Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1934 1934

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.3707 	land 	CRU	25.13	0.81
msl 	  2.2105 	global 	COADS	11.69	0.18
qnet 	 19.4531 	ocean 	OAFLUX	14.24	1.36
tp 	 34.4655 	global 	CMAP	38.87	0.88
ewss 	  7.2349 	ocean 	DASILVA	4.03	1.79
nsss 	  5.5930 	ocean 	DASILVA	3.10	1.80
SST 	 29.5007 	ocean 	GISS	17.21	1.71
SSS 	  0.1315 	ocean 	levitus	0.22	0.59
SICE 	2400.2709 	ocean 	GISS	0.34	7059.62
T 	 22.8172 	zonal 	ERA40	38.89	0.58
U 	  3.1509 	zonal 	ERA40	12.07	0.26
V 	  2.1697 	zonal 	ERA40	8.25	0.26
Q 	 30.1635 	zonal 	ERA40	29.41	1.02

Total Performance Index is : 543.9123
Partial PI (atm only) is   : 0.5700

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1934 1934

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 19.0772 	land 	CRU	25.13	0.75
msl 	  2.2105 	global 	COADS	11.69	0.18
qnet 	 18.2230 	ocean 	OAFLUX	14.24	1.27
tp 	 34.4655 	global 	CMAP	38.87	0.88
ewss 	  7.0977 	ocean 	DASILVA	4.03	1.76
nsss 	  4.7153 	ocean 	DASILVA	3.10	1.52
SST 	 29.5007 	ocean 	GISS	17.21	1.71
SSS 	  0.1315 	ocean 	levitus	0.22	0.59
SICE 	2400.2709 	ocean 	GISS	0.34	7059.62
T 	 21.0599 	zonal 	ERA40	38.89	0.54
U 	  2.7781 	zonal 	ERA40	12.07	0.23
V 	  2.0655 	zonal 	ERA40	8.25	0.25
Q 	 23.2363 	zonal 	ERA40	29.41	0.79

Total Performance Index is : 543.8530
Partial PI (atm only) is   : 0.5171