Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1994 1994

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 19.7444 	land 	CRU	25.13	0.78
msl 	  2.9612 	global 	COADS	11.69	0.25
qnet 	 19.8842 	ocean 	OAFLUX	14.24	1.39
tp 	 27.2295 	global 	CMAP	38.87	0.70
ewss 	  7.8422 	ocean 	DASILVA	4.03	1.94
nsss 	  6.0327 	ocean 	DASILVA	3.10	1.94
SST 	 30.3552 	ocean 	GISS	17.21	1.76
SSS 	  0.1483 	ocean 	levitus	0.22	0.67
SICE 	2459.0099 	ocean 	GISS	0.34	7232.38
T 	 20.9393 	zonal 	ERA40	38.89	0.53
U 	  3.9609 	zonal 	ERA40	12.07	0.32
V 	  2.4267 	zonal 	ERA40	8.25	0.29
Q 	 30.6951 	zonal 	ERA40	29.41	1.04

Total Performance Index is : 557.2300
Partial PI (atm only) is   : 0.5585

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1994 1994

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 18.4754 	land 	CRU	25.13	0.73
msl 	  2.9612 	global 	COADS	11.69	0.25
qnet 	 18.7062 	ocean 	OAFLUX	14.24	1.31
tp 	 27.2295 	global 	CMAP	38.87	0.70
ewss 	  8.3337 	ocean 	DASILVA	4.03	2.06
nsss 	  5.6640 	ocean 	DASILVA	3.10	1.82
SST 	 30.3552 	ocean 	GISS	17.21	1.76
SSS 	  0.1483 	ocean 	levitus	0.22	0.67
SICE 	2459.0099 	ocean 	GISS	0.34	7232.38
T 	 20.1529 	zonal 	ERA40	38.89	0.51
U 	  3.8201 	zonal 	ERA40	12.07	0.31
V 	  2.3285 	zonal 	ERA40	8.25	0.28
Q 	 24.7488 	zonal 	ERA40	29.41	0.84

Total Performance Index is : 557.2015
Partial PI (atm only) is   : 0.5171