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

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 27.3786 	land 	CRU	25.13	1.08
msl 	  3.1309 	global 	COADS	11.69	0.26
qnet 	 20.6934 	ocean 	OAFLUX	14.24	1.45
tp 	 47.6812 	global 	CMAP	38.87	1.22
ewss 	  8.4986 	ocean 	DASILVA	4.03	2.10
nsss 	  6.1749 	ocean 	DASILVA	3.10	1.99
SST 	 29.3120 	ocean 	GISS	17.21	1.70
SSS 	  0.1475 	ocean 	levitus	0.22	0.67
SICE 	2611.4758 	ocean 	GISS	0.34	7680.81
T 	 24.7922 	zonal 	ERA40	38.89	0.63
U 	  4.6082 	zonal 	ERA40	12.07	0.38
V 	  2.5136 	zonal 	ERA40	8.25	0.30
Q 	 31.8558 	zonal 	ERA40	29.41	1.08

Total Performance Index is : 591.8207
Partial PI (atm only) is   : 0.7071

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

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.6919 	land 	CRU	25.13	0.98
msl 	  3.1309 	global 	COADS	11.69	0.26
qnet 	 19.4973 	ocean 	OAFLUX	14.24	1.36
tp 	 47.6812 	global 	CMAP	38.87	1.22
ewss 	  8.0843 	ocean 	DASILVA	4.03	2.00
nsss 	  5.6218 	ocean 	DASILVA	3.10	1.81
SST 	 29.3120 	ocean 	GISS	17.21	1.70
SSS 	  0.1475 	ocean 	levitus	0.22	0.67
SICE 	2611.4758 	ocean 	GISS	0.34	7680.81
T 	 22.6058 	zonal 	ERA40	38.89	0.58
U 	  4.2240 	zonal 	ERA40	12.07	0.34
V 	  2.3747 	zonal 	ERA40	8.25	0.28
Q 	 24.3710 	zonal 	ERA40	29.41	0.82

Total Performance Index is : 591.7561
Partial PI (atm only) is   : 0.6400