Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
caaa 2009 2009

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.3827 	land 	CRU	25.13	0.61
msl 	  1.6530 	global 	COADS	11.69	0.14
qnet 	 20.0453 	ocean 	OAFLUX	14.24	1.40
tp 	 27.0083 	global 	CMAP	38.87	0.69
ewss 	  9.6174 	ocean 	DASILVA	4.03	2.38
nsss 	  4.9840 	ocean 	DASILVA	3.10	1.60
T 	  5.6101 	zonal 	ERA40	38.89	0.14
U 	  2.7264 	zonal 	ERA40	12.07	0.22
V 	  2.7167 	zonal 	ERA40	8.25	0.32
Q 	 15.9163 	zonal 	ERA40	29.41	0.54

Total Performance Index is : 3.3876
Partial PI (atm only) is   : 5.4257

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
caaa 2009 2009

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 13.4141 	land 	CRU	25.13	0.53
msl 	  1.6530 	global 	COADS	11.69	0.14
qnet 	 18.8190 	ocean 	OAFLUX	14.24	1.32
tp 	 27.0083 	global 	CMAP	38.87	0.69
ewss 	 11.4482 	ocean 	DASILVA	4.03	2.84
nsss 	  4.5912 	ocean 	DASILVA	3.10	1.48
SST 	  4.5912 	ocean 	GISS	17.21	0
SSS 	  4.5912 	ocean 	levitus	0.22	0
SICE 	  4.5912 	ocean 	GISS	0.34	0
T 	  5.0826 	zonal 	ERA40	38.89	0.13
U 	  2.5734 	zonal 	ERA40	12.07	0.21
V 	  2.5881 	zonal 	ERA40	8.25	0.31
Q 	  9.6387 	zonal 	ERA40	29.41	0.32

Total Performance Index is : 0.6130
Partial PI (atm only) is   : 0.3328