the Air Vent

Because the world needs another opinion

RSS and UAH Videos

Posted by Jeff Id on November 3, 2009

The following are video representations of the published RSS and UAH data.  This time the videos include lower troposphere, mid troposphere and lower stratosphere versions.  As before there are a number of interesting features to the data including oscillations between poles, contrasting anomalies between layers and strong variance in the polar regions compared to the equator.   I find the lack of variance at the equator very interesting as it demonstrates the quality of the signal used to determine whether the IPCC fingerprint exists is actually decent.  Another interesting point is that RSS doesn’t do the spatial filtering  of UAH and has several areas of missing data which show as dark purple where UAH presumably does some infilling.  The size of the polar UAH infilling is also apparent.  My favorite difference is the heating and cooling in the lower troposphere are often opposed by the stratosphere.  If you freeze the frames at different points you can see big lower troposphere hotspots and dark blues in the stratosphere.  In other cases the hot/cold effect switches to cold/hot.

R unfortunately decided to start making a scribble across Russia and Canada even though I’ve set the flags not to do that.  I’ll have to get my money back.

RSS temperature 3levels017

RSS Video YouTube Click to Play

The corresponding UAH video:

UAH temperature 3levels115

UAH Video YouTube - Click to play

5 Responses to “RSS and UAH Videos”

  1. Geoff Sherrington said

    Jeff, Thank you. Others will note certain patterns, but in my quest for the hot year 1998 some anomalies are starting to emerge. More looking tomorrow, as I have looked only briefly at UAH Lower Stratosphere, where the standout anomalies are at the North Polar region in months 12 or 1 or sometimes 2 of some years such as 1985/1, 87/12, 92/1, 93/12, 96/12 – then with 97/12 a north polar mix of very hot and quite cold – 98/1, 98/12, 04/1 (but 04/12 v cold, followed by 05/1 very hot).

    Hot (on the ground) year 1998 has hot spots in the lower stratosphere in 98/1 and 98/12. Does it emerge as a hot year because for reasons unexplained as yet, it had 2 bursts of these hot anomalies, when most years had 1 or none?

    These are strong features in the red/black region of the temp graph, going to 7 deg C anomaly. The monthly temperatures can go from hot to cold in a month, which is not unexpected given the low air density. And it is the northern winter after all.

    These black blobs seem more common at the north pole region than the south. An eyeball impression is that they could dominate the reconstruction of annual average temperature, as events are often close to normal in months 5,6,7.

    Reverse cases are the rather cold months of 1989/12, 1990/1, 1996/1 and 2004/1, just to name a few.

    So, the question has to be asked, why is the lower stratosphere so subject to bursts of midwinter extreme heat for some months in some years? Does anyone have a suggestion as to what leads/lags what with altitude and time and latitude? Is there a global wave whose motion can be roughly described? I cannot see one on a quick look. It all seems rather erratic.

    It would be interesting to plot the usual global surface graph with a lag of say 2 months in the temperature figure. I wonder which month of which year of the century would then turn out hottest? More plotting tomorrow.

  2. Jeff Id said

    #1, I’ve got no idea but am glad that the plots help. I find them very interesting, from the high speed video you can almost see the warmth well up from the oceans. I’ve got to write Dr. Christy and ask for gridded daily data if there is any.

  3. timetochooseagain said

    You’ll like this Jeff:

    http://pielkeclimatesci.wordpress.com/2009/11/04/guest-post-by-ben-herman-of-the-university-of-arizona/

  4. Jeff Id said

    #3 Thanks for that. It’s good to get a reminder of who’s reading here, it should keep things more grounded.

  5. Harold Vance said

    Nice!

    Do they have daily anomalies? 30 frames per second would be sweet. I’d love to see more fluidity.

    The equator sometimes looks symmetrical (like a butterfly).

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