Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1924 1924

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 25.2662 	land 	CRU	25.13	1.00
msl 	  2.6352 	global 	COADS	11.69	0.22
qnet 	 20.5492 	ocean 	OAFLUX	14.24	1.44
tp 	 37.1521 	global 	CMAP	38.87	0.95
ewss 	  7.8427 	ocean 	DASILVA	4.03	1.94
nsss 	  5.9748 	ocean 	DASILVA	3.10	1.92
SST 	 30.2987 	ocean 	GISS	17.21	1.76
SSS 	  0.1597 	ocean 	levitus	0.22	0.72
SICE 	2374.6766 	ocean 	GISS	0.34	6984.34
T 	 24.8696 	zonal 	ERA40	38.89	0.63
U 	  4.0627 	zonal 	ERA40	12.07	0.33
V 	  2.6326 	zonal 	ERA40	8.25	0.31
Q 	 33.7725 	zonal 	ERA40	29.41	1.14

Total Performance Index is : 538.2076
Partial PI (atm only) is   : 0.6542

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1924 1924

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.1901 	land 	CRU	25.13	0.96
msl 	  2.6352 	global 	COADS	11.69	0.22
qnet 	 19.3672 	ocean 	OAFLUX	14.24	1.36
tp 	 37.1521 	global 	CMAP	38.87	0.95
ewss 	  7.7814 	ocean 	DASILVA	4.03	1.93
nsss 	  5.5257 	ocean 	DASILVA	3.10	1.78
SST 	 30.2987 	ocean 	GISS	17.21	1.76
SSS 	  0.1597 	ocean 	levitus	0.22	0.72
SICE 	2374.6766 	ocean 	GISS	0.34	6984.34
T 	 23.0427 	zonal 	ERA40	38.89	0.59
U 	  3.7216 	zonal 	ERA40	12.07	0.30
V 	  2.5176 	zonal 	ERA40	8.25	0.30
Q 	 26.6673 	zonal 	ERA40	29.41	0.90

Total Performance Index is : 538.1623
Partial PI (atm only) is   : 0.6028