Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 2006 2006

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 19.1316 	land 	CRU	25.13	0.76
msl 	  4.6270 	global 	COADS	11.69	0.39
qnet 	 21.0309 	ocean 	OAFLUX	14.24	1.47
tp 	 39.7740 	global 	CMAP	38.87	1.02
ewss 	  9.7992 	ocean 	DASILVA	4.03	2.43
nsss 	  6.7988 	ocean 	DASILVA	3.10	2.19
SST 	 37.5777 	ocean 	GISS	17.21	2.18
SSS 	  0.1521 	ocean 	levitus	0.22	0.69
SICE 	2058.9988 	ocean 	GISS	0.34	6055.87
T 	 20.4403 	zonal 	ERA40	38.89	0.52
U 	  6.8210 	zonal 	ERA40	12.07	0.56
V 	  3.1392 	zonal 	ERA40	8.25	0.38
Q 	 25.0505 	zonal 	ERA40	29.41	0.85

Total Performance Index is : 466.8700
Partial PI (atm only) is   : 0.6400

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 2006 2006

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.6762 	land 	CRU	25.13	0.62
msl 	  4.6270 	global 	COADS	11.69	0.39
qnet 	 19.8340 	ocean 	OAFLUX	14.24	1.39
tp 	 39.7740 	global 	CMAP	38.87	1.02
ewss 	 10.6200 	ocean 	DASILVA	4.03	2.63
nsss 	  6.6730 	ocean 	DASILVA	3.10	2.15
SST 	 37.5777 	ocean 	GISS	17.21	2.18
SSS 	  0.1521 	ocean 	levitus	0.22	0.69
SICE 	2058.9988 	ocean 	GISS	0.34	6055.87
T 	 19.8936 	zonal 	ERA40	38.89	0.51
U 	  6.6003 	zonal 	ERA40	12.07	0.54
V 	  3.0186 	zonal 	ERA40	8.25	0.36
Q 	 19.4389 	zonal 	ERA40	29.41	0.66

Total Performance Index is : 466.8469
Partial PI (atm only) is   : 0.5857