Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1911 1911

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 28.1923 	land 	CRU	25.13	1.12
msl 	  2.6406 	global 	COADS	11.69	0.22
qnet 	 19.1651 	ocean 	OAFLUX	14.24	1.34
tp 	 38.2763 	global 	CMAP	38.87	0.98
ewss 	  7.7639 	ocean 	DASILVA	4.03	1.92
nsss 	  5.7262 	ocean 	DASILVA	3.10	1.84
SST 	 30.2986 	ocean 	GISS	17.21	1.76
SSS 	  0.1462 	ocean 	levitus	0.22	0.66
SICE 	2483.7786 	ocean 	GISS	0.34	7305.23
T 	 26.2726 	zonal 	ERA40	38.89	0.67
U 	  4.5835 	zonal 	ERA40	12.07	0.37
V 	  2.6791 	zonal 	ERA40	8.25	0.32
Q 	 33.9844 	zonal 	ERA40	29.41	1.15

Total Performance Index is : 562.8907
Partial PI (atm only) is   : 0.6900

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1911 1911

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 26.0773 	land 	CRU	25.13	1.03
msl 	  2.6406 	global 	COADS	11.69	0.22
qnet 	 17.9370 	ocean 	OAFLUX	14.24	1.25
tp 	 38.2763 	global 	CMAP	38.87	0.98
ewss 	  7.6020 	ocean 	DASILVA	4.03	1.88
nsss 	  4.6119 	ocean 	DASILVA	3.10	1.48
SST 	 30.2986 	ocean 	GISS	17.21	1.76
SSS 	  0.1462 	ocean 	levitus	0.22	0.66
SICE 	2483.7786 	ocean 	GISS	0.34	7305.23
T 	 24.3622 	zonal 	ERA40	38.89	0.62
U 	  4.2898 	zonal 	ERA40	12.07	0.35
V 	  2.5510 	zonal 	ERA40	8.25	0.30
Q 	 26.6660 	zonal 	ERA40	29.41	0.90

Total Performance Index is : 562.8200
Partial PI (atm only) is   : 0.6285