Table 4

Correlation coefficient (r) for seasonal and annual mean temperature for each dataset averaged over the whole region from 1961 to 2001

TypeSeasonal comparison
Annual comparison
SpringSummerAutumnWinter
ERA-20 cm (Mean) 0.671 0.597 0.578 0.407 0.714 
ERA-20 cm (En0) 0.493 0.194 0.251 0.161 0.523 
ERA-20c 0.830 0.867 0.895 0.914 0.879 
ERA-40 0.924 0.943 0.908 0.963 0.923 
20CR 0.654 0.785 0.798 0.875 0.808 
CRUv3.23 0.933 0.964 0.945 0.976 0.950 
TypeSeasonal comparison
Annual comparison
SpringSummerAutumnWinter
ERA-20 cm (Mean) 0.671 0.597 0.578 0.407 0.714 
ERA-20 cm (En0) 0.493 0.194 0.251 0.161 0.523 
ERA-20c 0.830 0.867 0.895 0.914 0.879 
ERA-40 0.924 0.943 0.908 0.963 0.923 
20CR 0.654 0.785 0.798 0.875 0.808 
CRUv3.23 0.933 0.964 0.945 0.976 0.950 
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