ago, when my boss moved to Southern California, he was complaining that the water here was always freezing even in the Summer when the air temp was 100 degrees F. He asked some of the oceanographers and such that he was in contact with through the various oceanic organizations and foundations he is involvd with for an explanation and that is where much of what I read about currents and water temps comes from.



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[jfm]

Re: Cote d\'Azur Sea Temp - Post Script

Aswade:
Thanks for comments. I may be misunderstanding but I dont see how that is right.

If you have warm surface water (from months of sun) and then strong winds cause this to mix up with the cold deep water, you will get a rapid cooling of the surface water. As you say.

But then I lose your reasoning. If the winds stop, the currents stop and the deep water no longer mixes with the warm surface water. But the surface water is still cold. The fact that the currents have stopped is not going to make cool water separate out into a warm top layer and a colder lower layer. So what makes the surface water warm again?

Surely the only thing that will warm the surface water again is the sun and the ambient air. But the surface is rising 15-20 fahrenheit in a week, and the sun cant be causing it to rise that fast (think how long it takes the sun to warm an outdoor unheated pool).

So I remain very confused about how the surface temp rises so fast.

If I've gone worng somewhere, be greatful to hear more. I'm no expert here.

Salperton has had reasonable interest in Med by the way. I might accompany a viewing week after next - will report back!

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[aswade]

Re: Cote d\'Azur Sea Temp - Post Script

jfm,

Hopefully somebody with better scientific credentials will stumble across these threads and correct me as needed, but as I understand it, the strong winds cause a change in the normal current patterns, MOVING the body of warmer water that is normally along the Cote d'Azur coastline and allowing the colder water to well up from below. It is not so much mixing the colder water and warmer water, but a movement of that warm "blob" of surface water futher offshore to be replaced by the cold water from below. When the winds subside, the prevailing currents return, stopping the upwelling of cold water and allowing the warm "blob" to return to its normal position along the coast.

So the warming effect of a few days sun, or conversely the loss of it, is not a major factor here in the quick drop and subsequent rise in water temps.

Re: SALPERTON, she is a beautifully engineered yacht, as all the Dubois/Alloy yachts are, but I just can't get over her appearance. I am a sucker for the classic look. VICTORIA OF STRATHEARN is apparently now on the market as well. Much smaller at just over 40 meters, but her classic lines are what I would go for if I had my boss' money to spend.

Mr. Williams has found no takers on GEORGIA yet either, I understand.

Did you take a look at the Derecktors web site and the 150' sloop (originally for the ex-Tyco CEO) they are building to see if that might fit your guy's parameters? Classic lines but high performance and fairly roomy accomodations given the sleek lines.

Cheers,

Alex



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[BrendanS]

Re: Cote d\'Azur Sea Temp - Post Script

Stratification of water is something that was covered in depth in many of the courses you do in some biology degrees, but I can't remember a great deal of it, as it wasn't what I specialised in....however, many factors at play

Think of it as warm and cold fronts in weather terms. You have a layer of warm water (quite shallow) lying over a deep layer of cold water. Anything that disturbs the thin warm water layer, exposes the surface to the underlying cold water. Once that disturbance has gone, the warm water, which floats on the cold layer, will 'spill' back over the colder layer.

It's not so much a warming of the 'localised' cold water (local in geographic terms is pretty huge), as the warm water front covering the cold water. There are many, many other factors at play, including the fact that the warm water will be cooled by a large scale displacement, which means you'd need some good days of sun to warm the upper layer to an equivalent temperature to previous to displacement.

Bit distracted at the moment by trying to build a family website for dads 80th birthday party, so not as lucid a response as I'd have liked, but hope it makes sense

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[jfm]

Re: Cote d\'Azur Sea Temp - Post Script

Aswade and Brendan, thanks. That does sound a plausible explanation, much appreciated, it will no longer be keeping me awake.

Aswade, thanks for updates. To be honest I dont think there's a massive desire to buy unless something changes during the look around. He is aware of Kozlowski's boat, has been sent info. I know what you mean re the styling of Salpton and Georgia, but for this buyer the fantastic engineering is what's attractive. He's an engine room pokerarounder type.

He spent 2 days at Perini Navi in Viarregio early this week (I couldn't go because of work dang) to be shown their stuff in build. Some nice machines apparently. A $30m job commissioned by son of billionaire in his 20s with $1m+ of music and entertainment + audio visual toys. Music on hard drives all piped around network on the boat etc etc

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