Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1894 1894

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 31.6423 	land 	CRU	25.13	1.25
msl 	  3.5204 	global 	COADS	11.69	0.30
qnet 	 21.2501 	ocean 	OAFLUX	14.24	1.49
tp 	 33.4572 	global 	CMAP	38.87	0.86
ewss 	  9.1070 	ocean 	DASILVA	4.03	2.25
nsss 	  5.8110 	ocean 	DASILVA	3.10	1.87
SST 	 30.9223 	ocean 	GISS	17.21	1.79
SSS 	  0.1864 	ocean 	levitus	0.22	0.84
SICE 	2889.2314 	ocean 	GISS	0.34	8497.73
T 	 27.7765 	zonal 	ERA40	38.89	0.71
U 	  4.7277 	zonal 	ERA40	12.07	0.39
V 	  3.6306 	zonal 	ERA40	8.25	0.44
Q 	 37.3299 	zonal 	ERA40	29.41	1.26

Total Performance Index is : 654.7061
Partial PI (atm only) is   : 0.7442

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1894 1894

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 31.8539 	land 	CRU	25.13	1.26
msl 	  3.5204 	global 	COADS	11.69	0.30
qnet 	 20.0717 	ocean 	OAFLUX	14.24	1.40
tp 	 33.4572 	global 	CMAP	38.87	0.86
ewss 	  9.6750 	ocean 	DASILVA	4.03	2.40
nsss 	  5.7328 	ocean 	DASILVA	3.10	1.84
SST 	 30.9223 	ocean 	GISS	17.21	1.79
SSS 	  0.1864 	ocean 	levitus	0.22	0.84
SICE 	2889.2314 	ocean 	GISS	0.34	8497.73
T 	 25.5805 	zonal 	ERA40	38.89	0.65
U 	  4.4633 	zonal 	ERA40	12.07	0.36
V 	  3.5078 	zonal 	ERA40	8.25	0.42
Q 	 29.8045 	zonal 	ERA40	29.41	1.01

Total Performance Index is : 654.6815
Partial PI (atm only) is   : 0.6942