Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1920 1920

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 22.3417 	land 	CRU	25.13	0.88
msl 	  2.4392 	global 	COADS	11.69	0.20
qnet 	 20.3673 	ocean 	OAFLUX	14.24	1.43
tp 	 35.3764 	global 	CMAP	38.87	0.91
ewss 	  8.3539 	ocean 	DASILVA	4.03	2.07
nsss 	  5.9339 	ocean 	DASILVA	3.10	1.91
SST 	 28.0280 	ocean 	GISS	17.21	1.62
SSS 	  0.1466 	ocean 	levitus	0.22	0.66
SICE 	2240.7202 	ocean 	GISS	0.34	6590.35
T 	 21.9599 	zonal 	ERA40	38.89	0.56
U 	  3.3580 	zonal 	ERA40	12.07	0.27
V 	  2.6089 	zonal 	ERA40	8.25	0.31
Q 	 28.8463 	zonal 	ERA40	29.41	0.98

Total Performance Index is : 507.8576
Partial PI (atm only) is   : 0.5871

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1920 1920

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.8415 	land 	CRU	25.13	0.82
msl 	  2.4392 	global 	COADS	11.69	0.20
qnet 	 19.1708 	ocean 	OAFLUX	14.24	1.34
tp 	 35.3764 	global 	CMAP	38.87	0.91
ewss 	  9.0259 	ocean 	DASILVA	4.03	2.23
nsss 	  6.0383 	ocean 	DASILVA	3.10	1.94
SST 	 28.0280 	ocean 	GISS	17.21	1.62
SSS 	  0.1466 	ocean 	levitus	0.22	0.66
SICE 	2240.7202 	ocean 	GISS	0.34	6590.35
T 	 20.1017 	zonal 	ERA40	38.89	0.51
U 	  3.1461 	zonal 	ERA40	12.07	0.26
V 	  2.4881 	zonal 	ERA40	8.25	0.30
Q 	 21.9047 	zonal 	ERA40	29.41	0.74

Total Performance Index is : 507.8369
Partial PI (atm only) is   : 0.5342