The Elements of Water Balance in the Changing Climate in Poland

Table 3

Comparison of modelled and observed precipitation for the city of Poznan referring to second-order statistics: sums of squared differences, ratios of variances, and correlation coefficients (corresponding rank in brackets) and the final ranks for the models based on the precipitation.

Model	Sum of squared differences (model − real) in mm	Ratio of variance of the model to observational variance	Correlation	Final rank
C4IRCA	5583.10 (5)	0.284 (4)	0.123 (5)	5
ETHZ	4971.38 (3)	0.255 (5)	0.362 (4)	4
KNMI	4172.73 (2)	0.503 (3)	0.709 (2)	2
METO-HC	5543.56 (4)	1.096 (2)	0.563 (3)	3
MPI-M-REMO	3619.26 (1)	1.028 (1)	0.846 (1)	1