Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1855 1855

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 26.5135 	land 	CRU	25.13	1.05
msl 	  2.0578 	global 	COADS	11.69	0.17
qnet 	 20.4411 	ocean 	OAFLUX	14.24	1.43
tp 	 36.0444 	global 	CMAP	38.87	0.92
ewss 	  8.2690 	ocean 	DASILVA	4.03	2.05
nsss 	  5.6139 	ocean 	DASILVA	3.10	1.81
SST 	 24.1035 	ocean 	GISS	17.21	1.40
SSS 	  0.1623 	ocean 	levitus	0.22	0.73
SICE 	2836.4783 	ocean 	GISS	0.34	8342.58
T 	 23.1262 	zonal 	ERA40	38.89	0.59
U 	  2.9243 	zonal 	ERA40	12.07	0.24
V 	  2.3864 	zonal 	ERA40	8.25	0.28
Q 	 29.4902 	zonal 	ERA40	29.41	1.00

Total Performance Index is : 642.6346
Partial PI (atm only) is   : 0.6071

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1855 1855

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.2986 	land 	CRU	25.13	0.96
msl 	  2.0578 	global 	COADS	11.69	0.17
qnet 	 19.2734 	ocean 	OAFLUX	14.24	1.35
tp 	 36.0444 	global 	CMAP	38.87	0.92
ewss 	  9.1273 	ocean 	DASILVA	4.03	2.26
nsss 	  5.0176 	ocean 	DASILVA	3.10	1.61
SST 	 24.1035 	ocean 	GISS	17.21	1.40
SSS 	  0.1623 	ocean 	levitus	0.22	0.73
SICE 	2836.4783 	ocean 	GISS	0.34	8342.58
T 	 20.8143 	zonal 	ERA40	38.89	0.53
U 	  2.6581 	zonal 	ERA40	12.07	0.22
V 	  2.2664 	zonal 	ERA40	8.25	0.27
Q 	 21.9527 	zonal 	ERA40	29.41	0.74

Total Performance Index is : 642.5953
Partial PI (atm only) is   : 0.5442