Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vaaa 2003 2003

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 13.3341 	land 	CRU	25.13	0.53
msl 	  1.2006 	global 	COADS	11.69	0.10
qnet 	 20.1569 	ocean 	OAFLUX	14.24	1.41
tp 	 23.6496 	global 	CMAP	38.87	0.60
ewss 	 10.1820 	ocean 	DASILVA	4.03	2.52
nsss 	  4.3663 	ocean 	DASILVA	3.10	1.40
T 	  6.0137 	zonal 	ERA40	38.89	0.15
U 	  2.8029 	zonal 	ERA40	12.07	0.23
V 	  2.2190 	zonal 	ERA40	8.25	0.26
Q 	 15.3276 	zonal 	ERA40	29.41	0.52

Total Performance Index is : 3.3630
Partial PI (atm only) is   : 5.3928

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vaaa 2003 2003

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 10.4337 	land 	CRU	25.13	0.41
msl 	  1.2006 	global 	COADS	11.69	0.10
qnet 	 19.0128 	ocean 	OAFLUX	14.24	1.33
tp 	 23.6496 	global 	CMAP	38.87	0.60
ewss 	 11.3092 	ocean 	DASILVA	4.03	2.80
nsss 	  3.9180 	ocean 	DASILVA	3.10	1.26
SST 	  3.9180 	ocean 	GISS	17.21	0
SSS 	  3.9180 	ocean 	levitus	0.22	0
SICE 	  3.9180 	ocean 	GISS	0.34	0
T 	  5.3166 	zonal 	ERA40	38.89	0.13
U 	  2.6852 	zonal 	ERA40	12.07	0.22
V 	  2.1034 	zonal 	ERA40	8.25	0.25
Q 	  9.0639 	zonal 	ERA40	29.41	0.30

Total Performance Index is : 0.5692
Partial PI (atm only) is   : 0.2871