Note the black dot:
http://chartsgraphs.wordpress.com/
Looking at Dr. Roy Spencer’s daily UAH plotter, comparing to last year at this time, globally we are nearly a full degree Fahrenheit cooler:
So far, much of January (red) has been below the average line (orange) for the data set since 2002. It is not in record territory yet for this dataset but with 1/4 degree.
My SWAG for the January average UAH value is -0.12°C. We’ll know in a few days when Dr. Spencer posts.
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Not “below normal”; rather “below average for the satellite record”.
crosspatch
“The difference between temperatures now and temperatures one year ago (red line vs. light blue line) is quite impressive.”
Not really. Similar rises/drops in a monthly temp anomaly (~0.4C) from one year to the next have happened 40+ times in the 30 years of UAH data.
Global temp data have high variability. Check out the swing from Jan 2007-Jan 2008 (0.71C) or from Apr-97-Apr98-Apr99 (+0.97C, -0.69C). Temp rose quickly from Jan 2009 to Jan 2010, and dropped slightly less quickly (but still quite fast) from Jan 2010 to the present. Quick rises and falls are typical of El Nino year swings.
“More so when you consider that the drop occurred in a single week and has stayed there.”
No it didnt. The drop from Jan 2010 to present occurred over the course of a year. There were four sizeable drops (Mar-Apr, May-June, Sept-Oct, Nov-Dec) that ate up the 0.55C anomaly of Jan 2010 and turned it into the present value, which looks like it is going to shake out around 0.1C give or take 0.05C.
Mike Haseler says:
January 28, 2011 at 8:59 am
Dennis says: January 28, 2011 at 6:53 am
“Where did all the energy from last year go?”
It fell off Lower Loxley roof! He he! …
——-
That made me laugh.
Hey,
Did anyone see that they’ve scheduled the next round of global warming talks for Bangkok this April? AFP have just reported it:
http://www.google.com/hostednews/afp/article/ALeqM5hCYWw2rvTHt0VnchuZzQB-B2sviQ?docId=CNG.1b324d261b1d70e46050b731e6c7d0f3.761
Dr. Lurtz says: The radical shift in temperature anomaly points to the issue of temperature measurement. It would be a violation of Physical laws for that much heat to be radiated into space that quickly without a massive change in Global temperature; therefore, either the heat must be going somewhere, or, the temperature measurements do no represent the Global temperature!!
You’ve got it! THE basic problem, one that folks on all sides regularly ignore, is that a Global Average Temperature simply does not exist. It is at best a massive confusion and at worst a deception.
The reasons for this are, unfortunately, founded in 2 rather arcane bits of understanding, so I suspect that just about everyone (including Ph.D. “Climate Scientists” at NASA) just ignore them rather than take the time to think about it.
They are:
1) You can not average an intensive property and have it mean anything. Temperature is an intensive property.
2) Temperatures are driven by processes, such as land form (mountains) that are fractal in nature. Every single ‘surface’ has it’s own temperature. I assert temperatures are fractal in that the size of a fractal varies with the size of ruler you use to measure it (and we are constantly changing our rulers / thermometers).
Because of these two things, the idea of a Global Average Temperature is simply wrong.
Note that this is different from measuring the infrared signature for an entire planet from a single view of the whole place. Then you have fixed your ‘ruler size’ at ‘one planet’ and so #2 drops out. Further, you are not averaging temperatures, you are counting total photons of IR. That count is then DEEMED to be the same as certain black body temperature, but it is not saying the surface IS that temperature (as it is not). It is a leap of assumption, then, to say that the “average of surface temperatures” would be the same as that hypothetical black body. So you can get an IR measurement from space that is useful; you just can’t say that is the average of surface temperatures (only that it is the same IR as a Black Body of a certain temp would have emitted). You can see this pretty clearly if you assume a BB of 100 pixels all at 100 K, then ask “What if I raised ONE to 200 K?”. You now get 2^4 more IR from that one pixel. But ((99*100)+(1*200))/100 will not give you the same ‘temperaure’ as that IR image… If we assume the IR count at 100 K is “1” for our counter, then we would have 16 + 99 = 115 IR Count and map that to 115 K; where the former temp average gave 101. So which is it, 101 K (average of temperatures) or 115 K (count of increased IR photons)?
Now say only 1/2 of that pixel was actually doing the radiation. Increase the pixels count to 200. We’ve now got ((199*100)+(1*200))/200 = 100.5 for our “Average of temperatures”. Yet our IR count stays the same…
(There are two variations on that last ‘change’. One is to say that the hot pixel was made of one hot and one cold, so the x16 was really x32 from 1/2 of the pixel… that is, it was not a 200K pixel, it was one at 100k and one a bit hotter. 2^1/4 hotter, or about 238 K if I’ve done the math right. That gives ((199*100)+238)/200 = 100.69 K “average of surface temperatures”. The other variation is to say that the half pixel was in fact 200 K, and you need to redo your IR photon count. That would give (199 x 1 + 16)/2 or 107.5 K for our hypothetical ‘temperature’. In both cases (which ever set of assumptions you want to make) you get divergence between the IR Count as temperature proxy and the “average of temperatures”. 100.69 K vs 107.5 K in the last case or 101 K vs 115 K.)
And yes, I ‘left out some bits’ in this example to make it more useful for illustration. The basic point is that IR rises as a 4th power of temp. But an average of temperatures flattens everything linearly. To assume the IR count is an average linear increase in temperatures requires that the IR be evenly distributed, but we know it is not.
Back on Intensive Properties:
Here’s the wiki on intensive vs extensive properties:
http://en.wikipedia.org/wiki/Intensive_and_extensive_properties
OK, a simple example. Two pots of water, one at 10 C the other at 20 C. Mix them. What is the final temperature? You can’t know.
It depends on how big the pots were. Relative mass. We assume the masses being heated and cooled are constant and of the same average specific heat for the planet to change temperatures, but that isn’t true. Oceans overturn and different water comes to the surface. Snow falls in the mountains, now we’re not heating rocks with the sun but heating snow.
If those pots of water were 0 C and 100 C the problem is much much worse. Is that 0 C water in the form of ICE or not? Is that 100 C water vapor, or not? Heat of fusion and heat of vaporization. No temperature change, lots of heat flow.
So are we measuring, on average, the change of vaporization from the ocean? The change of condensation from the air? The rate of melting of snow and ice (that consumes heat) or the rate of snow fall (that liberates heat)? And in what masses?
As a simple example, a acre of mountain desert drops from 1 C to 0 C. In the first case, it is just bare sand. It stays that way for one week. An “average of temperatures” would say nothing happened in days 2-6. Yet cold soaked into the sand to some depth. Some heat flowed. It was, in fact, constantly cooling (heat flowed out of the sand and into the air but the air did not warm, as the heat was leaving on to space, cooling).
Now put 1 inch of snow on that ground. Still 0 C. Yet that snow has a much higher heat content than the inch of air it replaced. Have it snow each day. Now, each day, you have taken 1 inch of snow worth of ‘heat of fusion’ and dumped it to space. That is one heck of a lot more “cooling” than the dry example. Yet the thermometer says “nothing happened”… You did not account for mass and heat of fusion.
OK, that’s the ‘nickle tour’ of intensive vs extensive variables and why you can’t average them and have any meaning left.
The “fractals” one is a bit harder. (Please, don’t groan like that… I’ll try to make it easy). This is related to an interesting issue of measuring coastlines. If you measure the coastline for California from Mexico to Oregon by taking a speed boat straight up the line off shore, you get a short number. If you follow each in / out of every major bay, it’s a longer ride. Follow every little estuary in, even longer. Get down to measuring the distance around each grain of sand on the beach it becomes gigantic. About 1000 miles to 80,000 miles. Your choice. As you make the ruler shorter, you measure more curves on more things and get a longer total.
For temperatures, we know that it varies down to the size of a single pebble. An IR image shows that. We assume that a white box about 3 feet off the ground sort of averages them all out to something usable. So far so good. We are fixing our ‘ruler’ size at whatever area of scope a single Stevenson Screen averages. BUT, then we scatter them all over the place with random distances between them and change the number of them by a factor of 10 (or more) over the period of time we are measuring. We are changing the area each of these is expected to measure, changing our ruler length. We have a very dynamic “rubber ruler” measuring a fractal surface.
No wonder the numbers keep wandering around!
http://chiefio.wordpress.com/2010/11/22/an-example-of-fractal-temperatures/
http://chiefio.wordpress.com/2010/07/17/derivative-of-integral-chaos-is-agw/
And these properties are Not Negotiable. They are fundamental properties of nature. Yet all of “Climate Science” is predicated on strictly ignoring them and in fact on abusing them in ways that are non-physical.
So yes. “the temperature measurements do not represent the Global temperature!!”
Where could the heat be going??
Must it? Was it ever there? Since our method of measuring in broken fundamentally, we don’t really know where the heat went, or if it was there to begin with. All we have are temperatures and IR counts. Those are NOT heat.
IMHO, the heat leaves each day. We warm during the day, and cool at night. The net change in temperatures over the seasons are not “accumulating” heat, they are changes in heat applied as our axial tilt changes an wind blows in from somewhere else. There is no heat stored other than what gets trapped under a cloud layer waiting for the next cold clear night. Then it is gone.
http://wattsupwiththat.com/2011/01/23/frostbite-falls/
http://chiefio.wordpress.com/2010/12/28/ignore-the-day-at-your-peril/
My thoughts are that the oceans can not absorb heat that fast; therefore, the sudden change in temperature anomaly is due to the inability to correctly measure the Earth’s Global Temperature.
In this sentence we can see the impact of decades of “Climate Science” at work confounding things. I’m not picking on you, Dr. Lurtz, the same sentence will be made by millions of folks for the same reasons.
First, we have “oceans absorb heat” then we have “change of temperature”. We treat these as fungible goods. They are not. Heat is a flow of energy. Temperature is a pressure to flow, but may or may not have a flow, and certainly does not have a size of flow. We can have massive heat flow with no temperature change. Happens every day and all the time in weather. Tons of snow falls, at 0 C. Then it melts and flows away as water, at 0 C. Air rises and water condenses as rain, the heat movement showing as a phase change again. Winds blow down a mountain range, getting hotter as they go, but not from the sun warming them nor from their velocity; then they blow across a valley and rise up the opposing moutains, cooling as they go. Lots of temperature changes, heat not so much…
Then we come back to “measure the Earth’s Gobal Temperature”. Yet there is no such thing to measure. It is a fantasy of arithmetic. And a broken one at that.
We can measure the total IR Emissions from a point in space. But that is NOT the “Global Average Temperature”.
We can measure a sample of temperatures on the surface, but averaging them has no meaning. None. Not a scrap.
And then we desire to mix these broken things together into a conceptual model of how the earth is changing… and where the heat is “stored” and “going”. Every day you can see this same broken parade wandering down these same streets, again and again and again….
What we ought to do? Put a single satellite in orbit with the whole disk of the planet in view and just do a gross energy out measure. IR photons and visible. Have a similar count of solar flux. Compare the two over about 120 years. THEN we would have a clue how our energy balance shifts over time.
But measuring airport tarmac today and comparing it to cow fields in 1850 with no attention to how many spots are measured, where they are, and how they changed, then averaging them; that has no relationship to heat flow at all, and precious little to reality in general.
Dr. Lurtz,
There are the Argo floats that measure ocean temperatures at different depths. Search this site and I think that you’ll find some data and sources for the data.
E.M.:
Lengthy, but important and informative.
We have a similar thing going on with our view of the sun. The AGW warm-earther mantra is, “sun not change much”. or “Me not see sun much change” (I’m using my sarcastic Bizarro voice).
Sure, irradiance, “as measured by our current means” shows up and down variance of only 0.2% at a current latitude or inclination or altitude of measurement, and other variables. But that is one wavelength set, which was chosen to measure mostly visible light, because people see light.
But the really high energy wavelengths of solar UV show up and down variance almost 10% (in our recorded history). The lower the wavelength, the higher the energy. These are the wavelengths (like F10.1 solar flux) that really do the damage (like photochemistry, clouds, etc.)
We measure what we choose to measure, and apprehend the result consistent with our comprehension (or maybe consistent with our “world view”). Assumptions are built into every metric. WUWT has been a very good graduate course for me in learning to sort variables, and learn which ones are key limiting variables, and which measurements are doomed to being swamped by “noise”, and therefore, of limited use.
E.M.,
That’s a keeper.
For those that have yet to read the posts in E.M.’s links, do so, insert and save.
I really hated all of the articles declaring 2010 “the warmest year ever” before the year was out and all the data was in. Likewise I don’t care for this post when the month is not over and the data is not in. Is it so hard to wait 4-5 days for the entire data set to come in?
Ian W says:
January 28, 2011 at 6:20 am
Especially note not only the wider spread of cold water in the Pacific but also how cold the Gulf of Mexico and Atlantic is, including the cold SST that have caused the rains in Brazil. Look at the _cold_ ‘Gulf Stream’ (North Atlantic Drift) is that going to be keeping Europe warm?
———————————————————————————-
That is a very interesting and informative graphic…
E.M.Smith says:
January 28, 2011 at 11:27 am
Superb post, E.M. Smith! It echos my opinion that the global average temperature as computed by NASA/NOAA is thermodynamically meaningless, and is really just an “index” (sort of like the Dow Jones Industrial Average relative to the stock market value as a whole). And statements such as “the earth’s temperature has warmed 1.4 F since the beginning of the industrial age” are equally meaningless. This is made all the more confusing by using “anomalies” based on a arbitrary 30 year period which are then averaged in an ad hoc manner. The best we can do, in my opinion, is to estimate climate change using individual local temperature and precipitation histories as a guide (no spatial averaging).
Stu says:
Anyone like to throw some cold water on this conclusion?
Don’t you understand the earth can only support so many humans and other living creatures. Warmth and prosperity increases the number beyond what is “sustainable”. Therefore, it is bad. We need more cold and wet weather to destroy crops, promote diseases, and kill the excess living things.
Last year (2010), about every other day the only reason to get warm temps was caused by El Nino. This year it’s La Nina, so let’s compare with the last La Nina. That is January 2008 with a similar La Nina amplitude (1.4).
This is like comparing apple with apple.
Go ahead, do it. Go to Spencer’s blog to do it the right way. You’ll end up with an inconveniant result where Jan 2011 is slightly warmer than Jan 2008 (both years with similar La Nina conditions). Have i seen a warming trend out of those two moments in time.. Absolutly not.
It is call cherry picking on weather data and make believe it is climate. Tell me where’s the climate trend in this article. People are mixing/confusing there backyard weather with climate.
This is like using the bottom of the curve(the low) sea level between two peek periods to claim the sea level is getting low. Even if this new low is higher from all the previous.
Five bucks says all those alarmists cheering wildly for 2010 as being the hottest year since the Age of dinosaurs, will be deafeningly quiet as the substantially cooler temperatures of 2011 unfold.
At least, that is – as someone said earlier – GISS manipulates/strangles the temperature data yet again to ‘prove’ something different.
Quote:
“Looking at Dr. Roy Spencer’s daily UAH plotter, comparing to last year at this time, globally we are nearly a full degree Fahrenheit cooler: ”
“So far, much of January (red) has been below the average line (orange) for the data set since 2002. It is not in record territory yet for this dataset but with 1/4 degree.”
Umm, I don’t understand what the point here is for singling out one day (or month). Are you rooting for global temperatures to get lower on a day-by-day basis? Look at the entire graph and see that a good chunk of 2010 was near the record high trace line.
Is this posting making some statement that global warming is going away? It would be some extreme cherry picking if that is the case. If so, why look at such a short time scale? Why not do a comparison to an average earlier than 2002?
Oh, and it would be nice if this blog labeled the figures presented, such that people could refer to them as “Figure 1” or “Figure 2”, etc.
If temps can vary by 0.5 degrees in a six month period than how can we possibly claim that the average has risen 0.7 degrees in the last century and be alarmed about it?
You really need to understand Maths a lot better than this before attempting such a witless argument. A long-term average may hide huge variability, but that is no argument in itself to ignore the meaning of an average.
Many salespeople are paid by commission, so their pay therefore can fluctuate wildly. But it would be daft to assert that one guy paid an average of $6,000 a month is not better than one paid $4,000 average a month on the basis that variations mean the worse salesman is paid more in some months. For three months data that might be true, for several years it would be unlikely in the extreme.
That’s precisely why we invented averages! To smooth out the fluctuations. We have statistical tests that calculate the validity of averages, and you might need to do some reading to learn about them.
(This is not to dispute E.M.’s assertion that global temperature “average” has any direct physical meaning. I agree it is, at best, a proxy for what is really happening. But a long-term rise of 0.5 degrees cannot be ignored merely on the simplistic basis that the quarterly variations are of that magnitude.)
Chiefio,
Thanks for lengthy reply to Dr. Lurtz and thanks to Dr. Lurtz for the question.
Thanks to this website, as well as yours and others, I understand the basics of station siting problems; station drop-out; historical temperature record adjustments; UHI; tree rings; problems with the SST depending on whether or not an insulated bucket was used when obtaining a measurement, as well as an untold number of other problems with the temperature record.
After reading your post and working through some of the items (intensive and extensive properties), I can say it is the first time I’ve grasped that the concept of a global average temperature is meaningless, and by extension, so is a USA average temperature.
It’s just bad science and the fact that it keeps, and probably will keep, getting published puts everything in a different perspective.
Some of us are a little slower than others, but eventually it sinks in.
Thanks again.
E.M.Smith says:
January 28, 2011 at 11:27 am
“THE basic problem, one that folks on all sides regularly ignore, is that a Global Average Temperature simply does not exist. It is at best a massive confusion and at worst a deception.”
Well said. And the remainder of your post is well-argued. The postulate of a “Global Average Temperature” is holding back climate science.
And recall the 6-month lag. We’ll probably be down in that range for another 6 months.
It will heat up again soon enough with all the alarmists blowing hot air
otter17
Come on, isn’t it obvious? You yourself point out the 2010 ‘temperature’, that’s cherry picking. The point is only that this is a deviation from the long AGW drama. Why isn’t the media reporting this when every ‘warm’ event is?
Look at the ippc temperature projections. Do you see anything like this? It’s not supposed to happen.
The comparison is for the period for which they have data.
MikeEE
A few days ago a volcano erupted in the southern (Kyushu) island of Japan:
http://www.fnn-news.com/news/jpg/sn2011012605_50.jpg
The volcanic ash has and is still exerting heavy influences on agriculture and daily life in the surroundings, though its influence on the global temperarute may be miniscule.
Hottest year ever to below normal? No way is natural variation that strong. /sarc