The Original Temperatures Project

Watts Up With That?

Guest essay by Frank Lansner

Presentation of the Original Temperatures project.

1. Introduction
2. Methods
3. Adjustments of temperature data
3.1. Adjustments: HISTALP – by the Austrian ZAMG
3.2. Adjustments: ECA&D – by the Dutch KNMI
3.3. Adjustments: The BEST project
3.3.1 BEST / Austria
3.3.2 BEST / Denmark
3.3.3 BEST / Hungary
3.3.4 BEST / UHI
3.3.5 BEST prefer unadjusted data
4. Results from original temperature data

1. Introduction
The number of adjustments of temperature data appears overwhelming and often undocumented. Are we facing homogenization of temperature data? Or is it “pasteurization” (= warm treatment) of temperature data?
As a sceptic it is my opinion that we need to know for sure. I therefore started out 18 months ago collecting original temperature data and now I have started presenting the results on

I experienced a lack of will from the national meteorological institutes to freely share the tax paid data I asked for. I even…

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