Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1892 1892

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 25.2906 	land 	CRU	25.13	1.00
msl 	  2.3816 	global 	COADS	11.69	0.20
qnet 	 20.4406 	ocean 	OAFLUX	14.24	1.43
tp 	 37.8830 	global 	CMAP	38.87	0.97
ewss 	  7.6803 	ocean 	DASILVA	4.03	1.90
nsss 	  5.5297 	ocean 	DASILVA	3.10	1.78
SST 	 33.0313 	ocean 	GISS	17.21	1.91
SSS 	  0.1382 	ocean 	levitus	0.22	0.62
SICE 	2646.2636 	ocean 	GISS	0.34	7783.12
T 	 25.2876 	zonal 	ERA40	38.89	0.65
U 	  3.9389 	zonal 	ERA40	12.07	0.32
V 	  2.4663 	zonal 	ERA40	8.25	0.29
Q 	 33.2577 	zonal 	ERA40	29.41	1.13

Total Performance Index is : 599.6400
Partial PI (atm only) is   : 0.6514

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1892 1892

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.2583 	land 	CRU	25.13	0.96
msl 	  2.3816 	global 	COADS	11.69	0.20
qnet 	 19.2673 	ocean 	OAFLUX	14.24	1.35
tp 	 37.8830 	global 	CMAP	38.87	0.97
ewss 	  7.5959 	ocean 	DASILVA	4.03	1.88
nsss 	  4.7686 	ocean 	DASILVA	3.10	1.53
SST 	 33.0313 	ocean 	GISS	17.21	1.91
SSS 	  0.1382 	ocean 	levitus	0.22	0.62
SICE 	2646.2636 	ocean 	GISS	0.34	7783.12
T 	 23.1509 	zonal 	ERA40	38.89	0.59
U 	  3.6392 	zonal 	ERA40	12.07	0.30
V 	  2.3473 	zonal 	ERA40	8.25	0.28
Q 	 26.0157 	zonal 	ERA40	29.41	0.88

Total Performance Index is : 599.5838
Partial PI (atm only) is   : 0.5971