Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1904 1904

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.0774 	land 	CRU	25.13	0.95
msl 	  2.1632 	global 	COADS	11.69	0.18
qnet 	 20.5807 	ocean 	OAFLUX	14.24	1.44
tp 	 38.7077 	global 	CMAP	38.87	0.99
ewss 	  8.0546 	ocean 	DASILVA	4.03	1.99
nsss 	  6.1836 	ocean 	DASILVA	3.10	1.99
SST 	 24.9508 	ocean 	GISS	17.21	1.44
SSS 	  0.1331 	ocean 	levitus	0.22	0.60
SICE 	2652.0982 	ocean 	GISS	0.34	7800.28
T 	 23.7760 	zonal 	ERA40	38.89	0.61
U 	  2.9383 	zonal 	ERA40	12.07	0.24
V 	  2.7437 	zonal 	ERA40	8.25	0.33
Q 	 32.9675 	zonal 	ERA40	29.41	1.12

Total Performance Index is : 600.9353
Partial PI (atm only) is   : 0.6314

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1904 1904

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.0349 	land 	CRU	25.13	0.91
msl 	  2.1632 	global 	COADS	11.69	0.18
qnet 	 19.4121 	ocean 	OAFLUX	14.24	1.36
tp 	 38.7077 	global 	CMAP	38.87	0.99
ewss 	  7.8021 	ocean 	DASILVA	4.03	1.93
nsss 	  5.2918 	ocean 	DASILVA	3.10	1.70
SST 	 24.9508 	ocean 	GISS	17.21	1.44
SSS 	  0.1331 	ocean 	levitus	0.22	0.60
SICE 	2652.0982 	ocean 	GISS	0.34	7800.28
T 	 21.4934 	zonal 	ERA40	38.89	0.55
U 	  2.6943 	zonal 	ERA40	12.07	0.22
V 	  2.6017 	zonal 	ERA40	8.25	0.31
Q 	 25.8696 	zonal 	ERA40	29.41	0.87

Total Performance Index is : 600.8723
Partial PI (atm only) is   : 0.5757