Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1885 1885

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 38.5020 	land 	CRU	25.13	1.53
msl 	  2.2692 	global 	COADS	11.69	0.19
qnet 	 21.4951 	ocean 	OAFLUX	14.24	1.50
tp 	 33.8096 	global 	CMAP	38.87	0.86
ewss 	  7.8191 	ocean 	DASILVA	4.03	1.94
nsss 	  5.0762 	ocean 	DASILVA	3.10	1.63
SST 	 29.5866 	ocean 	GISS	17.21	1.71
SSS 	  0.1687 	ocean 	levitus	0.22	0.76
SICE 	2864.4142 	ocean 	GISS	0.34	8424.74
T 	 33.5606 	zonal 	ERA40	38.89	0.86
U 	  4.5837 	zonal 	ERA40	12.07	0.37
V 	  2.7735 	zonal 	ERA40	8.25	0.33
Q 	 38.8680 	zonal 	ERA40	29.41	1.32

Total Performance Index is : 649.0569
Partial PI (atm only) is   : 0.7800

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1885 1885

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 35.3123 	land 	CRU	25.13	1.40
msl 	  2.2692 	global 	COADS	11.69	0.19
qnet 	 20.3696 	ocean 	OAFLUX	14.24	1.43
tp 	 33.8096 	global 	CMAP	38.87	0.86
ewss 	  7.7952 	ocean 	DASILVA	4.03	1.93
nsss 	  4.1742 	ocean 	DASILVA	3.10	1.34
SST 	 29.5866 	ocean 	GISS	17.21	1.71
SSS 	  0.1687 	ocean 	levitus	0.22	0.76
SICE 	2864.4142 	ocean 	GISS	0.34	8424.74
T 	 30.8791 	zonal 	ERA40	38.89	0.79
U 	  4.1609 	zonal 	ERA40	12.07	0.34
V 	  2.6372 	zonal 	ERA40	8.25	0.31
Q 	 31.6450 	zonal 	ERA40	29.41	1.07

Total Performance Index is : 648.9900
Partial PI (atm only) is   : 0.7085