Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1998 1998

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.9308 	land 	CRU	25.13	0.83
msl 	  3.3853 	global 	COADS	11.69	0.28
qnet 	 19.7778 	ocean 	OAFLUX	14.24	1.38
tp 	 44.2421 	global 	CMAP	38.87	1.13
ewss 	  8.5406 	ocean 	DASILVA	4.03	2.11
nsss 	  6.5749 	ocean 	DASILVA	3.10	2.12
SST 	 33.4959 	ocean 	GISS	17.21	1.94
SSS 	  0.1650 	ocean 	levitus	0.22	0.75
SICE 	2506.3960 	ocean 	GISS	0.34	7371.75
T 	 21.0988 	zonal 	ERA40	38.89	0.54
U 	  3.7504 	zonal 	ERA40	12.07	0.31
V 	  3.0269 	zonal 	ERA40	8.25	0.36
Q 	 29.5230 	zonal 	ERA40	29.41	1.00

Total Performance Index is : 568.0384
Partial PI (atm only) is   : 0.6357

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1998 1998

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 19.6988 	land 	CRU	25.13	0.78
msl 	  3.3853 	global 	COADS	11.69	0.28
qnet 	 18.5481 	ocean 	OAFLUX	14.24	1.30
tp 	 44.2421 	global 	CMAP	38.87	1.13
ewss 	  8.8538 	ocean 	DASILVA	4.03	2.19
nsss 	  6.1674 	ocean 	DASILVA	3.10	1.98
SST 	 33.4959 	ocean 	GISS	17.21	1.94
SSS 	  0.1650 	ocean 	levitus	0.22	0.75
SICE 	2506.3960 	ocean 	GISS	0.34	7371.75
T 	 20.4074 	zonal 	ERA40	38.89	0.52
U 	  3.5701 	zonal 	ERA40	12.07	0.29
V 	  2.8860 	zonal 	ERA40	8.25	0.34
Q 	 23.4715 	zonal 	ERA40	29.41	0.79

Total Performance Index is : 568.0030
Partial PI (atm only) is   : 0.5900