by Roy W. Spencer, Ph. D.
The global-average lower tropospheric temperature continues to be quite warm: +0.65 deg. C for March, 2010. This is about the same as January. Global average sea surface temperatures (not shown) remain high.
As a reminder, last month we change to Version 5.3 of our dataset, which accounts for the mismatch between the average seasonal cycle produced by the older MSU and the newer AMSU instruments. This affects the value of the individual monthly departures, but does not affect the year to year variations, and thus the overall trend remains the same as in Version 5.2.
ALSO…we have now added the NOAA-18 AMSU, which provides data since June of 2005. The local observation time of NOAA-18 (now close to 2 p.m., ascending node) is similar to that of NASA’s Aqua satellite (about 1:30 p.m.). The temperature anomalies listed above have changed somewhat as a result of adding NOAA-18.
[NOTE: These satellite measurements are not calibrated to surface thermometer data in any way, but instead use on-board redundant precision platinum resistance thermometers (PRTs) carried on the satellite radiometers. The PRT’s are individually calibrated in a laboratory before being installed in the instruments.]
YR MON GLOBE NH SH TROPICS 2009 1 0.252 0.472 0.031 -0.065 2009 2 0.247 0.569 -0.074 -0.044 2009 3 0.191 0.326 0.056 -0.158 2009 4 0.162 0.310 0.013 0.012 2009 5 0.140 0.160 0.120 -0.057 2009 6 0.044 -0.011 0.100 0.112 2009 7 0.429 0.194 0.665 0.507 2009 8 0.242 0.229 0.254 0.407 2009 9 0.504 0.590 0.417 0.592 2009 10 0.361 0.335 0.387 0.381 2009 11 0.479 0.458 0.536 0.478 2009 12 0.283 0.350 0.215 0.500 2010 1 0.649 0.861 0.437 0.684 2010 2 0.603 0.725 0.482 0.792 2010 3 0.653 0.853 0.454 0.726
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I think that the synoptic weather patterns this past year have been pretty fascinating. We saw glimpses of the negative AO as early as last summer, and the flip-flop of temps over the NH this winter isn’t something you see too often.
If the pattern holds for the next several months, we should see a pretty active Hurricane Season. Add it the cooling that will bring with an expected ENSO Neutral- La Nina evolution and next year temps should drop to near “average”.
In the mean time we can all be entertained by the resumption of the Alarmists-AGW nonsense.
Would it be possible to see where inclusion of NOAA-18 was announced and the possible changes it brings to the measurements. The search box only brings up this post.
Re: Josualdo (Apr 6 11:19),
The temperature scale is fixed absolutely by the decision to use the boiling point of water at 1 atmosphere pressure as 100 and the triple phase of water ( ice,water,steam) as the 0. That is the Celsius scale. The units of Fahrenheit are related with a mathematical formula with this, and the Kelvin came when it was determined that there should be an absolute 0 of temperature, which was extrapolated to -273C. ( due to quantum mechanics never really reachable).
There is no mathematical formula that would relate an average temperature in general, to this absolute scale as to make it a substitute temperature scale.
Yes, it heat is thermal energy which is part of the energy in a system and that is what I am discussing over at the other thread when talking of budgets.
Recent global warming is being credited to El Nino but what is causing the El Nino to be more effective in raising global tempeartures nowadays than in the time before 1998?
What about:
Recent warming = El Nino + sun + …+ greenhouse gasses
El Nino + sun [=flat] alone would yield a sawtooth trend that is plus-minus zero and would undulate about temperatures significantly lower. But the sawtooth curve is going up, which is the greenhouse forcing superimposed onto it. This explains the long-term updwards trend.
The “Friends of Science” in Calgary claim it is only the sun (friendsofscience.org). But one of their scientific advisors, C. de Freitas, the second author of the famed Mclean et al. 2009 paper, claims, it is largely El Nino (SOI). Ooops!
“Thank god it’s getting warmer. I hope it keeps going up, warmer is better. It will be a glorious day when coconut palms can survive year round in Canada.”
Wow, I hope that was a cynical joke.
O glorious day when the pine beetle will have converted Canada’s forests into carbon sources, when all of the world’s coral reefs will have bleached, when parts of China will have become an uninhabitable desert, when salt water invades half of Bangladesh several times a year, when 5% of the world’s population is on the run and half of the world’s species are threatened with extinction. Yay! I guess we’ll all be having mojitoes on Hudson Beach, 30 years from now. Lookin’ forward to that…
It’s not the first time I read such unworried comments from people who say they’re from Florida. I wonder how that’s possible, bearing in mind that Florida is one of the USA’s most vulnerable areas to climate change, with it being on top of porous limestone and all…
Surely the alarm bells should be starting to ring by now – another elNino, but from a higher baseline and a long term temperature trend that is stubbornly refusing to correspond to recent changes in the sun or warnings of a new ice age. Of course temps will also down again, but probably not as far as last time. We have changed the atmosphere so much that it is forcing the earth to store more energy than it used to and it will continue to do so long after every contributor to this website has passed on. Why is it so hard to accept what is becoming increasingly obvious? It’s not alarmist, it’s what is actually happening.