Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1883 1883

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 28.7972 	land 	CRU	25.13	1.14
msl 	  2.5599 	global 	COADS	11.69	0.21
qnet 	 22.3759 	ocean 	OAFLUX	14.24	1.57
tp 	 37.8591 	global 	CMAP	38.87	0.97
ewss 	  7.1740 	ocean 	DASILVA	4.03	1.78
nsss 	  5.7279 	ocean 	DASILVA	3.10	1.84
SST 	 30.7336 	ocean 	GISS	17.21	1.78
SSS 	  0.1536 	ocean 	levitus	0.22	0.69
SICE 	2717.1992 	ocean 	GISS	0.34	7991.76
T 	 26.1718 	zonal 	ERA40	38.89	0.67
U 	  3.4841 	zonal 	ERA40	12.07	0.28
V 	  2.6784 	zonal 	ERA40	8.25	0.32
Q 	 33.9695 	zonal 	ERA40	29.41	1.15

Total Performance Index is : 615.7046
Partial PI (atm only) is   : 0.6771

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1883 1883

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 27.6820 	land 	CRU	25.13	1.10
msl 	  2.5599 	global 	COADS	11.69	0.21
qnet 	 21.2539 	ocean 	OAFLUX	14.24	1.49
tp 	 37.8591 	global 	CMAP	38.87	0.97
ewss 	  7.3783 	ocean 	DASILVA	4.03	1.83
nsss 	  5.3557 	ocean 	DASILVA	3.10	1.72
SST 	 30.7336 	ocean 	GISS	17.21	1.78
SSS 	  0.1536 	ocean 	levitus	0.22	0.69
SICE 	2717.1992 	ocean 	GISS	0.34	7991.76
T 	 23.4261 	zonal 	ERA40	38.89	0.60
U 	  3.1710 	zonal 	ERA40	12.07	0.26
V 	  2.5557 	zonal 	ERA40	8.25	0.30
Q 	 26.5999 	zonal 	ERA40	29.41	0.90

Total Performance Index is : 615.6623
Partial PI (atm only) is   : 0.6200