Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vaaa 1987 1987

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 16.9035 	land 	CRU	25.13	0.67
msl 	  1.7185 	global 	COADS	11.69	0.14
qnet 	 20.2955 	ocean 	OAFLUX	14.24	1.42
tp 	 23.8748 	global 	CMAP	38.87	0.61
ewss 	  9.9818 	ocean 	DASILVA	4.03	2.47
nsss 	  5.0733 	ocean 	DASILVA	3.10	1.63
T 	  6.9753 	zonal 	ERA40	38.89	0.17
U 	  2.1590 	zonal 	ERA40	12.07	0.17
V 	  1.9413 	zonal 	ERA40	8.25	0.23
Q 	 19.5172 	zonal 	ERA40	29.41	0.66

Total Performance Index is : 3.3976
Partial PI (atm only) is   : 5.4400

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vaaa 1987 1987

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 13.9828 	land 	CRU	25.13	0.55
msl 	  1.7185 	global 	COADS	11.69	0.14
qnet 	 19.0667 	ocean 	OAFLUX	14.24	1.33
tp 	 23.8748 	global 	CMAP	38.87	0.61
ewss 	 11.3094 	ocean 	DASILVA	4.03	2.80
nsss 	  4.7870 	ocean 	DASILVA	3.10	1.54
SST 	  4.7870 	ocean 	GISS	17.21	0
SSS 	  4.7870 	ocean 	levitus	0.22	0
SICE 	  4.7870 	ocean 	GISS	0.34	0
T 	  6.0335 	zonal 	ERA40	38.89	0.15
U 	  2.0275 	zonal 	ERA40	12.07	0.16
V 	  1.8306 	zonal 	ERA40	8.25	0.22
Q 	 12.9752 	zonal 	ERA40	29.41	0.44

Total Performance Index is : 0.6107
Partial PI (atm only) is   : 0.3242