Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1882 1882

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 25.9924 	land 	CRU	25.13	1.03
msl 	  2.6149 	global 	COADS	11.69	0.22
qnet 	 20.3351 	ocean 	OAFLUX	14.24	1.42
tp 	 34.9430 	global 	CMAP	38.87	0.89
ewss 	  7.1836 	ocean 	DASILVA	4.03	1.78
nsss 	  5.7439 	ocean 	DASILVA	3.10	1.85
SST 	 29.8901 	ocean 	GISS	17.21	1.73
SSS 	  0.1509 	ocean 	levitus	0.22	0.68
SICE 	2651.3460 	ocean 	GISS	0.34	7798.07
T 	 25.2286 	zonal 	ERA40	38.89	0.64
U 	  3.0544 	zonal 	ERA40	12.07	0.25
V 	  2.2799 	zonal 	ERA40	8.25	0.27
Q 	 32.6511 	zonal 	ERA40	29.41	1.11

Total Performance Index is : 600.7646
Partial PI (atm only) is   : 0.6300

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1882 1882

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.8004 	land 	CRU	25.13	0.98
msl 	  2.6149 	global 	COADS	11.69	0.22
qnet 	 19.1273 	ocean 	OAFLUX	14.24	1.34
tp 	 34.9430 	global 	CMAP	38.87	0.89
ewss 	  6.9683 	ocean 	DASILVA	4.03	1.72
nsss 	  5.1652 	ocean 	DASILVA	3.10	1.66
SST 	 29.8901 	ocean 	GISS	17.21	1.73
SSS 	  0.1509 	ocean 	levitus	0.22	0.68
SICE 	2651.3460 	ocean 	GISS	0.34	7798.07
T 	 23.0388 	zonal 	ERA40	38.89	0.59
U 	  2.7770 	zonal 	ERA40	12.07	0.23
V 	  2.1421 	zonal 	ERA40	8.25	0.25
Q 	 25.2052 	zonal 	ERA40	29.41	0.85

Total Performance Index is : 600.7084
Partial PI (atm only) is   : 0.5728