Test:
Reference: Observation and Reanalysis

ANN Mean

Variables	Unit	Test_mean	Ref._mean	Mean_Bias	Test_STD	Ref._STD	RMSE	Correlation
TREFHT global ERA5	DegC	-78579.724	-78493.87	-85.853	3820.332	3835.938	350.198	0.996