Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1955 1955

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.4313 	land 	CRU	25.13	0.61
msl 	  3.0553 	global 	COADS	11.69	0.26
qnet 	 21.2201 	ocean 	OAFLUX	14.24	1.49
tp 	 31.7385 	global 	CMAP	38.87	0.81
ewss 	  9.4518 	ocean 	DASILVA	4.03	2.34
nsss 	  6.5407 	ocean 	DASILVA	3.10	2.10
SST 	 34.2748 	ocean 	GISS	17.21	1.99
SSS 	  0.1347 	ocean 	levitus	0.22	0.61
SICE 	2239.8904 	ocean 	GISS	0.34	6587.91
T 	 22.3475 	zonal 	ERA40	38.89	0.57
U 	  4.0086 	zonal 	ERA40	12.07	0.33
V 	  2.6862 	zonal 	ERA40	8.25	0.32
Q 	 26.7243 	zonal 	ERA40	29.41	0.90

Total Performance Index is : 507.7107
Partial PI (atm only) is   : 0.5428

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1955 1955

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 13.2285 	land 	CRU	25.13	0.52
msl 	  3.0553 	global 	COADS	11.69	0.26
qnet 	 20.1018 	ocean 	OAFLUX	14.24	1.41
tp 	 31.7385 	global 	CMAP	38.87	0.81
ewss 	  9.4835 	ocean 	DASILVA	4.03	2.35
nsss 	  5.9634 	ocean 	DASILVA	3.10	1.92
SST 	 34.2748 	ocean 	GISS	17.21	1.99
SSS 	  0.1347 	ocean 	levitus	0.22	0.61
SICE 	2239.8904 	ocean 	GISS	0.34	6587.91
T 	 20.7862 	zonal 	ERA40	38.89	0.53
U 	  3.8008 	zonal 	ERA40	12.07	0.31
V 	  2.5962 	zonal 	ERA40	8.25	0.31
Q 	 20.2410 	zonal 	ERA40	29.41	0.68

Total Performance Index is : 507.6623
Partial PI (atm only) is   : 0.4885