Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1929 1929

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.1033 	land 	CRU	25.13	0.95
msl 	  2.3137 	global 	COADS	11.69	0.19
qnet 	 20.8873 	ocean 	OAFLUX	14.24	1.46
tp 	 33.9312 	global 	CMAP	38.87	0.87
ewss 	  7.8154 	ocean 	DASILVA	4.03	1.93
nsss 	  5.6424 	ocean 	DASILVA	3.10	1.82
SST 	 28.6305 	ocean 	GISS	17.21	1.66
SSS 	  0.1444 	ocean 	levitus	0.22	0.65
SICE 	2473.6073 	ocean 	GISS	0.34	7275.31
T 	 23.3728 	zonal 	ERA40	38.89	0.60
U 	  3.8600 	zonal 	ERA40	12.07	0.31
V 	  2.4527 	zonal 	ERA40	8.25	0.29
Q 	 31.9110 	zonal 	ERA40	29.41	1.08

Total Performance Index is : 560.5476
Partial PI (atm only) is   : 0.6128

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1929 1929

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.4082 	land 	CRU	25.13	0.93
msl 	  2.3137 	global 	COADS	11.69	0.19
qnet 	 19.7316 	ocean 	OAFLUX	14.24	1.38
tp 	 33.9312 	global 	CMAP	38.87	0.87
ewss 	  8.2071 	ocean 	DASILVA	4.03	2.03
nsss 	  5.0820 	ocean 	DASILVA	3.10	1.63
SST 	 28.6305 	ocean 	GISS	17.21	1.66
SSS 	  0.1444 	ocean 	levitus	0.22	0.65
SICE 	2473.6073 	ocean 	GISS	0.34	7275.31
T 	 21.5301 	zonal 	ERA40	38.89	0.55
U 	  3.5251 	zonal 	ERA40	12.07	0.29
V 	  2.3195 	zonal 	ERA40	8.25	0.28
Q 	 24.9282 	zonal 	ERA40	29.41	0.84

Total Performance Index is : 560.5084
Partial PI (atm only) is   : 0.5642