Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1868 1868

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.5887 	land 	CRU	25.13	0.97
msl 	  1.8329 	global 	COADS	11.69	0.15
qnet 	 20.5263 	ocean 	OAFLUX	14.24	1.44
tp 	 28.7122 	global 	CMAP	38.87	0.73
ewss 	  7.5558 	ocean 	DASILVA	4.03	1.87
nsss 	  5.0595 	ocean 	DASILVA	3.10	1.63
SST 	 24.8763 	ocean 	GISS	17.21	1.44
SSS 	  0.1563 	ocean 	levitus	0.22	0.71
SICE 	2534.0599 	ocean 	GISS	0.34	7453.11
T 	 23.2093 	zonal 	ERA40	38.89	0.59
U 	  2.6294 	zonal 	ERA40	12.07	0.21
V 	  2.2841 	zonal 	ERA40	8.25	0.27
Q 	 30.9978 	zonal 	ERA40	29.41	1.05

Total Performance Index is : 574.1669
Partial PI (atm only) is   : 0.5671

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1868 1868

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.8236 	land 	CRU	25.13	0.94
msl 	  1.8329 	global 	COADS	11.69	0.15
qnet 	 19.3517 	ocean 	OAFLUX	14.24	1.35
tp 	 28.7122 	global 	CMAP	38.87	0.73
ewss 	  7.5072 	ocean 	DASILVA	4.03	1.86
nsss 	  4.2569 	ocean 	DASILVA	3.10	1.37
SST 	 24.8763 	ocean 	GISS	17.21	1.44
SSS 	  0.1563 	ocean 	levitus	0.22	0.71
SICE 	2534.0599 	ocean 	GISS	0.34	7453.11
T 	 20.9802 	zonal 	ERA40	38.89	0.53
U 	  2.3208 	zonal 	ERA40	12.07	0.19
V 	  2.1485 	zonal 	ERA40	8.25	0.26
Q 	 23.4391 	zonal 	ERA40	29.41	0.79

Total Performance Index is : 574.1100
Partial PI (atm only) is   : 0.5128