Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vaaa 2011 2011

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 18.0055 	land 	CRU	25.13	0.71
msl 	  3.7679 	global 	COADS	11.69	0.32
qnet 	 20.3512 	ocean 	OAFLUX	14.24	1.42
tp 	 25.7879 	global 	CMAP	38.87	0.66
ewss 	 10.0023 	ocean 	DASILVA	4.03	2.48
nsss 	  4.9722 	ocean 	DASILVA	3.10	1.60
T 	  6.2343 	zonal 	ERA40	38.89	0.16
U 	  5.0610 	zonal 	ERA40	12.07	0.41
V 	  2.6968 	zonal 	ERA40	8.25	0.32
Q 	 15.1985 	zonal 	ERA40	29.41	0.51

Total Performance Index is : 3.4300
Partial PI (atm only) is   : 5.4571

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vaaa 2011 2011

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.6909 	land 	CRU	25.13	0.62
msl 	  3.7679 	global 	COADS	11.69	0.32
qnet 	 19.1430 	ocean 	OAFLUX	14.24	1.34
tp 	 25.7879 	global 	CMAP	38.87	0.66
ewss 	 12.1325 	ocean 	DASILVA	4.03	3.01
nsss 	  4.7542 	ocean 	DASILVA	3.10	1.53
SST 	  4.7542 	ocean 	GISS	17.21	0
SSS 	  4.7542 	ocean 	levitus	0.22	0
SICE 	  4.7542 	ocean 	GISS	0.34	0
T 	  5.6813 	zonal 	ERA40	38.89	0.14
U 	  4.8133 	zonal 	ERA40	12.07	0.39
V 	  2.5628 	zonal 	ERA40	8.25	0.31
Q 	  8.9021 	zonal 	ERA40	29.41	0.30

Total Performance Index is : 0.6630
Partial PI (atm only) is   : 0.3914