Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1977 1977

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 29.8191 	land 	CRU	25.13	1.18
msl 	  3.1678 	global 	COADS	11.69	0.27
qnet 	 20.5543 	ocean 	OAFLUX	14.24	1.44
tp 	 36.5782 	global 	CMAP	38.87	0.94
ewss 	  8.4210 	ocean 	DASILVA	4.03	2.08
nsss 	  6.4796 	ocean 	DASILVA	3.10	2.09
SST 	 32.7171 	ocean 	GISS	17.21	1.90
SSS 	  0.1642 	ocean 	levitus	0.22	0.74
SICE 	2688.1011 	ocean 	GISS	0.34	7906.17
T 	 26.2934 	zonal 	ERA40	38.89	0.67
U 	  4.9891 	zonal 	ERA40	12.07	0.41
V 	  3.1858 	zonal 	ERA40	8.25	0.38
Q 	 36.6601 	zonal 	ERA40	29.41	1.24

Total Performance Index is : 609.1930
Partial PI (atm only) is   : 0.7271

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1977 1977

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 27.3464 	land 	CRU	25.13	1.08
msl 	  3.1678 	global 	COADS	11.69	0.27
qnet 	 19.3575 	ocean 	OAFLUX	14.24	1.35
tp 	 36.5782 	global 	CMAP	38.87	0.94
ewss 	  8.5439 	ocean 	DASILVA	4.03	2.12
nsss 	  5.6746 	ocean 	DASILVA	3.10	1.83
SST 	 32.7171 	ocean 	GISS	17.21	1.90
SSS 	  0.1642 	ocean 	levitus	0.22	0.74
SICE 	2688.1011 	ocean 	GISS	0.34	7906.17
T 	 25.1255 	zonal 	ERA40	38.89	0.64
U 	  4.5511 	zonal 	ERA40	12.07	0.37
V 	  3.0529 	zonal 	ERA40	8.25	0.37
Q 	 30.1023 	zonal 	ERA40	29.41	1.02

Total Performance Index is : 609.1384
Partial PI (atm only) is   : 0.6700