Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1948 1948

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.1941 	land 	CRU	25.13	0.80
msl 	  2.1668 	global 	COADS	11.69	0.18
qnet 	 21.2181 	ocean 	OAFLUX	14.24	1.49
tp 	 37.0527 	global 	CMAP	38.87	0.95
ewss 	  8.7361 	ocean 	DASILVA	4.03	2.16
nsss 	  5.8581 	ocean 	DASILVA	3.10	1.88
SST 	 29.0797 	ocean 	GISS	17.21	1.68
SSS 	  0.1390 	ocean 	levitus	0.22	0.63
SICE 	2230.0315 	ocean 	GISS	0.34	6558.91
T 	 19.5171 	zonal 	ERA40	38.89	0.50
U 	  3.2336 	zonal 	ERA40	12.07	0.26
V 	  2.2750 	zonal 	ERA40	8.25	0.27
Q 	 24.8121 	zonal 	ERA40	29.41	0.84

Total Performance Index is : 505.4269
Partial PI (atm only) is   : 0.5428

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1948 1948

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 18.1008 	land 	CRU	25.13	0.72
msl 	  2.1668 	global 	COADS	11.69	0.18
qnet 	 20.0685 	ocean 	OAFLUX	14.24	1.40
tp 	 37.0527 	global 	CMAP	38.87	0.95
ewss 	  9.4356 	ocean 	DASILVA	4.03	2.34
nsss 	  5.3776 	ocean 	DASILVA	3.10	1.73
SST 	 29.0797 	ocean 	GISS	17.21	1.68
SSS 	  0.1390 	ocean 	levitus	0.22	0.63
SICE 	2230.0315 	ocean 	GISS	0.34	6558.91
T 	 17.7971 	zonal 	ERA40	38.89	0.45
U 	  3.0157 	zonal 	ERA40	12.07	0.24
V 	  2.1608 	zonal 	ERA40	8.25	0.26
Q 	 18.1846 	zonal 	ERA40	29.41	0.61

Total Performance Index is : 505.3923
Partial PI (atm only) is   : 0.4871