Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1911 1911

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 26.2975 	land 	CRU	25.13	1.04
msl 	  2.4687 	global 	COADS	11.69	0.21
qnet 	 20.4485 	ocean 	OAFLUX	14.24	1.43
tp 	 40.8558 	global 	CMAP	38.87	1.05
ewss 	  8.1879 	ocean 	DASILVA	4.03	2.03
nsss 	  6.2681 	ocean 	DASILVA	3.10	2.02
SST 	 28.3872 	ocean 	GISS	17.21	1.64
SSS 	  0.1452 	ocean 	levitus	0.22	0.66
SICE 	2182.6279 	ocean 	GISS	0.34	6419.49
T 	 23.2196 	zonal 	ERA40	38.89	0.59
U 	  4.1785 	zonal 	ERA40	12.07	0.34
V 	  2.4316 	zonal 	ERA40	8.25	0.29
Q 	 28.5621 	zonal 	ERA40	29.41	0.97

Total Performance Index is : 494.7507
Partial PI (atm only) is   : 0.6414

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1911 1911

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.2403 	land 	CRU	25.13	0.92
msl 	  2.4687 	global 	COADS	11.69	0.21
qnet 	 19.2682 	ocean 	OAFLUX	14.24	1.35
tp 	 40.8558 	global 	CMAP	38.87	1.05
ewss 	  8.1334 	ocean 	DASILVA	4.03	2.01
nsss 	  5.4700 	ocean 	DASILVA	3.10	1.76
SST 	 28.3872 	ocean 	GISS	17.21	1.64
SSS 	  0.1452 	ocean 	levitus	0.22	0.66
SICE 	2182.6279 	ocean 	GISS	0.34	6419.49
T 	 21.3594 	zonal 	ERA40	38.89	0.54
U 	  3.8575 	zonal 	ERA40	12.07	0.31
V 	  2.3079 	zonal 	ERA40	8.25	0.27
Q 	 21.3738 	zonal 	ERA40	29.41	0.72

Total Performance Index is : 494.6869
Partial PI (atm only) is   : 0.5742