Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1998 1998

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	296.9027 	land 	CRU	25.13	11.81
msl 	  4.5304 	global 	COADS	11.69	0.38
qnet 	 22.0952 	ocean 	OAFLUX	14.24	1.55
tp 	 69.1881 	global 	CMAP	38.87	1.77
ewss 	  9.7155 	ocean 	DASILVA	4.03	2.41
nsss 	  6.9136 	ocean 	DASILVA	3.10	2.23
SST 	428.9716 	ocean 	GISS	17.21	24.92
SSS 	  0.3752 	ocean 	levitus	0.22	1.70
SICE 	  8.6710 	ocean 	GISS	0.34	25.50
T 	558.9088 	zonal 	ERA40	38.89	14.37
U 	  8.3429 	zonal 	ERA40	12.07	0.69
V 	  4.6108 	zonal 	ERA40	8.25	0.55
Q 	614.0631 	zonal 	ERA40	29.41	20.87

Total Performance Index is : 8.3653
Partial PI (atm only) is   : 7.2057

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1998 1998

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	216.4679 	land 	CRU	25.13	8.61
msl 	  4.5304 	global 	COADS	11.69	0.38
qnet 	 20.9829 	ocean 	OAFLUX	14.24	1.47
tp 	 69.1881 	global 	CMAP	38.87	1.77
ewss 	  9.9783 	ocean 	DASILVA	4.03	2.47
nsss 	  6.5416 	ocean 	DASILVA	3.10	2.11
SST 	428.9716 	ocean 	GISS	17.21	24.92
SSS 	  0.3752 	ocean 	levitus	0.22	1.70
SICE 	  8.6710 	ocean 	GISS	0.34	25.50
T 	557.7148 	zonal 	ERA40	38.89	14.34
U 	  6.6761 	zonal 	ERA40	12.07	0.55
V 	  4.5257 	zonal 	ERA40	8.25	0.54
Q 	612.0210 	zonal 	ERA40	29.41	20.80

Total Performance Index is : 8.0892
Partial PI (atm only) is   : 6.7128