Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c126 2040 2040

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 18.7269 	land 	CRU	25.13	0.74
msl 	  1.7721 	global 	COADS	11.69	0.15
qnet 	 20.2534 	ocean 	OAFLUX	14.24	1.42
tp 	 34.8225 	global 	CMAP	38.87	0.89
ewss 	  8.7820 	ocean 	DASILVA	4.03	2.17
nsss 	  5.7150 	ocean 	DASILVA	3.10	1.84
SST 	 58.7105 	ocean 	GISS	17.21	3.41
SSS 	  0.1968 	ocean 	levitus	0.22	0.89
SICE 	1483.9190 	ocean 	GISS	0.34	4364.46
T 	 43.3418 	zonal 	ERA40	38.89	1.11
U 	  2.2739 	zonal 	ERA40	12.07	0.18
V 	  2.2408 	zonal 	ERA40	8.25	0.27
Q 	 32.3966 	zonal 	ERA40	29.41	1.10

Total Performance Index is : 336.8176
Partial PI (atm only) is   : 0.6342

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c126 2040 2040

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 13.2649 	land 	CRU	25.13	0.52
msl 	  1.7721 	global 	COADS	11.69	0.15
qnet 	 19.0837 	ocean 	OAFLUX	14.24	1.34
tp 	 34.8225 	global 	CMAP	38.87	0.89
ewss 	  9.3016 	ocean 	DASILVA	4.03	2.30
nsss 	  4.9661 	ocean 	DASILVA	3.10	1.60
SST 	 58.7105 	ocean 	GISS	17.21	3.41
SSS 	  0.1968 	ocean 	levitus	0.22	0.89
SICE 	1483.9190 	ocean 	GISS	0.34	4364.46
T 	 43.0775 	zonal 	ERA40	38.89	1.10
U 	  2.1929 	zonal 	ERA40	12.07	0.18
V 	  2.1325 	zonal 	ERA40	8.25	0.25
Q 	 27.3517 	zonal 	ERA40	29.41	0.93

Total Performance Index is : 336.7707
Partial PI (atm only) is   : 0.5742