Thursday, 3 August 2017

1873. HadCrut4.

Three claims for the “global historical surface temperature anomaly” of the January-to-December calendar year 1873 as per HadCrut4 version 4·0·0·0.

1st claim.  The global temperature anomaly is between -0·61(±0)ºC and +0·02(±0)ºC.
2nd claim. The global temperature anomaly is between -0·46(±0)ºC and -0·13(±0)ºC.
3rd claim.  The global temperature anomaly is between -0·39(±0)ºC and -0·22(±0)ºC.

The monthly series entails the 1st claim. The annual series entails the 2nd claim. The “decadally smoothed” annual series entails the 3rd claim. Which claims are true? Which claims are false? Which claims are neither true nor false?  Alternative link for version 4·0·0·0.

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