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The pause that was and then was not!, page-68

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genericmicrobe

4,175 Posts.

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19/03/18

00:38

Post #: 31844581
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Originally posted by tristanc ↑

Jopo, jopo, jopo. Word-salad chef extraordinaire.

Let's do a little cross-check, shall we?

Here are the RSS C10 and C11 trends, with weighting functions (on the left) peaking at 20km and 25 km respectively. Both well and truly lower stratosphere, but differing from TLS in that contribution from the troposphere is greatly reduced.
View attachment 1016656
View attachment 1016659

Now here are the RATPAC data covering similar altitudes (70 mbar ~ 18.5 km; 50 mbar ~ 20.5 km; 30 mbar ~24 km), split up into tropics and NH/SH extratropics. The trends work out to approximately -0.5 C/decade for the tropics, and -0.33 C/decade for the extratropics - very much in agreement with the shorter-term datasets from RSS.

View attachment 1016668
View attachment 1016665 View attachment 1016662

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There’s surely a step change in the early ‘90s ... is this taken into consideration with the trend quoted?
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