Andre
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Annual temperature trends of the last 30 yearsAnnual temperature trends of the last 30 years
Which is correct?
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Andre
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to differentiiate more in detail see this:
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Andre
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Comparing quarterly figures of all sources:
Click to see full size image
and how it looks from the same starting point zero Jan 1979
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Andre
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Unfortunately a wrong data set slipped in there, the RSS TMT, middle troposphere instead of the TLT, lower troposphere:
Corrected data:
Click to see full size image
and the last ten year:
Click to see full size image
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sunsettommy
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Re: Annual temperature trends of the last 30 years | Andre wrote: | Annual temperature trends of the last 30 years
Which is correct? |
All of them.
You made a good point that temperature trends are according to who decides how to set it up on a chart.
For me I take them as a general guide and that is all.Except GISS because James Hansen seems to be playing around with the data lately.He is the one who is far warmer than the rest.
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sunsettommy
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| Andre wrote: | to differentiiate more in detail see this:
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Scenarios are slowly being exposed as being way too high.Again only GISS is withing their bands.
CO2 is slowly being exposed as an overrated "greenhouse" gas.
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Andre
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This is another comparison of the major global temp data sets updated until april 2008
And the UK weather office set HADCRU3T and the RSS version of the satellite lower troposphere compared to Hansen prediction scenario A
The 12 month running averages of the original datasets are displaced vertically to match the 1979 starting point of scenario A:
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DEM
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Andre, the tables are very clear and emphasize the agreement among observers in this 30 year observation period and the recent slowing of the warming pattern. I could find sources for the GHCN values on the GISS site you gave an address for earlier and the HADCRUT site. But the actual MSU2LT and NOAA data sources were unclear. NOAA has a large number of data sites and I assume that NASA is the MSU source but it is complicated by 2003 data adjustments so it is unclear what your source was. In particular, I recently used the UAH source to calculate 29.5 year values to argue that the warming is not global but concentrated in the northern third of the planet and want to know whether any other site breaks data down into hemispheres at least. You comment about my complete thesis on July 5 would be appreciated (Physics Forum).
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Andre
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update for October 2008:
Click to see full size image
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Derek
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Hello Andre,
The three plots seem to disagree with each other fairly equally most of the time.
However there does seem a peculiar "agreement" between them in 1998,
followed by an equally stronger "disagreement" in 2000.
Any thoughts as to why.
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