Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vaaa 1978 1978

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.9236 	land 	CRU	25.13	0.99
msl 	  1.5763 	global 	COADS	11.69	0.13
qnet 	 19.5965 	ocean 	OAFLUX	14.24	1.37
tp 	 25.0028 	global 	CMAP	38.87	0.64
ewss 	 10.4017 	ocean 	DASILVA	4.03	2.58
nsss 	  5.1015 	ocean 	DASILVA	3.10	1.64
T 	 11.3390 	zonal 	ERA40	38.89	0.29
U 	  2.4226 	zonal 	ERA40	12.07	0.20
V 	  2.5294 	zonal 	ERA40	8.25	0.30
Q 	 21.9020 	zonal 	ERA40	29.41	0.74

Total Performance Index is : 3.4523
Partial PI (atm only) is   : 5.5000

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vaaa 1978 1978

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.9993 	land 	CRU	25.13	0.83
msl 	  1.5763 	global 	COADS	11.69	0.13
qnet 	 18.3447 	ocean 	OAFLUX	14.24	1.28
tp 	 25.0028 	global 	CMAP	38.87	0.64
ewss 	 11.8520 	ocean 	DASILVA	4.03	2.94
nsss 	  4.5705 	ocean 	DASILVA	3.10	1.47
SST 	  4.5705 	ocean 	GISS	17.21	0
SSS 	  4.5705 	ocean 	levitus	0.22	0
SICE 	  4.5705 	ocean 	GISS	0.34	0
T 	 10.1325 	zonal 	ERA40	38.89	0.26
U 	  2.2321 	zonal 	ERA40	12.07	0.18
V 	  2.3843 	zonal 	ERA40	8.25	0.28
Q 	 15.0701 	zonal 	ERA40	29.41	0.51

Total Performance Index is : 0.6553
Partial PI (atm only) is   : 0.4042