Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1999 1999

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 16.8765 	land 	CRU	25.13	0.67
msl 	  3.1871 	global 	COADS	11.69	0.27
qnet 	 19.4116 	ocean 	OAFLUX	14.24	1.36
tp 	 30.5348 	global 	CMAP	38.87	0.78
ewss 	  9.0468 	ocean 	DASILVA	4.03	2.24
nsss 	  6.4345 	ocean 	DASILVA	3.10	2.07
SST 	 38.1079 	ocean 	GISS	17.21	2.21
SSS 	  0.1461 	ocean 	levitus	0.22	0.66
SICE 	2394.0523 	ocean 	GISS	0.34	7041.33
T 	 24.7752 	zonal 	ERA40	38.89	0.63
U 	  4.5389 	zonal 	ERA40	12.07	0.37
V 	  2.6819 	zonal 	ERA40	8.25	0.32
Q 	 28.2728 	zonal 	ERA40	29.41	0.96

Total Performance Index is : 542.6053
Partial PI (atm only) is   : 0.5714

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1999 1999

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.5978 	land 	CRU	25.13	0.62
msl 	  3.1871 	global 	COADS	11.69	0.27
qnet 	 18.1999 	ocean 	OAFLUX	14.24	1.27
tp 	 30.5348 	global 	CMAP	38.87	0.78
ewss 	 10.1726 	ocean 	DASILVA	4.03	2.52
nsss 	  6.0632 	ocean 	DASILVA	3.10	1.95
SST 	 38.1079 	ocean 	GISS	17.21	2.21
SSS 	  0.1461 	ocean 	levitus	0.22	0.66
SICE 	2394.0523 	ocean 	GISS	0.34	7041.33
T 	 24.0917 	zonal 	ERA40	38.89	0.61
U 	  4.3361 	zonal 	ERA40	12.07	0.35
V 	  2.5871 	zonal 	ERA40	8.25	0.31
Q 	 22.4425 	zonal 	ERA40	29.41	0.76

Total Performance Index is : 542.5876
Partial PI (atm only) is   : 0.5285