Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1976 1976

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	292.7754 	land 	CRU	25.13	11.65
msl 	  5.0614 	global 	COADS	11.69	0.43
qnet 	 21.5791 	ocean 	OAFLUX	14.24	1.51
tp 	 66.1050 	global 	CMAP	38.87	1.70
ewss 	  9.9981 	ocean 	DASILVA	4.03	2.48
nsss 	  7.0196 	ocean 	DASILVA	3.10	2.26
SST 	412.7631 	ocean 	GISS	17.21	23.98
SSS 	  0.3752 	ocean 	levitus	0.22	1.70
SICE 	 32.7244 	ocean 	GISS	0.34	96.24
T 	544.7155 	zonal 	ERA40	38.89	14.00
U 	  8.3227 	zonal 	ERA40	12.07	0.68
V 	  4.3512 	zonal 	ERA40	8.25	0.52
Q 	574.7202 	zonal 	ERA40	29.41	19.54

Total Performance Index is : 13.5915
Partial PI (atm only) is   : 6.9314

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1976 1976

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	221.4472 	land 	CRU	25.13	8.81
msl 	  5.0614 	global 	COADS	11.69	0.43
qnet 	 20.5042 	ocean 	OAFLUX	14.24	1.43
tp 	 66.1050 	global 	CMAP	38.87	1.70
ewss 	 10.8054 	ocean 	DASILVA	4.03	2.68
nsss 	  6.3028 	ocean 	DASILVA	3.10	2.03
SST 	412.7631 	ocean 	GISS	17.21	23.98
SSS 	  0.3752 	ocean 	levitus	0.22	1.70
SICE 	 32.7244 	ocean 	GISS	0.34	96.24
T 	543.5095 	zonal 	ERA40	38.89	13.97
U 	  6.7883 	zonal 	ERA40	12.07	0.56
V 	  4.2678 	zonal 	ERA40	8.25	0.51
Q 	572.7912 	zonal 	ERA40	29.41	19.47

Total Performance Index is : 13.3469
Partial PI (atm only) is   : 6.4928