Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1878 1878

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.7818 	land 	CRU	25.13	0.98
msl 	  2.7728 	global 	COADS	11.69	0.23
qnet 	 20.4798 	ocean 	OAFLUX	14.24	1.43
tp 	 33.7812 	global 	CMAP	38.87	0.86
ewss 	  8.2867 	ocean 	DASILVA	4.03	2.05
nsss 	  6.3614 	ocean 	DASILVA	3.10	2.05
SST 	 28.2180 	ocean 	GISS	17.21	1.63
SSS 	  0.1470 	ocean 	levitus	0.22	0.66
SICE 	2776.0410 	ocean 	GISS	0.34	8164.82
T 	 23.8390 	zonal 	ERA40	38.89	0.61
U 	  3.2891 	zonal 	ERA40	12.07	0.27
V 	  2.5555 	zonal 	ERA40	8.25	0.30
Q 	 31.9618 	zonal 	ERA40	29.41	1.08

Total Performance Index is : 628.9976
Partial PI (atm only) is   : 0.6185

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1878 1878

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.1097 	land 	CRU	25.13	0.91
msl 	  2.7728 	global 	COADS	11.69	0.23
qnet 	 19.2828 	ocean 	OAFLUX	14.24	1.35
tp 	 33.7812 	global 	CMAP	38.87	0.86
ewss 	  8.4341 	ocean 	DASILVA	4.03	2.09
nsss 	  5.3162 	ocean 	DASILVA	3.10	1.71
SST 	 28.2180 	ocean 	GISS	17.21	1.63
SSS 	  0.1470 	ocean 	levitus	0.22	0.66
SICE 	2776.0410 	ocean 	GISS	0.34	8164.82
T 	 21.6229 	zonal 	ERA40	38.89	0.55
U 	  3.0021 	zonal 	ERA40	12.07	0.24
V 	  2.4452 	zonal 	ERA40	8.25	0.29
Q 	 24.4645 	zonal 	ERA40	29.41	0.83

Total Performance Index is : 628.9361
Partial PI (atm only) is   : 0.5585