UAH Global Temperature Update July, 2011: +0.37 deg. C
By Dr. Roy Spencer
How ironic..a “global warming denier” reporting on warmer temperatures 
The global average lower tropospheric temperature anomaly for July, 2011 increased to +0.37 deg. C (click on the image for a LARGE version):
Even though the Northern Hemisphere temperature anomaly cooled slightly in July, as did the tropics, warming in the Southern Hemisphere more than made up for it:
YR MON GLOBAL NH SH TROPICS
2011 1 -0.010 -0.055 +0.036 -0.372
2011 2 -0.020 -0.042 +0.002 -0.348
2011 3 -0.101 -0.073 -0.128 -0.342
2011 4 +0.117 +0.195 +0.039 -0.229
2011 5 +0.133 +0.145 +0.121 -0.043
2011 6 +0.315 +0.379 +0.250 +0.233
2011 7 +0.372 +0.340 +0.404 +0.198
For those who want to infer great meaning from large month-to-month temperature changes, I remind them that much of this activity is due to natural variations in the rate at which the ocean loses heat to the atmosphere. Evidence for this is seen at the end of the sea surface temperature record through last month, which has a down-tick during the recent up-tick in atmospheric temperatures:
Global Sea Surface Temperature through July:
Here are the SST anomalies from AMSR-E on the NASA Aqua satellite (note the different base period, since Aqua has been flying only since 2002…click for a larger version):
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I suspect things are going to get worse and tempts are no longer going to be flat like they have for the last number of years. The heatwave that has been going on in the southern US the last few months is unbelievable. I would expect more records to be broken over the next few months as were starting to see more and more effects of man made Global Warming.
What a coincidence, I posted about the preliminary July 2011 Global and NINO3.4 SST anomalies today:
http://bobtisdale.wordpress.com/2011/08/01/preliminary-july-2011-sst-anomaly-update/
Both dropped a small amount in July.
Brian, Clearly not learned to read and write yet, then. Don’t come here making such statements without your proofs in place.
Brian says:
“I would expect more records to be broken over the next few months as were starting to see more and more effects of man made Global Warming.”
Brian, there is no verifiable, testable evidence, per the scientific method, showing any anthropogenic effects. None. This is the internet’s “Best Science” site, so you should really try to base your comments on science, not simply on your beliefs.
There is no evidence that these normal temperature fluctuations are anything other than natural variability. There may be an anthropogenic component. But so far there is no testable evidence supporting that conjecture.
Brian, “Oh no we won’t!”
Pantomimes are great aren’t they? And there’s not bigger pantomime than AGW.
Monthly fluctuations of this magnitude make 0.5 deg / century seem rather trite, especially considering that the satellite record is relatively recent. When pressed on the great inherent inaccuracy of surface-station based estimates of global averages, warmistas retreat to vague handwaving about earlier spring thaws or other regional phenomena, as if this were sure-fire proof of global catastrophe just around the corner. It’s just that they’ve picked an imaginary catastrophe, CO2-induced runaway warming, rather than an actual possibility, a Maunder-style cooling, for which statist fuel-poverty is not the answer.
This doesn’t meet my standard of irony. Rather it meets my standard of openness/transparency, FULL DATA acknowledgement, etc. No iron here what-so-ever.
After all, facts are facts. Good or bad is the emotion attached to the reaction.
Smokey – explain away the change in ocean PH without our CO2 emissions.
Pity about the “read and write yet” insult! The guy’s surely entitled to his opinion. Fundamentally most of the comments on here are nothing more than opinion, as we don’t know what the future holds. And as we don’t know what the Earth’s climate trend (it’s always varied before, right?) would have been without our presence/contribution (if any), how do we know if we’re making a difference or not? I’m just a wee bit sceptical that anyone on here, or on the planet, has an answer to either part of that question that is more than conjecture – possibly very sophisticated conjecture, but conjecture just the same.
looking at amsu 600mb july looks way cooler than june. how are these things calculated….
north queensland in australia has been having a cold winter…
29 July: Rockhampton Morning Bulletin: Rocky’s coldest winter in decades
AS THE nation debates climate change and the need for a carbon tax, Rockhampton is shivering through what could be its coldest winter in decades.
In June, the Weather Channel reported an average minimum temperature of 9.8 degrees in the city, just over one degree lower than the average and the coldest in June since 1994.
July so far is below the average as well, at 8.7 degrees.
These conditions have been mirrored around the State as Queensland battles low temperatures as the La Niña of 2010 has now been replaced with neutral condition…
http://www.themorningbulletin.com.au/story/2011/07/29/rockys-coldest-winter-decades/
Big thanks to Dr Roy for his prompt updates as well as the excellent paper he has had published.
Keep going Roy! Home straight now.
LA Guy – the overall problem with assigning blame in the PH change in the ocean is the assumption that the ocean PH is constant everywhere and has been through out time. So the PH changes, how can it be a big deal when the PH is not constant world wide and yet we have lots of bio-diversity? And don’t call it acidification. Before a solution can be acidic from being a base, it must neutralize first.
La guy,
These articles will help get you up to speed on the “ocean acidification” scare:
http://wattsupwiththat.com/2011/07/12/lowering-the-bar
http://wattsupwiththat.com/2011/01/10/ocean-acidification-chicken-of-the-sea-little-strikes-again
http://wattsupwiththat.com/2010/06/19/the-electric-oceanic-acid-test
Note that there is no testable, verifiable evidence showing that humans are changing ocean pH.
The UAH numbers are diverging strongly from the RSS numbers. The tropical temperatures and the middle troposphere temperatures are diverging even more than the global lower troposphere numbers. There is clearly an error somewhere, either in UAH or RSS. So at this time, both sets of satellite data need to be taken with a grain of salt. HadCrut3 continues to be completely flat.
Here is how things are looking.
http://reallyrealclimate.blogspot.com/2011/07/rss-and-uah-divergence-charts.html
It’s the second chart.
Brian says: “I suspect…”
Sure you do, Brian. Sure you do.
How big a difference is that compared to the old normal again?
One could say, quite accurately I’m guessing, that any anomaly, especially with a changing normal, is just the mere figment of statistical imagination.
The rate of ocean PH change is unprecedented in 50+ million years. Last time this rate of change happened there was a mass extinction.
Smokey – again you are making wild claims. The chemistry here is simple – there is no credible science that I’ve seen which refutes the chemistry. It is the ocean acting as a CO2 sink.
jim hogg says:
August 1, 2011 at 1:04 pm
Pity about the “read and write yet” insult!
The way I understood it, the reference would be to Brian’s ignoring of the fact that the article says Northern Hemisphere temps for July were down and this despite the record temperatures in the US.
La Guy,
Of course anthropogenic CO2 is acidifying the ocean, but you’ll find few here to admit even that.
An excellent comprehensive report on this can be found at:
http://tiny.cc/eg1z9
In regards to this months temperature anomaly…well, since we really aren’t in either a La Nina or El Nino, skeptics can’t really blame either of those, and according to Joe Bastardi, we should be seeing some big time cooling anytime now. The facts don’t seem to be supporting it…
Let’s bookmark this page and come back in 10 years … and we still won’t know what’s going on with the climate but we will have more interesting trends to look at. We could start a pool for the winner/survivor to collect. 😉
[Citation needed]
Without any citation for your claim of unprecedented PH change, who exactly is making wild claims?
La Guy:
“The rate of ocean PH change is unprecedented in 50+ million years. Last time this rate of change happened there was a mass extinction. ”
Citation please!
Your long-term memory capabilities seem to be what is unbelievable. This is August in the northern hemisphere and you state things like “I would expect more records to be broken over the next few months…”
—> Oh wow, where we live is hot now that we’re in late summer! Who would have expected right?! And look! Weather conditions in various places are creating temperature heat records in the summer! Amazing!
I suspect you were one of the people complaining about all the talk of snow records set last winter and tried to explain how they were not evidence that CAGW was wrong. But of course, any heat wave in the summer is somehow “unbelievable”.
As many will say to you, I’m not laughing at you, I’m laughing with your future laughter at your own folly.
La guy,
I provided three articles for reference, with hundreds of comments dissecting the issue. You could have learned a lot about the “ocean acidification” scare by reading them. Instead, you came back in only 13 minutes with your version of the CO2 scare. You probably never even opened the three links. You certainly couldn’t have learned anything in that short time [which included typing your response].
If you want to actually learn about ocean pH, the three articles I posted will help get you up to speed on the subject. But if you want to throw out wild scares based on a closed mind, do it somewhere else. The “acidification” scare has been thoroughly debunked here, as you would understand – if you had read the articles and comments.