Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1930 1930

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 25.5470 	land 	CRU	25.13	1.01
msl 	  2.9698 	global 	COADS	11.69	0.25
qnet 	 20.0508 	ocean 	OAFLUX	14.24	1.40
tp 	 37.7457 	global 	CMAP	38.87	0.97
ewss 	  8.7734 	ocean 	DASILVA	4.03	2.17
nsss 	  5.7012 	ocean 	DASILVA	3.10	1.83
SST 	 28.7827 	ocean 	GISS	17.21	1.67
SSS 	  0.1453 	ocean 	levitus	0.22	0.66
SICE 	2464.2928 	ocean 	GISS	0.34	7247.92
T 	 23.7954 	zonal 	ERA40	38.89	0.61
U 	  4.8400 	zonal 	ERA40	12.07	0.40
V 	  2.7517 	zonal 	ERA40	8.25	0.33
Q 	 32.1494 	zonal 	ERA40	29.41	1.09

Total Performance Index is : 558.4853
Partial PI (atm only) is   : 0.6657

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1930 1930

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.0531 	land 	CRU	25.13	0.91
msl 	  2.9698 	global 	COADS	11.69	0.25
qnet 	 18.8155 	ocean 	OAFLUX	14.24	1.32
tp 	 37.7457 	global 	CMAP	38.87	0.97
ewss 	  9.0370 	ocean 	DASILVA	4.03	2.24
nsss 	  5.2524 	ocean 	DASILVA	3.10	1.69
SST 	 28.7827 	ocean 	GISS	17.21	1.67
SSS 	  0.1453 	ocean 	levitus	0.22	0.66
SICE 	2464.2928 	ocean 	GISS	0.34	7247.92
T 	 22.0546 	zonal 	ERA40	38.89	0.56
U 	  4.5057 	zonal 	ERA40	12.07	0.37
V 	  2.6149 	zonal 	ERA40	8.25	0.31
Q 	 25.1661 	zonal 	ERA40	29.41	0.85

Total Performance Index is : 558.4400
Partial PI (atm only) is   : 0.6028