Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
caaa 1999 1999

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 17.6826 	land 	CRU	25.13	0.70
msl 	  3.3857 	global 	COADS	11.69	0.28
qnet 	 20.5950 	ocean 	OAFLUX	14.24	1.44
tp 	 26.3383 	global 	CMAP	38.87	0.67
ewss 	 11.4271 	ocean 	DASILVA	4.03	2.83
nsss 	  5.4991 	ocean 	DASILVA	3.10	1.77
T 	  5.9287 	zonal 	ERA40	38.89	0.15
U 	  4.9913 	zonal 	ERA40	12.07	0.41
V 	  2.5534 	zonal 	ERA40	8.25	0.30
Q 	 15.6420 	zonal 	ERA40	29.41	0.53

Total Performance Index is : 3.4676
Partial PI (atm only) is   : 5.4542

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
caaa 1999 1999

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 14.1363 	land 	CRU	25.13	0.56
msl 	  3.3857 	global 	COADS	11.69	0.28
qnet 	 19.4095 	ocean 	OAFLUX	14.24	1.36
tp 	 26.3383 	global 	CMAP	38.87	0.67
ewss 	 12.2052 	ocean 	DASILVA	4.03	3.02
nsss 	  5.0741 	ocean 	DASILVA	3.10	1.63
SST 	  5.0741 	ocean 	GISS	17.21	0
SSS 	  5.0741 	ocean 	levitus	0.22	0
SICE 	  5.0741 	ocean 	GISS	0.34	0
T 	  5.2377 	zonal 	ERA40	38.89	0.13
U 	  4.7339 	zonal 	ERA40	12.07	0.39
V 	  2.4378 	zonal 	ERA40	8.25	0.29
Q 	  9.4587 	zonal 	ERA40	29.41	0.32

Total Performance Index is : 0.6653
Partial PI (atm only) is   : 0.3771