In article , Tom P wrote...
On 04/12/2011 01:39 AM, Roger Coppock wrote:
The satellite record, in all its current interpretations, shows that
the air near the surface is warming. For background on the satellite
temperature proxy please see:
http://en.wikipedia.org/wiki/Satelli...e_measurements
The URL below is one of the more conservative records from the
University of Alabama at Huntsville.
http://vortex.nsstc.uah.edu/public/m.../tltglhmam_5.4 The global
data are graphed he http://members.cox.net/rcoppock/UAH-MSU.jpg
The Remote Sensing Systems Lower Troposphere (TLT) analysis also shows
a temperature rise above the surface of the land and sea.
http://www.remss.com/data/msu/monthl...nthly_MSU_AMSU
_Channel_TLT_Anomalies_Land_and_Ocean_v03_3.txt The data from 82.5N to
70S are graphed he http://members.cox.net/rcoppock/RSS-MSU.jpg
The trend is very much dependent on the latitude. If you look at the
figures for the various latitude bands, the positive trend is most
dramatic for 60/82, and nearly as strong for -20/20, whereas the trend
for -70/70 is almost zero - which seems to indicate that temperate
latitudes are not warming??
It's also time-dependent. Roger's not the only one who can draw pretty
graphs, but in this example http://i55.tinypic.com/iwrg35.png you can see
how useful a linear trend line is, depending on what you want to show. The
data is from Roger's thoughtfully provided source. I added another trend
line that's probably a little more representative of what's been happening
lately.
Anyway, the title 'Latest Satellite MSU Data Show Continued Warming' infers
that warming is continuing to occur, regardless of latitude. The fact that
RSS satellite measurements have detected a small but appreciable amount of
cooling over the last decade (there's that pesky linear trend thing again)
would indicate that the word 'continued warming' in the subject line is
deliberated misleading.
Of course, as a confirmed 'sceptic', Dawlish has probably already jumped in
here to describe Roger's description as 'spinning' the latest RSS figures.
Or maybe he hasn't ...
--
Falcon:
fide, sed cui vide. (L)