Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1852 1852

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 29.9342 	land 	CRU	25.13	1.19
msl 	  1.6270 	global 	COADS	11.69	0.13
qnet 	 15.8626 	ocean 	OAFLUX	14.24	1.11
tp 	 40.2461 	global 	CMAP	38.87	1.03
ewss 	  8.3227 	ocean 	DASILVA	4.03	2.06
nsss 	  6.2332 	ocean 	DASILVA	3.10	2.01
SST 	 63.6521 	ocean 	GISS	17.21	3.69
SSS 	  0.1653 	ocean 	levitus	0.22	0.75
SICE 	1760.4192 	ocean 	GISS	0.34	5177.70
T 	 63.4073 	zonal 	ERA40	38.89	1.63
U 	  2.6194 	zonal 	ERA40	12.07	0.21
V 	  2.6356 	zonal 	ERA40	8.25	0.31
Q 	 40.9768 	zonal 	ERA40	29.41	1.39

Total Performance Index is : 399.4776
Partial PI (atm only) is   : 0.8414

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1852 1852

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.3554 	land 	CRU	25.13	0.92
msl 	  1.6270 	global 	COADS	11.69	0.13
qnet 	 14.5901 	ocean 	OAFLUX	14.24	1.02
tp 	 40.2461 	global 	CMAP	38.87	1.03
ewss 	  8.7840 	ocean 	DASILVA	4.03	2.17
nsss 	  5.5104 	ocean 	DASILVA	3.10	1.77
SST 	 63.6521 	ocean 	GISS	17.21	3.69
SSS 	  0.1653 	ocean 	levitus	0.22	0.75
SICE 	1760.4192 	ocean 	GISS	0.34	5177.70
T 	 62.6578 	zonal 	ERA40	38.89	1.61
U 	  2.4303 	zonal 	ERA40	12.07	0.20
V 	  2.5221 	zonal 	ERA40	8.25	0.30
Q 	 35.0368 	zonal 	ERA40	29.41	1.19

Total Performance Index is : 399.4215
Partial PI (atm only) is   : 0.7685