Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1926 1926

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	219.8567 	land 	CRU	25.13	8.74
msl 	  3.4739 	global 	COADS	11.69	0.29
qnet 	 21.5828 	ocean 	OAFLUX	14.24	1.51
tp 	 89.6584 	global 	CMAP	38.87	2.30
ewss 	  9.4293 	ocean 	DASILVA	4.03	2.33
nsss 	  6.4838 	ocean 	DASILVA	3.10	2.09
SST 	331.3812 	ocean 	GISS	17.21	19.25
SSS 	  0.3460 	ocean 	levitus	0.22	1.57
SICE 	 49.3305 	ocean 	GISS	0.34	145.08
T 	419.4356 	zonal 	ERA40	38.89	10.78
U 	  8.1184 	zonal 	ERA40	12.07	0.67
V 	  3.8227 	zonal 	ERA40	8.25	0.46
Q 	405.4654 	zonal 	ERA40	29.41	13.78

Total Performance Index is : 16.0653
Partial PI (atm only) is   : 5.2885

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1926 1926

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	165.0490 	land 	CRU	25.13	6.56
msl 	  3.4739 	global 	COADS	11.69	0.29
qnet 	 20.4936 	ocean 	OAFLUX	14.24	1.43
tp 	 89.6584 	global 	CMAP	38.87	2.30
ewss 	  9.9003 	ocean 	DASILVA	4.03	2.45
nsss 	  5.5476 	ocean 	DASILVA	3.10	1.78
SST 	331.3812 	ocean 	GISS	17.21	19.25
SSS 	  0.3460 	ocean 	levitus	0.22	1.57
SICE 	 49.3305 	ocean 	GISS	0.34	145.08
T 	418.3452 	zonal 	ERA40	38.89	10.75
U 	  7.2312 	zonal 	ERA40	12.07	0.59
V 	  3.7231 	zonal 	ERA40	8.25	0.45
Q 	403.4155 	zonal 	ERA40	29.41	13.71

Total Performance Index is : 15.8623
Partial PI (atm only) is   : 4.9500