Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1960 1960

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	263.7194 	land 	CRU	25.13	10.49
msl 	  3.8137 	global 	COADS	11.69	0.32
qnet 	 21.1137 	ocean 	OAFLUX	14.24	1.48
tp 	 71.4987 	global 	CMAP	38.87	1.83
ewss 	  9.4094 	ocean 	DASILVA	4.03	2.33
nsss 	  7.8299 	ocean 	DASILVA	3.10	2.52
SST 	369.8685 	ocean 	GISS	17.21	21.49
SSS 	  0.3438 	ocean 	levitus	0.22	1.56
SICE 	 41.5005 	ocean 	GISS	0.34	122.06
T 	487.7717 	zonal 	ERA40	38.89	12.54
U 	  6.9582 	zonal 	ERA40	12.07	0.57
V 	  3.4090 	zonal 	ERA40	8.25	0.41
Q 	485.5388 	zonal 	ERA40	29.41	16.50

Total Performance Index is : 14.9307
Partial PI (atm only) is   : 6.0942

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1960 1960

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	201.3151 	land 	CRU	25.13	8.01
msl 	  3.8137 	global 	COADS	11.69	0.32
qnet 	 20.0246 	ocean 	OAFLUX	14.24	1.40
tp 	 71.4987 	global 	CMAP	38.87	1.83
ewss 	 10.8096 	ocean 	DASILVA	4.03	2.68
nsss 	  7.0156 	ocean 	DASILVA	3.10	2.26
SST 	369.8685 	ocean 	GISS	17.21	21.49
SSS 	  0.3438 	ocean 	levitus	0.22	1.56
SICE 	 41.5005 	ocean 	GISS	0.34	122.06
T 	486.7029 	zonal 	ERA40	38.89	12.51
U 	  5.7959 	zonal 	ERA40	12.07	0.48
V 	  3.3184 	zonal 	ERA40	8.25	0.40
Q 	483.4468 	zonal 	ERA40	29.41	16.43

Total Performance Index is : 14.7253
Partial PI (atm only) is   : 5.7114