Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 2002 2002

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.5469 	land 	CRU	25.13	0.61
msl 	  1.8567 	global 	COADS	11.69	0.15
qnet 	 20.0654 	ocean 	OAFLUX	14.24	1.40
tp 	 36.7668 	global 	CMAP	38.87	0.94
ewss 	  8.2211 	ocean 	DASILVA	4.03	2.03
nsss 	  5.6469 	ocean 	DASILVA	3.10	1.82
SST 	 40.0612 	ocean 	GISS	17.21	2.32
SSS 	  0.1421 	ocean 	levitus	0.22	0.64
SICE 	1864.1659 	ocean 	GISS	0.34	5482.84
T 	 23.9848 	zonal 	ERA40	38.89	0.61
U 	  3.2911 	zonal 	ERA40	12.07	0.27
V 	  2.3214 	zonal 	ERA40	8.25	0.28
Q 	 25.8697 	zonal 	ERA40	29.41	0.87

Total Performance Index is : 422.6753
Partial PI (atm only) is   : 0.5328

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 2002 2002

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 12.6830 	land 	CRU	25.13	0.50
msl 	  1.8567 	global 	COADS	11.69	0.15
qnet 	 18.8512 	ocean 	OAFLUX	14.24	1.32
tp 	 36.7668 	global 	CMAP	38.87	0.94
ewss 	  8.4904 	ocean 	DASILVA	4.03	2.10
nsss 	  5.1340 	ocean 	DASILVA	3.10	1.65
SST 	 40.0612 	ocean 	GISS	17.21	2.32
SSS 	  0.1421 	ocean 	levitus	0.22	0.64
SICE 	1864.1659 	ocean 	GISS	0.34	5482.84
T 	 23.3837 	zonal 	ERA40	38.89	0.60
U 	  3.1491 	zonal 	ERA40	12.07	0.26
V 	  2.2176 	zonal 	ERA40	8.25	0.26
Q 	 20.5824 	zonal 	ERA40	29.41	0.69

Total Performance Index is : 422.6361
Partial PI (atm only) is   : 0.4857