Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1992 1992

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	300.4253 	land 	CRU	25.13	11.95
msl 	  4.2886 	global 	COADS	11.69	0.36
qnet 	 21.2007 	ocean 	OAFLUX	14.24	1.48
tp 	 76.7028 	global 	CMAP	38.87	1.97
ewss 	  9.8070 	ocean 	DASILVA	4.03	2.43
nsss 	  7.4558 	ocean 	DASILVA	3.10	2.40
SST 	403.9331 	ocean 	GISS	17.21	23.47
SSS 	  0.3942 	ocean 	levitus	0.22	1.79
SICE 	 25.9994 	ocean 	GISS	0.34	76.46
T 	538.8145 	zonal 	ERA40	38.89	13.85
U 	  8.9184 	zonal 	ERA40	12.07	0.73
V 	  4.3622 	zonal 	ERA40	8.25	0.52
Q 	570.2102 	zonal 	ERA40	29.41	19.38

Total Performance Index is : 12.0607
Partial PI (atm only) is   : 6.9657

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1992 1992

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	235.7039 	land 	CRU	25.13	9.37
msl 	  4.2886 	global 	COADS	11.69	0.36
qnet 	 20.1401 	ocean 	OAFLUX	14.24	1.41
tp 	 76.7028 	global 	CMAP	38.87	1.97
ewss 	 10.6612 	ocean 	DASILVA	4.03	2.64
nsss 	  6.4098 	ocean 	DASILVA	3.10	2.06
SST 	403.9331 	ocean 	GISS	17.21	23.47
SSS 	  0.3942 	ocean 	levitus	0.22	1.79
SICE 	 25.9994 	ocean 	GISS	0.34	76.46
T 	537.6722 	zonal 	ERA40	38.89	13.82
U 	  7.2196 	zonal 	ERA40	12.07	0.59
V 	  4.2555 	zonal 	ERA40	8.25	0.51
Q 	568.3378 	zonal 	ERA40	29.41	19.32

Total Performance Index is : 11.8284
Partial PI (atm only) is   : 6.5628