Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vaaa 1980 1980

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.4796 	land 	CRU	25.13	0.81
msl 	  1.9105 	global 	COADS	11.69	0.16
qnet 	 19.0599 	ocean 	OAFLUX	14.24	1.33
tp 	 23.2467 	global 	CMAP	38.87	0.59
ewss 	 10.3996 	ocean 	DASILVA	4.03	2.58
nsss 	  4.6704 	ocean 	DASILVA	3.10	1.50
T 	  8.9121 	zonal 	ERA40	38.89	0.22
U 	  2.3786 	zonal 	ERA40	12.07	0.19
V 	  1.8412 	zonal 	ERA40	8.25	0.22
Q 	 19.8742 	zonal 	ERA40	29.41	0.67

Total Performance Index is : 3.4053
Partial PI (atm only) is   : 5.4614

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vaaa 1980 1980

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 17.0716 	land 	CRU	25.13	0.67
msl 	  1.9105 	global 	COADS	11.69	0.16
qnet 	 17.8436 	ocean 	OAFLUX	14.24	1.25
tp 	 23.2467 	global 	CMAP	38.87	0.59
ewss 	 10.6931 	ocean 	DASILVA	4.03	2.65
nsss 	  4.2414 	ocean 	DASILVA	3.10	1.36
SST 	  4.2414 	ocean 	GISS	17.21	0
SSS 	  4.2414 	ocean 	levitus	0.22	0
SICE 	  4.2414 	ocean 	GISS	0.34	0
T 	  7.7972 	zonal 	ERA40	38.89	0.20
U 	  2.1620 	zonal 	ERA40	12.07	0.17
V 	  1.7066 	zonal 	ERA40	8.25	0.20
Q 	 13.5097 	zonal 	ERA40	29.41	0.45

Total Performance Index is : 0.5923
Partial PI (atm only) is   : 0.3485