Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 2003 2003

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.5083 	land 	CRU	25.13	0.61
msl 	  2.0433 	global 	COADS	11.69	0.17
qnet 	 19.3353 	ocean 	OAFLUX	14.24	1.35
tp 	 42.4587 	global 	CMAP	38.87	1.09
ewss 	  8.0548 	ocean 	DASILVA	4.03	1.99
nsss 	  5.8438 	ocean 	DASILVA	3.10	1.88
SST 	 41.1399 	ocean 	GISS	17.21	2.39
SSS 	  0.1429 	ocean 	levitus	0.22	0.64
SICE 	2000.1493 	ocean 	GISS	0.34	5882.79
T 	 22.9116 	zonal 	ERA40	38.89	0.58
U 	  3.0728 	zonal 	ERA40	12.07	0.25
V 	  2.7311 	zonal 	ERA40	8.25	0.33
Q 	 25.1637 	zonal 	ERA40	29.41	0.85

Total Performance Index is : 453.4553
Partial PI (atm only) is   : 0.5542

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 2003 2003

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 12.3142 	land 	CRU	25.13	0.49
msl 	  2.0433 	global 	COADS	11.69	0.17
qnet 	 18.0957 	ocean 	OAFLUX	14.24	1.27
tp 	 42.4587 	global 	CMAP	38.87	1.09
ewss 	  8.8569 	ocean 	DASILVA	4.03	2.19
nsss 	  5.6402 	ocean 	DASILVA	3.10	1.81
SST 	 41.1399 	ocean 	GISS	17.21	2.39
SSS 	  0.1429 	ocean 	levitus	0.22	0.64
SICE 	2000.1493 	ocean 	GISS	0.34	5882.79
T 	 22.3178 	zonal 	ERA40	38.89	0.57
U 	  2.9580 	zonal 	ERA40	12.07	0.24
V 	  2.5936 	zonal 	ERA40	8.25	0.31
Q 	 19.7404 	zonal 	ERA40	29.41	0.67

Total Performance Index is : 453.4330
Partial PI (atm only) is   : 0.5057