Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vaaa 1974 1974

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 28.7328 	land 	CRU	25.13	1.14
msl 	  3.1730 	global 	COADS	11.69	0.27
qnet 	 20.1739 	ocean 	OAFLUX	14.24	1.41
tp 	 24.1786 	global 	CMAP	38.87	0.62
ewss 	  9.9200 	ocean 	DASILVA	4.03	2.46
nsss 	  5.0502 	ocean 	DASILVA	3.10	1.62
T 	 15.3154 	zonal 	ERA40	38.89	0.39
U 	  4.8918 	zonal 	ERA40	12.07	0.40
V 	  2.5149 	zonal 	ERA40	8.25	0.30
Q 	 24.7077 	zonal 	ERA40	29.41	0.84

Total Performance Index is : 3.4961
Partial PI (atm only) is   : 5.5528

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vaaa 1974 1974

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 27.9113 	land 	CRU	25.13	1.11
msl 	  3.1730 	global 	COADS	11.69	0.27
qnet 	 18.9981 	ocean 	OAFLUX	14.24	1.33
tp 	 24.1786 	global 	CMAP	38.87	0.62
ewss 	 10.3055 	ocean 	DASILVA	4.03	2.55
nsss 	  4.6603 	ocean 	DASILVA	3.10	1.50
SST 	  4.6603 	ocean 	GISS	17.21	0
SSS 	  4.6603 	ocean 	levitus	0.22	0
SICE 	  4.6603 	ocean 	GISS	0.34	0
T 	 14.0552 	zonal 	ERA40	38.89	0.36
U 	  4.4169 	zonal 	ERA40	12.07	0.36
V 	  2.3653 	zonal 	ERA40	8.25	0.28
Q 	 18.0733 	zonal 	ERA40	29.41	0.61

Total Performance Index is : 0.6915
Partial PI (atm only) is   : 0.5157