Skip to main content

Replies sorted oldest to newest

Mufc
quote:
This google video kinda fits in with that SoM,


Excellent video, I hadn't seen that before but I'd read about Bob Carter....pretty much sums up my position.

Lucibee
quote:
I have a video too!

I would have loved to post this on the C4 forum...


Yes elementary risk management without the weightings of likelihood, or the base case of business as usual where many of the technology challenges are being worked anyway while the AGW picture evolves ie prepare doesn't need to include implement from the start but only when the empirical evidence becomes significantly supportive.... none of it is anything like overnight type urgency.
SO
Son of Mulder.

High five SoM!

quote:

Which of the 10 myths can be refuted.... where is Steve_M?

Probably most of them.... And I think Steve_M is taking a sabbatical at "C A", but If I understand him, his curiosity will get the better of him, we'll hear from him soon. "Falsification" is too strong an attractant to keep him away (so is obsfuscation)! I've no doubt he's ogling this site for anything that 'piques' his interest (just like me).

With all due respect SoM, we've already been through these principles. How do you regard the MEP (maximum entropy production) principle? Here's a link to an important paper that describes this (basically) for climate cells.
http://home.iitk.ac.in/~osegu/Entropy_Prod2.pdf

I can't see any centrifugal influence from Earth rotation in their math model. Can you?

Best regards, suricat.
S
mufcdiver.

quote:

Hey suricat
Have you had a look at the pdf that I posted?
I first saw it on CA at the version that I linked to, haven't seen the published version though( something to do with actually paying for the priv.)

I've bought a "dongle" for my laptop so I'm able to download stuff better now. I've seen this paper before and it's a long read so I really don't want to read it again. However, (when I did read it) it seems to be in general agreement with my direction of understanding, which is:
CO2 is too sparse to be a major contributor to atmospheric warming; back radiation is an apparent effect and not a cause (in analogy, a bit like registering 'back EMF' [EMF = electromotive force, or volts] in only part of an electrical inductor within an 'AC circuit' for a 'grey body', or with a resistor transposed with the inductor for a 'black body').
Put succinctly, a radiative model doesn't account for a climate because climate can only be modelled by the actions of the mass within the atmosphere, as and when, they are prescribed/proscribed by radiative influences from outside of the atmosphere.

As for privileges, the most recent papers to gain acceptance are nearly always hidden behind a 'money wall' and can't be posted in a forum (well they can, but fellow forum readers will have to pay to see them).

Best regards, suricat (simples, ha, I like that). Big Grin
S
Geoman.

quote:

You guys may be interested in this

This should be a better place for readers to download this .pdf file;
http://arxiv.org/abs/0904.2767
as it's the destination of the archive link.

Please pardon my extra link Geoman, as many ex-C4 posters are .pdf archive source challenged due to their exclusions from the old C4 web-site (this probably includes me).


I think that this is an excellent comment paper that outlines some of the failings of ignoring a full 'Earth model' when accounting for 'radiative balance' relative to Earth's climate.

The 'two shell model' of 'surface' and 'radiating atmosphere' for OLR (outgoing long-wave radiation) only emphasises the activity of latent convection in the absence of OLR's 'escape' from the Earth system (the main role of the atmospheric hydrocycle, and mass, to an altitude of somewhere above the mid tropo only increases providence for MEP (maximum entropy production) theory). The proverbial 33 degrees centigrade differential between the observed temp from space and the ave global near surface temp springs to mind!

I'm sure there is more to discuss on this. It really is a shame that Steve_M isn't here to add to our chatter.

A welcome introduction to the debate for my part (even if my math isn't fully up to speed).

Best regards, suricat.
S
Lucibee.

Oh, Luci!

From my experience with Eli, only the minimum data is offered in any communication. The data offered is usually obtuse and difficult to follow. Although the guy is very intelligent and well adept within his field, he tends to be too cryptic to be helpful in a discussion.

The "Smith" paper that you reference is the paper that Geoman's linked paper comments upon. BTW, I don't know whether a 'comment paper' needs to be reviewed or not to be valid as a 'comment' (in my estimation, I doubt that Geoman's linked paper needs to be reviewed to be a valid "comment").

Hope this helps.

Best regards, suricat.
S
MUFC
quote:
I have a pdf Falsication Of The Atmospheric CO2 Greenhouse Effects Within The Frame Of Physics and its been through the peer review doodah!


Another goody Mufc. Have you discovered a Pandoras box since leaving C4. I particularly like 4.3 Science and Global Climate Modelling, starting on page 88 and the Physicists Summary on page 92.

Steve_M is a physicist whereas I'm a lapsed applied mathematician who specialised in theoretical physics, so his comments would be of interesting to me. I suspect he is lost to us now and I don't hold out Suricat's optimism that he will reappear.

Suricat
quote:
With all due respect SoM, we've already been through these principles. How do you regard the MEP (maximum entropy production) principle? Here's a link to an important paper that describes this (basically) for climate cells.


I came across it as I was looking for something to kickstart discussion here as we have lost our vast repository of threads from C4 days.

As for "How do you regard the MEP (maximum entropy production) principle?". I'm a great believer that all physical action can be formulated as least action principles like in lagrangian and hamiltoniam formulation of classical mechanics. This was extended to Quantum and relativistic realms. The challenge is to find the functions (Actions) to be minimised (or maximised). It can be reduced to a minimisation problem by taking the recoprocal of the maximised quantity. The general topic is call the Principle of Least Action.

As to whether "Entropy Production of Atmospheric Heat Transport" is such an action to be maximised will be an interesting area to follow as it may well have an impact on GCM formulation.

quote:
I can't see any centrifugal influence from Earth rotation in their math model. Can you?


That's possible because when dealing with least action your're dealing with an integrated function and it is only when you differentiate it that the physics you are used to appears.

I can't judge the validity in this case but I know from experience (many years ago) that it is so in lagrangian mechanics. In that the Action was L=T-V where T is kinetic energy and V is gravitational potential energy. see http://en.wikipedia.org/wiki/Lagrangian_mechanics
SO
Geoman.

RE: "Woops". I think this is my line Geo. I didn't mean to cause any upset by suggesting that a comment paper shouldn't need a peer review, as I think that this is part of the process of disproving a paper that already enjoys the peer review label. Meaning, the 'comment' is intended to reopen discussion on the 'already reviewed paper'.

But, hey, I'm not a scientist either and I thought we were all here in this forum for discussion!


Lucibee: I profoundly apologise if I caused your indignation. However, I would dearly like to hear the reasons for your disagreement and not someone else's. Take a trip to Climate Audit's forum and ask EliRabbet a question (Eli is there, but is usually cryptic when responding). Simples!

Best regards, suricat.
S
quote:
Originally posted by Lucibee:
I'm outta here. If you are simply going to dismiss the evidence like that, then there is no hope for any of us!

I'll wait until one of your falsification papers gets into Science or Nature, and then get back to you.

Sorry Luci, I posted before I saw your second post linking to Smiths paper, the Rabbett blog just touched a nerve at the end of a long day (His kind of dismissive arrogance really rankles me)
As for Smiths paper, this seem (at first glace) to be a far more appropriate riposte to Gerlich and Tscheuschner s paper (Notwithstanding Kramm, Dlugi & zelgar s comments). I'll reply after reading both( distracted by footie tonight! Yay Reds Smiler )
Please be aware though that we are all on the same side and I do believe that humanity is in 'dire straits', I personally think that our biggest problem is general land [mis]management dating back thousands of years, and the need for this to be addressed trumps co2 induced climate change.( I know that many solutions for the latter would aid the former, but hey, lets have the horse before the cart for once)! Lets start living with this planet, not on it!!!
Ensign Muf
Last edited {1}
Son of Mulder.

quote:

I'm a great believer that all physical action can be formulated as least action principles like in lagrangian and hamiltoniam formulation of classical mechanics.

When I were a lad, my maths teacher insisted that equations were accompanied with a "given" list that explained all the detail of the data and functions applied to it. The emergence of quantum and relativistic math from their classical root currently seems to ignore this discipline of "full disclosure".

The "least action principle" of micro math can be identified as the "path of least resistance" of macro math, but sometimes these are incompatible because the micro math can easily be the inverse of the macro math without full disclosure of this. I find this confusing, to say the least.
quote:

As to whether "Entropy Production of Atmospheric Heat Transport" is such an action to be maximised will be an interesting area to follow as it may well have an impact on GCM formulation.

I concur. MEP is a "brand" that seems to walk a median line between macro and micro theory.
quote:

That's possible because when dealing with least action your're dealing with an integrated function and it is only when you differentiate it that the physics you are used to appears.

This is my whole point. Micro math doesn't leave the 'paper trail' that most individuals need to follow for their acceptance of the math! Surely the accountability of micro math needs improvement?

Best regards, suricat.
S
From :Have Changes In Ocean Heat Falsified The Global Warming Hypothesis? - A Guest Weblog by William DiPuccio


"IR radiation that is absorbed and re-emitted by these gases, particularly CO2, is said to be amplified by positive feedback from clouds and water vapor".

I am still working through this "paper". A question arises whenever I read the above statement about amplification, how in nature do you get something for nothing? Is it just a poor use of words?
Thanks
G
Suricat
quote:
When I were a lad, my maths teacher insisted that equations were accompanied with a "given" list that explained all the detail of the data and functions applied to it. The emergence of quantum and relativistic math from their classical root currently seems to ignore this discipline of "full disclosure".


The principle came out of classical and was then incorporated into Quantum and Relativity. I view it as an example of holism ie the whole is greater than the sum of the parts. You can see the parts but how they all link together requires integration ie an intuitive leap. It does make things easier once you have the Action function because you then deconstruct to get the answers to test against measurements.

In quantum there was another leap which was to define the probabalistic wavefunction and relate it's space and time derivatives to classical momentum and energy. Then Dirac relativised it and then least action was used for Quantum electro dynamics see this.

It works but Feynmann said "I think I can safely say that nobody understands quantum mechanics." so we're in good company.
SO
Thanks SoM.

However there is only one external heat source for this planet, and I can understand how there could transference of energy from one wavelength to another, eg visible spectrum into IR by absorption and emission. The positive feedback that is mentioned time and time again baffles me. How can the total radiation falling on the Earth's surface be greater than the Solar radiation that enters the top of the atmosphere? Where does the energy for this process come from? Is this what the IPCC call Radiative Forcing?

Many thanks.
G
Geoman
quote:
The positive feedback that is mentioned time and time again baffles me. How can the total radiation falling on the Earth's surface be greater than the Solar radiation that enters the top of the atmosphere? Where does the energy for this process come from? Is this what the IPCC call Radiative Forcing?


Assume energy from the sun stays constant, Infrared radiated from the earth doesn't all leave before some is 'captured' by a greenhouse gas and then some of that is thrown back at the earth so adds to the energy from the sun. Increase the greenhouse gas and more gets thrown back so it gets warmer (that's forcing). That causes water to evaporate which is also a greenhouse gas and that captures more outgoing IR and throws some more back (That's positive feedback). ie less IR leaves the top of the atmosphere until the surface warms and radiates even more. So no extra energy from the sun but more is recycled before finally leaving.
SO
Thanks SOM

quote:
some is 'captured' by a greenhouse gas and then some of that is thrown back at the earth so adds to the energy from the sun


I understand the above, but what is thrown back has come from the earth, indeed the result should be that a little less than 50% of the captured IR comes back to the earth. However without any additional heating the earth can not remain at the same temperature since it has just emitted energy as IR upwards. This exchange of energy up to be captured then transmitted down to the earth if left alone without any further addition to the system would result in cooling, not heating. I can not see this as amplification.
I must still be missing something. Please bear with me, I will get there in the end!
G
Last edited {1}
Geoman.

quote:

Thanks SOM

quote:
some is 'captured' by a greenhouse gas and then some of that is thrown back at the earth so adds to the energy from the sun

I also share your madness Geo. This is why I complain often about micro math (quantum stuff) and its often inverse function in comparison with macro math (classical stuff). There is no amplification, only attenuation!

The confusion lays in the different energy levels between the two wavelengths of insolation and OLR (outgoing long-wave radiation). In this analysis, high frequency (short wavelength) = high energy transmission, however, low frequency (long wavelength) = low energy transmission.

The absorption of Earth's atmosphere in the full EM (electromagnetic) spectrum displays the properties of a high pass filter. In other words, insolation gets to the surface quite easily (with the exclusion of UVa frequencies and above), though is attenuated where there is cloud and particulates, but IR is blocked after only a few metres of attenuation below the mid troposphere. Thus, energy is quite easily introduced to regions below the mid tropo, but after being degraded to longer wavelengths below this region is strongly attenuated by the local mass (atmosphere).

To my logic, this is nothing more than attenuation biasing. Hope my madness helps.

Best regards, suricat.
S
quote:
Originally posted by suricat:
Geoman.

quote:

Thanks SOM

quote:
some is 'captured' by a greenhouse gas and then some of that is thrown back at the earth so adds to the energy from the sun

I also share your madness Geo. This is why I complain often about micro math (quantum stuff) and its often inverse function in comparison with macro math (classical stuff). There is no amplification, only attenuation!

The confusion lays in the different energy levels between the two wavelengths of insolation and OLR (outgoing long-wave radiation). In this analysis, high frequency (short wavelength) = high energy transmission, however, low frequency (long wavelength) = low energy transmission.

The absorption of Earth's atmosphere in the full EM (electromagnetic) spectrum displays the properties of a high pass filter. In other words, insolation gets to the surface quite easily (with the exclusion of UVa frequencies and above), though is attenuated where there is cloud and particulates, but IR is blocked after only a few metres of attenuation below the mid troposphere. Thus, energy is quite easily introduced to regions below the mid tropo, but after being degraded to longer wavelengths below this region is strongly attenuated by the local mass (atmosphere).

To my logic, this is nothing more than attenuation biasing. Hope my madness helps.

Best regards, suricat.
Like where you are going with this suricat, this could have legs for a falsifaction of the 'Radiation budgets part in AGW
Ensign Muf
Last edited {1}
mufcdiver.

quote:

Like where you are going with this suricat, this could have legs for a falsifaction of the 'Radiation budgets part in AGW

I don't see how muf. Geoman has a problem with the logic used in climatology. All I did was try to explain this as classical science.

How do you see this and what's a "falsifaction" (you may want to edit that)? Smiler

Best regards, suricat.
S
quote:
Originally posted by suricat:
mufcdiver.
I don't see how muf. Geoman has a problem with the logic used in climatology. All I did was try to explain this as classical science.

How do you see this and what's a "falsifaction" (you may want to edit that)? Smiler

Best regards, suricat.
Sorry suricat, I [mis]read you post as an underestimation on the IPCC part in the Earths ability to store the radiation received from the Sun. Blush
Ensign Muf
Last edited {1}
Suricat
quote:
This looks like an excellent falsification of CO2's radiative forcing though!


Anoher excellent post. We discussed the Miskolczi stuff with Steve_M last year I seem to remember. He didn't like the Kirchoff bit from what I recall. I think the Venus stuff in the comments section is a red herring as it doesn't have oceans and rain to my knowledge as it's too close to the sun.

I shall be breaking out my old book on Entropy Theory to refresh my knowledge and to try and understand more of the details of Miskolczi's work....don't hold your breath.

As an aside, I found an interesting possible wager that by 2015 we should be able to determine whether AGW is real see this.

I'm not a betting man but there could be some egg on face come 2015 for some.
SO
Son of Mulder.

quote:

Another excellent post. ((edit) corrected spelling [because this plays havoc with my spell check when I quote with typos]) Smiler

Yea! I thought it was pretty good too.
quote:

We discussed the Miskolczi stuff with Steve_M last year I seem to remember. He didn't like the Kirchoff bit from what I recall.

Yes and I'd have agreed with Steve for desert, rocks and concrete, but rain-forest is mushy and ocean is downright spongy on wide spectrum 'Kirchoff' albedo so I didn't feel confident to 'engage' in this when more than 70% of the planet is water and there're still a lot of forests. There are more degrees of freedom involved that include M's theory here, but as has already been said, he seems quite cavalier in attitude and quiet on communications (makes me think he has a good manager).
quote:

I think the Venus stuff in the comments section is a red herring as it doesn't have oceans and rain to my knowledge as it's too close to the sun.

I think the Venus stuff is posted by astronomers looking for a universal climate template (or posters looking for full universality of the application).

I've read somewhere that Venus does have rain, but it doesn't achieve planet-fall and it isn't just water, it's sulphuric acid! Sick The magnetosphere of Venus is almost non existent in comparison with Earth, thus, its proximity to our sun has 'boiled off' lighter elements and compounds into Venus's high atmosphere to be 'blown away' by solar wind. In this respect I think mankind should revere Earth's collision with Thea, which established Earth's iron core and effective magnetosphere! Without this magnetosphere Earth would contain much less water.
quote:

I shall be breaking out my old book on Entropy Theory to refresh my knowledge and to try and understand more of the details of Miskolczi's work....don't hold your breath.

I won't because they are probably outdated and anything I've googled so far is behind a money wall, but I did find this:
http://sdphca.ucsd.edu/pdf_files/PRL04434.pdf
Though I don't think it's appropriate!
quote:

As an aside, I found an interesting possible wager that by 2015 we should be able to determine whether AGW is real see this.

I'm not a betting man but there could be some egg on face come 2015 for some.

Ha! Yes, on the UK Gov taxes as well (not to mention carbon certificates)! Though I believe that moderation of energy use is wise in any case.

Best regards, suricat.
S

Add Reply

×
×
×
×
Link copied to your clipboard.
×
×