Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1881 1881

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	173.7892 	land 	CRU	25.13	6.91
msl 	  3.2434 	global 	COADS	11.69	0.27
qnet 	 19.3166 	ocean 	OAFLUX	14.24	1.35
tp 	 58.0007 	global 	CMAP	38.87	1.49
ewss 	  9.2936 	ocean 	DASILVA	4.03	2.30
nsss 	  7.0403 	ocean 	DASILVA	3.10	2.27
SST 	241.9939 	ocean 	GISS	17.21	14.06
SSS 	  0.2496 	ocean 	levitus	0.22	1.13
SICE 	285.2158 	ocean 	GISS	0.34	838.87
T 	320.3525 	zonal 	ERA40	38.89	8.23
U 	  5.4985 	zonal 	ERA40	12.07	0.45
V 	  3.0352 	zonal 	ERA40	8.25	0.36
Q 	251.1361 	zonal 	ERA40	29.41	8.53

Total Performance Index is : 68.1707
Partial PI (atm only) is   : 3.7485

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1881 1881

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	132.9753 	land 	CRU	25.13	5.29
msl 	  3.2434 	global 	COADS	11.69	0.27
qnet 	 18.1808 	ocean 	OAFLUX	14.24	1.27
tp 	 58.0007 	global 	CMAP	38.87	1.49
ewss 	 10.3509 	ocean 	DASILVA	4.03	2.56
nsss 	  6.2095 	ocean 	DASILVA	3.10	2.00
SST 	241.9939 	ocean 	GISS	17.21	14.06
SSS 	  0.2496 	ocean 	levitus	0.22	1.13
SICE 	285.2158 	ocean 	GISS	0.34	838.87
T 	319.3074 	zonal 	ERA40	38.89	8.21
U 	  4.6623 	zonal 	ERA40	12.07	0.38
V 	  2.9366 	zonal 	ERA40	8.25	0.35
Q 	248.3531 	zonal 	ERA40	29.41	8.44

Total Performance Index is : 68.0246
Partial PI (atm only) is   : 3.4900