Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1927 1927

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.0249 	land 	CRU	25.13	0.91
msl 	  2.6060 	global 	COADS	11.69	0.22
qnet 	 20.1906 	ocean 	OAFLUX	14.24	1.41
tp 	 35.3785 	global 	CMAP	38.87	0.91
ewss 	  7.4322 	ocean 	DASILVA	4.03	1.84
nsss 	  5.1299 	ocean 	DASILVA	3.10	1.65
SST 	 29.8571 	ocean 	GISS	17.21	1.73
SSS 	  0.1385 	ocean 	levitus	0.22	0.62
SICE 	2500.8878 	ocean 	GISS	0.34	7355.55
T 	 22.8101 	zonal 	ERA40	38.89	0.58
U 	  3.2913 	zonal 	ERA40	12.07	0.27
V 	  2.5012 	zonal 	ERA40	8.25	0.30
Q 	 30.9731 	zonal 	ERA40	29.41	1.05

Total Performance Index is : 566.6953
Partial PI (atm only) is   : 0.6057

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1927 1927

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 22.2213 	land 	CRU	25.13	0.88
msl 	  2.6060 	global 	COADS	11.69	0.22
qnet 	 18.9943 	ocean 	OAFLUX	14.24	1.33
tp 	 35.3785 	global 	CMAP	38.87	0.91
ewss 	  7.3950 	ocean 	DASILVA	4.03	1.83
nsss 	  4.8741 	ocean 	DASILVA	3.10	1.57
SST 	 29.8571 	ocean 	GISS	17.21	1.73
SSS 	  0.1385 	ocean 	levitus	0.22	0.62
SICE 	2500.8878 	ocean 	GISS	0.34	7355.55
T 	 20.9980 	zonal 	ERA40	38.89	0.53
U 	  3.0855 	zonal 	ERA40	12.07	0.25
V 	  2.3768 	zonal 	ERA40	8.25	0.28
Q 	 23.9962 	zonal 	ERA40	29.41	0.81

Total Performance Index is : 566.6546
Partial PI (atm only) is   : 0.5542