Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1962 1962

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 17.0312 	land 	CRU	25.13	0.67
msl 	  2.3719 	global 	COADS	11.69	0.20
qnet 	 21.3517 	ocean 	OAFLUX	14.24	1.49
tp 	 36.4250 	global 	CMAP	38.87	0.93
ewss 	  9.3892 	ocean 	DASILVA	4.03	2.32
nsss 	  6.7414 	ocean 	DASILVA	3.10	2.17
SST 	 33.6246 	ocean 	GISS	17.21	1.95
SSS 	  0.1484 	ocean 	levitus	0.22	0.67
SICE 	2290.7709 	ocean 	GISS	0.34	6737.56
T 	 20.7044 	zonal 	ERA40	38.89	0.53
U 	  3.6282 	zonal 	ERA40	12.07	0.30
V 	  3.2166 	zonal 	ERA40	8.25	0.38
Q 	 29.1788 	zonal 	ERA40	29.41	0.99

Total Performance Index is : 519.2430
Partial PI (atm only) is   : 0.5714

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1962 1962

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.4560 	land 	CRU	25.13	0.61
msl 	  2.3719 	global 	COADS	11.69	0.20
qnet 	 20.2368 	ocean 	OAFLUX	14.24	1.42
tp 	 36.4250 	global 	CMAP	38.87	0.93
ewss 	 10.0320 	ocean 	DASILVA	4.03	2.48
nsss 	  6.0784 	ocean 	DASILVA	3.10	1.96
SST 	 33.6246 	ocean 	GISS	17.21	1.95
SSS 	  0.1484 	ocean 	levitus	0.22	0.67
SICE 	2290.7709 	ocean 	GISS	0.34	6737.56
T 	 19.2761 	zonal 	ERA40	38.89	0.49
U 	  3.4553 	zonal 	ERA40	12.07	0.28
V 	  3.0861 	zonal 	ERA40	8.25	0.37
Q 	 23.0277 	zonal 	ERA40	29.41	0.78

Total Performance Index is : 519.2076
Partial PI (atm only) is   : 0.5228