Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1995 1995

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 21.8622 	land 	CRU	25.13	0.86
msl 	  1.9515 	global 	COADS	11.69	0.16
qnet 	 20.2897 	ocean 	OAFLUX	14.24	1.42
tp 	 40.9580 	global 	CMAP	38.87	1.05
ewss 	  8.5133 	ocean 	DASILVA	4.03	2.11
nsss 	  6.3628 	ocean 	DASILVA	3.10	2.05
SST 	 31.3201 	ocean 	GISS	17.21	1.81
SSS 	  0.1606 	ocean 	levitus	0.22	0.73
SICE 	2606.0210 	ocean 	GISS	0.34	7664.76
T 	 21.5393 	zonal 	ERA40	38.89	0.55
U 	  2.9607 	zonal 	ERA40	12.07	0.24
V 	  2.2080 	zonal 	ERA40	8.25	0.26
Q 	 29.4939 	zonal 	ERA40	29.41	1.00

Total Performance Index is : 590.5384
Partial PI (atm only) is   : 0.5885

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1995 1995

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.6666 	land 	CRU	25.13	0.82
msl 	  1.9515 	global 	COADS	11.69	0.16
qnet 	 19.0970 	ocean 	OAFLUX	14.24	1.34
tp 	 40.9580 	global 	CMAP	38.87	1.05
ewss 	  8.9035 	ocean 	DASILVA	4.03	2.20
nsss 	  5.5673 	ocean 	DASILVA	3.10	1.79
SST 	 31.3201 	ocean 	GISS	17.21	1.81
SSS 	  0.1606 	ocean 	levitus	0.22	0.73
SICE 	2606.0210 	ocean 	GISS	0.34	7664.76
T 	 20.8617 	zonal 	ERA40	38.89	0.53
U 	  2.7724 	zonal 	ERA40	12.07	0.22
V 	  2.1006 	zonal 	ERA40	8.25	0.25
Q 	 23.5592 	zonal 	ERA40	29.41	0.80

Total Performance Index is : 590.4969
Partial PI (atm only) is   : 0.5471