Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vaaa 2000 2000

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 19.5425 	land 	CRU	25.13	0.77
msl 	  2.5113 	global 	COADS	11.69	0.21
qnet 	 20.3213 	ocean 	OAFLUX	14.24	1.42
tp 	 25.7802 	global 	CMAP	38.87	0.66
ewss 	 10.4764 	ocean 	DASILVA	4.03	2.59
nsss 	  4.8534 	ocean 	DASILVA	3.10	1.56
T 	  6.5506 	zonal 	ERA40	38.89	0.16
U 	  3.4056 	zonal 	ERA40	12.07	0.28
V 	  2.5430 	zonal 	ERA40	8.25	0.30
Q 	 16.9603 	zonal 	ERA40	29.41	0.57

Total Performance Index is : 3.4246
Partial PI (atm only) is   : 5.4585

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vaaa 2000 2000

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 17.1774 	land 	CRU	25.13	0.68
msl 	  2.5113 	global 	COADS	11.69	0.21
qnet 	 19.0999 	ocean 	OAFLUX	14.24	1.34
tp 	 25.7802 	global 	CMAP	38.87	0.66
ewss 	 11.0362 	ocean 	DASILVA	4.03	2.73
nsss 	  4.3658 	ocean 	DASILVA	3.10	1.40
SST 	  4.3658 	ocean 	GISS	17.21	0
SSS 	  4.3658 	ocean 	levitus	0.22	0
SICE 	  4.3658 	ocean 	GISS	0.34	0
T 	  5.7985 	zonal 	ERA40	38.89	0.14
U 	  3.2521 	zonal 	ERA40	12.07	0.26
V 	  2.3926 	zonal 	ERA40	8.25	0.29
Q 	 10.7350 	zonal 	ERA40	29.41	0.36

Total Performance Index is : 0.6207
Partial PI (atm only) is   : 0.3714