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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Brumar89 who wrote (863225)	6/7/2015 1:49:29 PM
From: Wharf Rat	Read Replies (2) \| Respond to of 1588209

I see you forgot to read the article, which is too bad, cuz it has this really artsy graph, which looks like an Escher print. Somewhere after that, you find The biggest change in the dataset is that NOOA now uses the raw data of the land temperature database of the International Surface Temperature Initiative (ISTI). (Disclosure, I am member of the ISTI.) This dataset contains much more stations than the previously used Global Historical Climate Network (GHCNv3) dataset. (The land temperatures were homogenized with the same Pairwise Homogenization Algorithm (PHA) as before.) The new trend in the land temperature is a little larger over the full period; see both graphs above. This was to be expected. The ISTI dataset contains much more stations and is now similar to the one of Berkeley Earth, which already had a somewhat stronger temperature trend. Furthermore, we know that there is a cooling bias in the land surface temperatures and with more stations it is easier to see data problems by comparing stations with each other and relative homogenization methods can remove a larger part of this trend bias. "How about not doing fake corrections at all?" Sure? Why not? Let's keep a weather station in the middle of an airport runway, instead of moving it 1/2 mile and calibrating the new site to the former. Let's keep collecting data at the wrong time of day. "it's an illusion to think you can make it better by adjusting it." I realize that. That's why I let the experts do it for me. Blow your nose, and dry your tears.