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Politics : Politics of Energy

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To: Brumar89 who wrote (68001)	1/19/2016 5:23:53 PM
From: Alastair McIntosh	Read Replies (2) of 86355

satellite measurements were superior. Carl Mears, Vice President and Senior Research Scientist at RSS believes that surface temperature measurements are more reliable than satellite measurements. Measurement Errors: As a data scientist, I am among the first to acknowledge that all climate datasets likely contain some errors. However, I have a hard time believing that both the satellite and the surface temperature datasets have errors large enough to account for the model/observation differences. For example, the global trend uncertainty (2-sigma) for the global TLT trend is around 0.03 K/decade (Mears et al. 2011). Even if 0.03 K/decade were added to the best-estimate trend value of 0.123 K/decade, it would still be at the extreme low end of the model trends. A similar, but stronger case can be made using surface temperature datasets, which I consider to be more reliable than satellite datasets (they certainly agree with each other better than the various satellite datasets do!). So I don’t think the problem can be explained fully by measurement errors. remss.com

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