Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
caaa 1975 1975

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 29.0241 	land 	CRU	25.13	1.15
msl 	  2.1777 	global 	COADS	11.69	0.18
qnet 	 20.2004 	ocean 	OAFLUX	14.24	1.41
tp 	 23.6988 	global 	CMAP	38.87	0.60
ewss 	  9.7558 	ocean 	DASILVA	4.03	2.42
nsss 	  4.9683 	ocean 	DASILVA	3.10	1.60
T 	 15.2841 	zonal 	ERA40	38.89	0.39
U 	  4.3500 	zonal 	ERA40	12.07	0.36
V 	  2.2237 	zonal 	ERA40	8.25	0.26
Q 	 24.1140 	zonal 	ERA40	29.41	0.81

Total Performance Index is : 3.4753
Partial PI (atm only) is   : 5.5342

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
caaa 1975 1975

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 25.7108 	land 	CRU	25.13	1.02
msl 	  2.1777 	global 	COADS	11.69	0.18
qnet 	 18.9508 	ocean 	OAFLUX	14.24	1.33
tp 	 23.6988 	global 	CMAP	38.87	0.60
ewss 	 10.5643 	ocean 	DASILVA	4.03	2.62
nsss 	  4.5675 	ocean 	DASILVA	3.10	1.47
SST 	  4.5675 	ocean 	GISS	17.21	0
SSS 	  4.5675 	ocean 	levitus	0.22	0
SICE 	  4.5675 	ocean 	GISS	0.34	0
T 	 13.9422 	zonal 	ERA40	38.89	0.35
U 	  3.9771 	zonal 	ERA40	12.07	0.32
V 	  2.0969 	zonal 	ERA40	8.25	0.25
Q 	 17.2652 	zonal 	ERA40	29.41	0.58

Total Performance Index is : 0.6707
Partial PI (atm only) is   : 0.4714