Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vaaa 1972 1972

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.2348 	land 	CRU	25.13	0.96
msl 	  2.1073 	global 	COADS	11.69	0.18
qnet 	 18.6568 	ocean 	OAFLUX	14.24	1.31
tp 	 23.8853 	global 	CMAP	38.87	0.61
ewss 	 10.7690 	ocean 	DASILVA	4.03	2.67
nsss 	  4.5115 	ocean 	DASILVA	3.10	1.45
T 	 11.5771 	zonal 	ERA40	38.89	0.29
U 	  3.7214 	zonal 	ERA40	12.07	0.30
V 	  2.2415 	zonal 	ERA40	8.25	0.27
Q 	 21.5631 	zonal 	ERA40	29.41	0.73

Total Performance Index is : 3.4438
Partial PI (atm only) is   : 5.4971

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vaaa 1972 1972

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 22.9628 	land 	CRU	25.13	0.91
msl 	  2.1073 	global 	COADS	11.69	0.18
qnet 	 17.4419 	ocean 	OAFLUX	14.24	1.22
tp 	 23.8853 	global 	CMAP	38.87	0.61
ewss 	 11.1995 	ocean 	DASILVA	4.03	2.77
nsss 	  4.2348 	ocean 	DASILVA	3.10	1.36
SST 	  4.2348 	ocean 	GISS	17.21	0
SSS 	  4.2348 	ocean 	levitus	0.22	0
SICE 	  4.2348 	ocean 	GISS	0.34	0
T 	 10.4078 	zonal 	ERA40	38.89	0.26
U 	  3.5146 	zonal 	ERA40	12.07	0.29
V 	  2.1151 	zonal 	ERA40	8.25	0.25
Q 	 15.6088 	zonal 	ERA40	29.41	0.53

Total Performance Index is : 0.6446
Partial PI (atm only) is   : 0.4328