Time to bet on the UAH TTL anomaly for March, 2010. The winner is the one who come closes to guessing the global value Roy Spencer will post on at his blog, as he does every month. The winner is the person who matches new version 5.3 value most closely. The graph of Channel 5 AMSU values from The AMSU-A page is shown for information. This instrument is not used to compute the UAH TLT values, but does give a rough indication of whether the troposphere was warm or cool during March. (It was warm; very warm.)
Results are deleted when 2 months old to avoid taking my site down.
Place bets before midnight 4/1/2010 (probably California time). If the entry form vanishes before that and you want to enter, let me know. (The clock is at Dreamhost; last month there was a ‘issue’.)
Europeans: used ‘.’ not ‘,’. That is enter values like this ‘0.1’ not ‘0,1’. The script is stupid. It doesn’t know you are European.
[quote lucia]
The graph of Channel 5 AMSU values from The AMSU-A page is shown for information. This instrument is not used to compute the UAH TLT values
[/quote]
.
Channel 5 _is_ used to calculate TLT values.
.
[quote Roy Spenser]
we use a weighted difference between the various view angles of channel 5 to probe lower in the atmosphere, which a fairly sharp weighting function which is for our lower-tropospheric (LT) temperature estimate.
[/quote]
http://www.drroyspencer.com/2010/01/how-the-uah-global-temperatures-are-produced/
The data from the near-real-time feed you connect to for this bidding thing is not used to calculate TLT because it’s not fully processed.
Also this quote from the Docs directory of the UAH data web site:
.
[quote May, 2005]
The new name for the lower troposphere will be TLT or tlt, dropping the
“2” because we now have AMSU data in the mix which utilizes
AMSU channel 5 (similar to MSU channel 2). For the mid-troposphere
we shall use TMT or tmt and for the lower stratosphere, TLS or tls.
[/quote]
.
http://vortex.nsstc.uah.edu/data/msu/docs/readme.msu