Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1909 1909

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.8342 	land 	CRU	25.13	0.94
msl 	  2.1288 	global 	COADS	11.69	0.18
qnet 	 20.2365 	ocean 	OAFLUX	14.24	1.42
tp 	 36.9470 	global 	CMAP	38.87	0.95
ewss 	  8.4802 	ocean 	DASILVA	4.03	2.10
nsss 	  5.7799 	ocean 	DASILVA	3.10	1.86
SST 	 26.8276 	ocean 	GISS	17.21	1.55
SSS 	  0.1373 	ocean 	levitus	0.22	0.62
SICE 	2400.7825 	ocean 	GISS	0.34	7061.12
T 	 22.2245 	zonal 	ERA40	38.89	0.57
U 	  2.9302 	zonal 	ERA40	12.07	0.24
V 	  2.3796 	zonal 	ERA40	8.25	0.28
Q 	 26.6968 	zonal 	ERA40	29.41	0.90

Total Performance Index is : 544.0561
Partial PI (atm only) is   : 0.5800

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1909 1909

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 22.8237 	land 	CRU	25.13	0.90
msl 	  2.1288 	global 	COADS	11.69	0.18
qnet 	 19.0543 	ocean 	OAFLUX	14.24	1.33
tp 	 36.9470 	global 	CMAP	38.87	0.95
ewss 	  8.8099 	ocean 	DASILVA	4.03	2.18
nsss 	  5.0759 	ocean 	DASILVA	3.10	1.63
SST 	 26.8276 	ocean 	GISS	17.21	1.55
SSS 	  0.1373 	ocean 	levitus	0.22	0.62
SICE 	2400.7825 	ocean 	GISS	0.34	7061.12
T 	 20.1893 	zonal 	ERA40	38.89	0.51
U 	  2.7087 	zonal 	ERA40	12.07	0.22
V 	  2.2462 	zonal 	ERA40	8.25	0.27
Q 	 19.6278 	zonal 	ERA40	29.41	0.66

Total Performance Index is : 544.0092
Partial PI (atm only) is   : 0.5271