Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
caaa 2000 2000

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 18.9564 	land 	CRU	25.13	0.75
msl 	  3.3436 	global 	COADS	11.69	0.28
qnet 	 20.2641 	ocean 	OAFLUX	14.24	1.42
tp 	 25.4951 	global 	CMAP	38.87	0.65
ewss 	 10.3159 	ocean 	DASILVA	4.03	2.55
nsss 	  5.0870 	ocean 	DASILVA	3.10	1.64
T 	  6.7671 	zonal 	ERA40	38.89	0.17
U 	  3.9423 	zonal 	ERA40	12.07	0.32
V 	  2.3744 	zonal 	ERA40	8.25	0.28
Q 	 16.6751 	zonal 	ERA40	29.41	0.56

Total Performance Index is : 3.4323
Partial PI (atm only) is   : 5.4628

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
caaa 2000 2000

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 16.2003 	land 	CRU	25.13	0.64
msl 	  3.3436 	global 	COADS	11.69	0.28
qnet 	 19.0292 	ocean 	OAFLUX	14.24	1.33
tp 	 25.4951 	global 	CMAP	38.87	0.65
ewss 	 10.5954 	ocean 	DASILVA	4.03	2.62
nsss 	  4.9355 	ocean 	DASILVA	3.10	1.59
SST 	  4.9355 	ocean 	GISS	17.21	0
SSS 	  4.9355 	ocean 	levitus	0.22	0
SICE 	  4.9355 	ocean 	GISS	0.34	0
T 	  6.0306 	zonal 	ERA40	38.89	0.15
U 	  3.7027 	zonal 	ERA40	12.07	0.30
V 	  2.2400 	zonal 	ERA40	8.25	0.27
Q 	 10.3709 	zonal 	ERA40	29.41	0.35

Total Performance Index is : 0.6292
Partial PI (atm only) is   : 0.3771