Actually, that's a graphical representation of Trenberth's research results, from the looks of it, his 1997 paper published in Bulletin of the American Meteorological Society February, IINM.
Feel free to bring forward the most up to date representation you like. My bet is that it will still have the earth receiving more energy from the atmosphere than it does from the sun.
LOL, seriously?!
"Science doesn't know about night!"
Aparently not because the energy budget upon which agw alarmism is based does not incorporate night into the budget. You didn't know that?
yeah okay, this isn't a preschool "teach your baby to read compendium," its time to put down the picture books and pay attention to what Trenberth's research involved and recorded. In simple, dated, graphic terms that diagram was meant to illustrate the general elements of a snapshot of the Top Of Atmosphere (TOA) energy imparted by the Sun into the Earth system, how that energy translates through and in interaction with our planet's atmosphere and surface, and then how that energy is re-emitted and transmitted through our atmosphere back out into space. The sun shines on one hemisphere of the Earth 24 hours a day, 7 days a week, 52 weeks a year, every year. When the Sun is shining on the Earth, the majority of the energy that it delivers to the Earth is in the form of visible wavelength (shortwave, red to violet light) slightly biased toward yellow, light energy. When this energy is re-emited it is in the form of InfraRed (IR) light. 100% of our Earth's surface emits longwave (IR) radiation 24 hours a day, 7 days a week, 52 weeks a year, every year.
You don't seem to grasp the fact that if the model upon which you base your hypothesis doesn't reflect reality, then none of your findings based upon your model will reflect reality either; as is clearly the case with climate science.
The energy budget upon which alarmism is based divides the incoming solar energy input by 4 (P/4). This effectively renders the earth as a flat disk that is being constantly irradiated across its entire surface with a magnitude of energy equal to a sort of twilight.
The warmists energy budget divides the incoming solar energy because it assumes the earth is a black body. It isn't. You can use blackbody calculations on a star because they radiate roughly the same amount of energy in every direction. P/4 works when you have a 3D 360 degree self illuminating body. If you strech it out flat, the nunbers still reflect the reality of radiation from a star.
The earth, however, is not a 3D 360 degree self illuminated body. The earth is (as far as energy input goes) a 3D 180 degree illuminated hemisphere and the input of the sun, in order to reflect reality must be expressed as P/2.
The warmist energy budget assumes that the amount of solar energy received by the earth over 12 hours is the same as satellite measurements over 24 hours. The fact is that if you calculate solar input over 12 hours as it is actually received, and let the earth be a sphere rather than a flat disk, you don't need a greenhouse effect to account for the resulting temperature.
Left-hand side of the graph we are only dealing with energy coming into the open system. You don't count the atmosphere as part of the Earth? It's evident that Trenberth and anyone else properly reading and using his findings or that graphic should interpret the atmosphere as a very distinct and important part of the atmosphere, after all, the total solar energy impingent upon the Earth, at TOA is 341W/m^2(~100%), but the amount that reaches the atmosphere/surface boundary is only 184W/m^2(~54%) that means that elements of the atmosphere have absorbed (becoming more energetic/heating-up) or reflected nearly half of the energy impingent upon it. Looks like, from the graph, that the reflected amount from the atmosphere is 79W/m^2(~23%) meaning that the atmosphere absorbed about 78W(~23%) over the atmospheric column depth. So we have the Earth (atmosphere + surface) absorbing (161 + 78 =) 239W/m^2 (~70%) of the Sun's energy and reflecting 102W/m^2 (~30%) of the Sun's energy.
Except that is not what the graph portrays, is it? Why might the foundational tool for alarmist be left to the interpretation of the viewer? Further, the graphic is clearl labeled, "ENERGY RELEASED BY THE SURFACE". It is clear that you are interpreting the graphic to be stating something that it is not stating. The words on the graphic have meaning and if you must discount them and assume that they mean something else, or shouldn't be considered at all, you ar straying off the reservation and fabricating your own energy budget.
No, it is saying that the warmed atmosphere is emitting a total of 532W of energy, 333W into the surface and 199W into space. But that is more a difference in completeness and perspective than substance so far.
Are you denying that the graphic is stating quite clearly that 333 wats per square meter of energy is being delivered to the surface of the earth by the atmosphere in the form of backradiation? If you believe it says something else, then explain that column labeled 333 backradiation and 333 at the surface and a sentence fragment at the surface saying "ABSORBED BY SURFACE".
If the creator of the budget had meant something else, or desired to say something else, do you not think he would be bright enough to actually say something else?
No, at a given period, the Earth is absorbing a total of 239W/m^2 from the sun and emitting a total of 239W/m^2
We have already been through the "given period" and seen that that approach does not reflect reality. And again, your statement does not reflect what the graphic says. You are off the reservation again, fabricating your own energy budget. Don't worry, I see lots of people do it because they know as well as I do that the budget upon which climate alarmism is founded and remains founded is total BS.
The atmosphere is a part of the Earth. the entire Earth is intercepting a total of 341W/m^2 of primary solar energy, 102W/m^2 are being reflected and 239W are being absorbed directly by the atmosphere and the surface of the planet Earth. 239W are also being emitted by the atmosphere and surface of the planet to the heat sink of space.
And yet, in the graphic I provided and the graphics you provided, the energy is clearly notated as being ABSORBED BY THE SURFACE and released or radiated by the surface. You can get lost in the atmosphere if you like, but at the beginning of this exchange, I said:
"climate science speaks little about the realities of the world either. For example: Describe a mechanism, supported and predicted by the laws of physics that would have the atmosphere of the earth delivering more than twice the amount of energy to the surface of the earth that it receives from the sun."
To which you said:
"Please cite and reference this proposed situation.
I know of no such situation, however, the atmospheric "greenhouse" effect returns almost as much energy to the Earth's surface as the Earth initially and directly receives from the sun. This has the rough effect of doubling the amount of energy the earth's surface would receive from the sun in an atmosphere without greenhouse gases."
Now you are completely ignoring what both my graphic and your own say with regard to energy absorbed by the surface of the earth and energy radiated by the surface of the earth. If the authors of either graphic intended to say what you are saying, they would not have labled the graphics as they did. If you don't believe the basis for climate alarmism any more than I do, why are you attempting to defend it?
Please cite and reference this proposed situation.
The effect you are trying to understand is known as "insulation," it occurs when energy emitted in one portion of an object is retarded (or delayed) in its ultimate exit from that open system. Greenhouse gases act as an insulation factor delaying the exit of energy from the Earth system, as the longwave emissions bounce around a bit between the surface and the lower levels of the atmosphere before they finally escape. Increase the Greenhouse gases, increase the insulation factor. Simple century old science with a lot of very basic and solidly supporting evidence and observation throughout chemistry and physics in support of its precepts.
Yes trakar, I understand insulation perfectly. You, obviously do not. If you want to insulate your home, you use a material that does not absorb heat. If something absorbs and then emits heat, it is not an insulator. It is a conductor.
If you look at CO2 compared to the primary gasses in the atmosphere, it is clear that it is not an insulator. CO2 is, by definition of its properties a radiative conductor. You could rightly call it an insulator if it reflected IR, but that isn't what it does at all. CO2 is the opposite of a reflector, it is an absorber and absorbers facilitate conducting heat from one place to anohter. At that point, you must consider where it is conducting heat to and when you consider the second law of thermodynamics and the physics that govern vectors and EM fields, it is more than obvious which direction the heat being conducted.
Try jumping into a cold body of water. Tell yourself that it is lucky for you that the water is so good at absorbing your radiant energy because if it weren't, you would be dying of hypothermia.
It is like this trakar. If socalled greenhouse gasses trap radiation but do not emit it, then backradiation can not happen. If they absorb and emit radiation, then you can't make the claim that they act as an insulator.
Tell me trakkar, if energy is radiating from the surface of the earth at or near the speed of light, and that same energy is absorbed and emitted by CO2 molecules at or very near the speed of light, how much do you think that so called greenhouse gasses actually "slow down" the escape of heat into cold space?
Here is a hint. It takes a packet of IR about 0.0049 seconds to reach the top of the troposphere from the surface of the earth passing through concentrations of CO2 equal to that found in the atmosphere.
http://www.biocab.org/Mean_Free_Path.pdf
ever wrap an insulating blanket around a water heater?
Yeah. But I always use a materail that does not absorb and emit IR as it would be useless as an insulator Anyone who puts a radiative conductor around a water heater expecting to save money will be in for a bit of a surprise when the power bill comes in. Funny you should mention blankets. Well, not really funny because all you warmists eventually get to blankets. I posted ths on another thread some while back for another warmist and his blanket analogy. Pardon me for cutting and pasting it here.
"Human Body Emission
As all matter, the human body radiates some of a person's energy away as infrared light.
The net power radiated is the difference between the power emitted and the power absorbed:
Applying the Stefan Boltzman Law
The total surface area of an adult is about 2 m², and the mid- and far-infrared emissivity of skin and most clothing is near unity, as it is for most nonmetallic surfaces.[ Skin temperature is about 33 °C, but clothing reduces the surface temperature to about 28 °C when the ambient temperature is 20 °C. Hence, the net radiative heat loss is about
"
If you put a 20C blanket (which is colder) on a warmer 33C body, the surface temperature is going to reduce to about 28C. Heat flowed from the warmer body to the cooler blanket just as the 2nd law of thermodynamics predicts.
It is true that the blanket will trap warm air between the body and itself, but that heat will not increase the temperature of the body. The atmosphere as a blanket hypothesis just doesn't work because your blanket is -20C.
What do you think happens when you wrap a -20C blanket around a -18C earth? Just as the surface temperature of a human body drops from 33C to 28C when you wrap a blanket around it, the earth's temperature will drop as well. Wrapping a -20C atmospheric blanket around it certainly won't cause its temperature to increase by nearly 33C up to 15C.
In either case, the blanket on your body or the atmosphere around the earth, a temperature increase of the body, or the earth would be a violation of the 2nd law of thermodynamics.
Now if you care to try, feel free to explain how any amount of atmospheric CO2 in an atmosphere that averages -20C can cause the earth's -18C temperature (with the sun as its only energy source) to warm by 33C to 15C?
If you are going to try, provide some laws of physics to support your explanation.
If you insulate your room to the point that your electric heater is emitting more heat than can escape from the room, then your room will continue to warm until it reaches a point where there is as much heat escaping as there is being pumped in by the heater. In the case of the Earth, the planet is emitting as much energy as it is absorbing. so it is at rough equilibrium in its current state, as the atmospheric GHG content increases so will the insulation factor, making the planet gradually warmer while maintaining balance in absorptions and emissions.
Do you believe that an analogy in which you put perhaps meters of dense, non absorbing insulation material in a room in any way represents the earth and its atmosphere? No matter how much you insulate your room, you will never get one watt more out of that energy source (heater) than you pay the electric company for. You can not get more energy out than you put in. (if necessary go back to the graphics. They are clearly indicating that more energy is radiating from the surface of the earth than it is getting from its only energy source) If you did, you would be violating the 2nd law of thermodynamics. Of course if you did, you would have an energy source for a perpepetual motion machine and would be a bazillionaire this time next week.
Your analogy fails with regard to CO2 however, because CO2 is not an insulator. It is a radiative conductor in that it does not reflect IR but absorbs and immediately emits it.
If that confused you, it wasn't because anyone attempted to confuse anything, it is just a simple explanation of what is happening using representative values (100%) etc., comparing these values to Trenberth's we can see a pretty fair approximation.
No, that didn't confuse me.
a bit off on that one but if you look at how they've split up the emissions and absorption areas its easy to see where the difference in methodology is yielding some slightly differing values for secondary processes, and that is simply an matter of preference between the research approaches. As long as the overall numbers and major events are covered, it really doesn't matter which method you use to reflect the complicated interactions that make up the secondary and tertiary processes.
The minor differences are really irrelavent because at the bottom line, you still have X energy from the only energy source (the sun) being absorbed by the surface of the earth; and in the end you have X + (?energy from nowhere?) radiating from the surface of the earth. You can't have more energy radiating from the surface of the earth than it receives from its only energy source.
No, it says that there are 100 total units of energy being intercepted at the top of the atmosphere, 30 of these units are being reflected away and 70 units are being absorbed by the Earth's atmosphere and surface. 23 of those units absorbed by the atmosphere are re-emitted and absorbed by the surface.
That graphic clearly states that 28 + 23 "energy units" are reaching the surface of the earth less 6 "energy units" that are being reflected leaving 51 "energy units" being absorbed by the surface of the earth. You keep dodging what the models claim is happening at the surface because instinctively you must know that the whole house of cards fails at the surface.
This is the equivilant of the right-hand side of the Trenberth graph and is devoted to the emissions of radiation from the Earth.
Thanks, but I knew that.
The previous graph deals with incoming radiation, this one deals with internal Earth system interactions during the emission process. We start with 117 units of energy emitted by the surface, 111 of those units are absorbed by the atmosphere, 6 of those excape directly. 64 of those absorbed by the atmosphere are also re-emitted and escape (64 + 6 = 70%).
117 "energy units" emitted by the surface of the earth but only 51 "energy units" absorbed by the surface of the earth by its only energy source. You may find it easy to skip over that little detail, but I want you to describe to me, in detail, the mechanism by which the earth's surface can emit more than twice the amount of energy it absorbs from its only energy source. As part of your explananation, I also want you to describe the physical laws which predict and support the idea that an illuminated surface can emit more than twice as much energy as it absorbs from its only source of illumination. And show your math.
No, we have 117 units of energy being emitted by the surface of the Earth,
You keep glossing over that 117 "energy units" being emitted by the surface of the earth but when that surface only absorbs 51 "energy units" from its only energy source, you have some splainin to do if you expect me to buy it. Again, describe to me, in detail, the mechanism by which the earth's surface can emit more than twice the amount of energy it absorbs from its only energy source. As part of your explananation, I also want you to describe the physical laws which predict and support the idea that an illuminated surface can emit more than twice as much energy as it absorbs from its only source of illumination. And show your math.
96 of these units are re-emitted toward and re-absorbed by the surface.
We run into a bit of a problem here as well. We must go back to the heater surrounded by reflectors. If you had a heater with an output of 1000 watts per square meter surrounded by reflectors, even perfect reflectors, you could never coax a single watt of energy out of that heater that you did not buy from the electric company. You are trying to tell me that if I surrounded that heater not with reflectors, but radiating conductors which by their very nature scatter energy, I could somehow coax more than 2.000 watts out of that heater while only paying the electric company for 1,000? Is that what you are saying?
Again, describe the physical laws that predict and support that claim and show me your math.
It really isn't complicated or confusing as long as you understand what is going on and follow the progression laid out and discussed at the site linked, which is the reason I linked the site instead of just linking a picture and then making up my own explanation of what the picture "should be showing" instead of paying attention to the information the pictures, and more importantly the research the pictures are based upon, are trying to confer.
No it isn't confusing or complicated at all. Simply stated, it is a fraud. Global warming is only manmade in the sense that the issue is manmade, the data is manmade, the crisis is manmade, and the consensus is manmade. I look forward to your detailed explanation as to how a surface that absorbs 51 "energy units" from its ONLY ENERGY SOURCE is able to radiate 117 "energy units".
When you get to the part where you are describing backradiation, we can open the topics of the 2nd law of thermodynamics, EM fields, and the physics that govern the direction of energy flow along vectors. And some observable, experimental, repeatable and best of all inexpensive evidence that you can do in your own back yard that will allow you to prove to yourself that it simply isn't happening. I look forward to it.