SIGNAL CONVOLUTION, MIDPOINT OF RANGE, AND ALL THAT

KEVIN KILTY Introduction A guest blogger recently1 made an analysis of the twice per day sampling of maximum and minimum temperature and its relationship to Nyquist rate, in an attempt…

Nyquist, sampling, anomalies and all that

Guest post by Nick Stokes, Every now and then, in climate blogging, one hears a refrain that the traditional min/max daily temperature can’t be used because it “violates Nyquist”. In…

A condensed version of a paper entitled: “Violating Nyquist: Another Source of Significant Error in the Instrumental Temperature Record”.

By William Ward, 1/01/2019 The 4,900-word paper can be downloaded here: https://wattsupwiththat.com/wp-content/uploads/2019/01/Violating-Nyquist-Instrumental-Record-20190112-1Full.pdf The 169-year long instrumental temperature record is built upon 2 measurements taken daily at each monitoring station, specifically the…

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