Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1990 1990

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.2134 	land 	CRU	25.13	0.80
msl 	  3.4910 	global 	COADS	11.69	0.29
qnet 	 20.6873 	ocean 	OAFLUX	14.24	1.45
tp 	 43.0642 	global 	CMAP	38.87	1.10
ewss 	  9.1753 	ocean 	DASILVA	4.03	2.27
nsss 	  6.2960 	ocean 	DASILVA	3.10	2.03
SST 	 35.9338 	ocean 	GISS	17.21	2.08
SSS 	  0.1580 	ocean 	levitus	0.22	0.71
SICE 	2457.6910 	ocean 	GISS	0.34	7228.50
T 	 22.2216 	zonal 	ERA40	38.89	0.57
U 	  4.4949 	zonal 	ERA40	12.07	0.37
V 	  3.1810 	zonal 	ERA40	8.25	0.38
Q 	 31.8646 	zonal 	ERA40	29.41	1.08

Total Performance Index is : 557.0484
Partial PI (atm only) is   : 0.6557

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1990 1990

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 19.6113 	land 	CRU	25.13	0.78
msl 	  3.4910 	global 	COADS	11.69	0.29
qnet 	 19.5237 	ocean 	OAFLUX	14.24	1.37
tp 	 43.0642 	global 	CMAP	38.87	1.10
ewss 	  9.7337 	ocean 	DASILVA	4.03	2.41
nsss 	  5.8414 	ocean 	DASILVA	3.10	1.88
SST 	 35.9338 	ocean 	GISS	17.21	2.08
SSS 	  0.1580 	ocean 	levitus	0.22	0.71
SICE 	2457.6910 	ocean 	GISS	0.34	7228.50
T 	 21.3291 	zonal 	ERA40	38.89	0.54
U 	  4.3337 	zonal 	ERA40	12.07	0.35
V 	  3.0791 	zonal 	ERA40	8.25	0.37
Q 	 25.9091 	zonal 	ERA40	29.41	0.88

Total Performance Index is : 557.0200
Partial PI (atm only) is   : 0.6157