Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vaaa 2004 2004

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 16.0308 	land 	CRU	25.13	0.63
msl 	  1.5438 	global 	COADS	11.69	0.13
qnet 	 18.8250 	ocean 	OAFLUX	14.24	1.32
tp 	 25.0501 	global 	CMAP	38.87	0.64
ewss 	  9.8486 	ocean 	DASILVA	4.03	2.44
nsss 	  4.3678 	ocean 	DASILVA	3.10	1.40
T 	  6.0331 	zonal 	ERA40	38.89	0.15
U 	  2.4632 	zonal 	ERA40	12.07	0.20
V 	  1.9287 	zonal 	ERA40	8.25	0.23
Q 	 15.4164 	zonal 	ERA40	29.41	0.52

Total Performance Index is : 3.3584
Partial PI (atm only) is   : 5.4171

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vaaa 2004 2004

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 12.8792 	land 	CRU	25.13	0.51
msl 	  1.5438 	global 	COADS	11.69	0.13
qnet 	 17.5830 	ocean 	OAFLUX	14.24	1.23
tp 	 25.0501 	global 	CMAP	38.87	0.64
ewss 	 10.3718 	ocean 	DASILVA	4.03	2.57
nsss 	  4.1647 	ocean 	DASILVA	3.10	1.34
SST 	  4.1647 	ocean 	GISS	17.21	0
SSS 	  4.1647 	ocean 	levitus	0.22	0
SICE 	  4.1647 	ocean 	GISS	0.34	0
T 	  5.4452 	zonal 	ERA40	38.89	0.14
U 	  2.3160 	zonal 	ERA40	12.07	0.19
V 	  1.8143 	zonal 	ERA40	8.25	0.21
Q 	  9.2876 	zonal 	ERA40	29.41	0.31

Total Performance Index is : 0.5592
Partial PI (atm only) is   : 0.3042