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NOAA, January 1998. For land and ocean surfaces combined, the average global temperature of the calendar year 1907 is 0·50ºC below the average global temperature of 16·50ºC for the thirty calendar years from 1961 to 1990, such that the annual global temperature of 1907 is 16·00ºC, which is the lowest annual global temperature for any calendar year from 1900 to 1997.
NOAA, January 2017. For land and ocean surfaces combined, the average global temperature of the calendar year 2016 is 0·94ºC above the average global temperature of 13·9ºC for the one-hundred calendar years from 1901 to 2000, such that the annual global temperature of 2016 is 14·84ºC, which is the highest annual global temperature for any calendar year from 1880 to 2016.

Sunday, 6 August 2017

1886. HadCrut4.

Three claims for the global historical surface temperature anomaly of the January-to-December calendar year 1886:-

1st claim.  “It could be as low as, but no lower than, -0·60ºC, or it could be as high as, but no higher than, -0·12ºC.
2nd claim. It could be as low as, but no lower than, -0·49ºC, or it could be as high as, but no higher than, -0·22ºC.
3rd claim. It could be as low as, but no lower than, -0·41ºC, or it could be as high as, but no higher than, -0·27ºC.

The monthly series of  HadCrut4 version 4·0·0·0 entails the 1st claim. The annual series  of  HadCrut4 version 4·0·0·0 entails the 2nd claim. The annual series of  HadCrut4 version 4·0·0·0decadally smoothed by the application of a 21 point binomial filter entails the 3rd claim. Alternative link for HadCrut4 version 4·0·0·0. Question: The anomaly for 1886 could be as low as, but no lower than (what number ? of degrees centigrade), or it could be as high as, but no higher than, (what number ? of degrees centigrade)? 

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