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Autoscale and Fort Yukon
Automatic plot range setting proved very easy to do since the total range in the entire dataset is always known.
(ceiling(max(abs(tmin),abs(tmax)))/5)*5 and then + and – the result as the range
This seems to give +-25C for land, surprisingly, +-10 for mid troposphere and +-30C for lower stratosphere.
Hanging question: why is the mid trop range small? Also why such bizarre looking figures?
The max/min figures, not grabbed them all yet
- UAH lower strat +26C 2009-02, -20.81C 1997-03
- UAH mid trop +6.99C 2006-01, -6.66C 1989-02
- UAH lower trop +10.39C 1981-02, -9.75C 1982-01
- GHCN R Vose +19.27 1950-01, -20.21 1917-12 (Fort Yukon, Alaska see footnote)
- Hadcrut3 +19.5 1950-01, -20.9 1917-12
- Crutem3 +19.5 1950-01, -20.9 1917-12 (should be the same, land only)
Now in the above we start to see the commonality of datasets.
The Vose all time minimum coincides with the lat/long grid cell for Fort Yukon
Since I can pull out a timeseries here it is
1917.792 -0.12 1917.875 -2.87 1917.958 -20.21 1918.042 4.94 1918.125 -3.07
Aspects of Winter Temperatures in Interior Alaska, N.A. Streten, undated, last reference 1967
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