Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1984 1984

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 21.6659 	land 	CRU	25.13	0.86
msl 	  2.3139 	global 	COADS	11.69	0.19
qnet 	 19.7289 	ocean 	OAFLUX	14.24	1.38
tp 	 37.0859 	global 	CMAP	38.87	0.95
ewss 	  8.4661 	ocean 	DASILVA	4.03	2.10
nsss 	  6.0656 	ocean 	DASILVA	3.10	1.95
SST 	 32.6693 	ocean 	GISS	17.21	1.89
SSS 	  0.1467 	ocean 	levitus	0.22	0.66
SICE 	2121.3088 	ocean 	GISS	0.34	6239.14
T 	 22.7522 	zonal 	ERA40	38.89	0.58
U 	  3.1851 	zonal 	ERA40	12.07	0.26
V 	  2.5796 	zonal 	ERA40	8.25	0.31
Q 	 28.5737 	zonal 	ERA40	29.41	0.97

Total Performance Index is : 480.8646
Partial PI (atm only) is   : 0.5885

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1984 1984

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.1949 	land 	CRU	25.13	0.80
msl 	  2.3139 	global 	COADS	11.69	0.19
qnet 	 18.5194 	ocean 	OAFLUX	14.24	1.30
tp 	 37.0859 	global 	CMAP	38.87	0.95
ewss 	  9.0578 	ocean 	DASILVA	4.03	2.24
nsss 	  5.6924 	ocean 	DASILVA	3.10	1.83
SST 	 32.6693 	ocean 	GISS	17.21	1.89
SSS 	  0.1467 	ocean 	levitus	0.22	0.66
SICE 	2121.3088 	ocean 	GISS	0.34	6239.14
T 	 21.7418 	zonal 	ERA40	38.89	0.55
U 	  3.0358 	zonal 	ERA40	12.07	0.25
V 	  2.4710 	zonal 	ERA40	8.25	0.29
Q 	 22.6780 	zonal 	ERA40	29.41	0.77

Total Performance Index is : 480.8353
Partial PI (atm only) is   : 0.5428