Jones Anomalies and Another Half an Answer

In Earlier Comments on the Ünür.com posting

It was suggested to take a look at a video presentation of the Jones anomalies as assembled into a video clip by Sinan Ünür (h/t Oldtimer). Well, I finally got around to it. Fun and fascinating.

Not just for what it shows, but for what it does NOT show.

Unlike the garish Crayola reds of GISStemp present global maps, it simply shows patterns of passing weather. You see motion of reds AND BLUES over the face of the earth. Each comes and goes in turn.

But what also is NOT shown is the 1990 “hockey stick” period to date…

So it’s a very well done visualization of 1/2 the “issue”. That “prior to 1990” relatively clean data part of time. Now we just need to find (or make) a similar “Post Buggering 1991 to Date” comparison. Running the two as an A/B compare would make a startling contrast, and vividly point out the need to explain why “Global Warming” has sudden onset in 1991.

The Link:

http://www.unur.com/climate/jones-1990-1851-1990.html

The Video:

∆T>5 5≥∆T>4 4≥∆T>3 3≥∆T>2 2≥∆T>1
1≥∆T>0 0≥∆T>-1 -1≥∆T>-2 -2≥∆T>-3 -4≥∆T

All this makes me wonder just how much more wonderful stuff is waiting to be found on his site.

UPDATE: He’s got a whole bunch of such videos, up to 2007!

See the rest of them here:

http://www.youtube.com/view_play_list?p=A9288DB433D94F9B

Oddly, the CRUTEM3 one I looked at continues that red / blue swapping all the way to 2007…

Sidebar on Me and Now

I’m presently cruising back through the comments log looking for those places where I said I’d “look at that later”, like the link to “old data” and that 70 or 80 page article Oldtimer pointed me at (page 78?) which I downloaded and didn’t read yet ;-) and I will be “catching up” some of those interesting sidebars and backwaters and “someday promises” on this short “walkabout away from dT/dt”…

About E.M.Smith

A technical managerial sort interested in things from Stonehenge to computer science. My present "hot buttons' are the mythology of Climate Change and ancient metrology; but things change...
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4 Responses to Jones Anomalies and Another Half an Answer

  1. oldtimer says:

    Lord Oxburgh has now reported so there is more reading here:
    http://www.uea.ac.uk/mac/comm/media/press/CRUstatements/Report+of+the+Science+Assessment+Panel

    I suspect that you will not be impessed.

  2. Sinan Unur says:

    I think you have probably discovered everything that is interesting ;-)

    Part of the value of these animations (watching one from beginning to end is indeed tedious) comes from seeing the grid-boxes with no color at all and how much of the world they cover. (I know, the projection is not equal area, but still). In fact, re-watching them while focusing on specific regions is pretty fascinating.

    The animations also highlight the point that temperature measurements in any given year come from places where people chose to measure the temperature. That is, the set of locations with temperature measurements in a given month does not constitute a proper statistical sample. Therefore, it is impossible to use straightforward statistical methods to test any hypotheses using these data.

    Of course, these kinds of problems are exactly why Econometrics is harder than Statistics.

    Anyway, I have been trying to “warm up” to looking at these data sets again. I’ll give your readers a heads up when I post anything new.

  3. E.M.Smith says:

    Well, one thing about me, when I start looking at something I tend to keep at it until I’ve absorbed it all… It will probably take me a half dozen more watchings to get saturated ;-)

    I agree completely with your conclusion / statement that the places we measure make it useless for understanding climate. I’d only add that the processing done to the data after collection then make things even worse …

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