Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vaaa 1982 1982

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 22.9297 	land 	CRU	25.13	0.91
msl 	  2.5598 	global 	COADS	11.69	0.21
qnet 	 20.8692 	ocean 	OAFLUX	14.24	1.46
tp 	 23.3746 	global 	CMAP	38.87	0.60
ewss 	 11.1411 	ocean 	DASILVA	4.03	2.76
nsss 	  5.1218 	ocean 	DASILVA	3.10	1.65
T 	  8.4247 	zonal 	ERA40	38.89	0.21
U 	  2.8738 	zonal 	ERA40	12.07	0.23
V 	  1.9162 	zonal 	ERA40	8.25	0.23
Q 	 21.1378 	zonal 	ERA40	29.41	0.71

Total Performance Index is : 3.4592
Partial PI (atm only) is   : 5.4900

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vaaa 1982 1982

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.1756 	land 	CRU	25.13	0.80
msl 	  2.5598 	global 	COADS	11.69	0.21
qnet 	 19.7112 	ocean 	OAFLUX	14.24	1.38
tp 	 23.3746 	global 	CMAP	38.87	0.60
ewss 	 12.3721 	ocean 	DASILVA	4.03	3.07
nsss 	  5.0059 	ocean 	DASILVA	3.10	1.61
SST 	  5.0059 	ocean 	GISS	17.21	0
SSS 	  5.0059 	ocean 	levitus	0.22	0
SICE 	  5.0059 	ocean 	GISS	0.34	0
T 	  7.1921 	zonal 	ERA40	38.89	0.18
U 	  2.5870 	zonal 	ERA40	12.07	0.21
V 	  1.7785 	zonal 	ERA40	8.25	0.21
Q 	 14.6326 	zonal 	ERA40	29.41	0.49

Total Performance Index is : 0.6738
Partial PI (atm only) is   : 0.3857