Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1856 1856

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 31.6775 	land 	CRU	25.13	1.26
msl 	  3.3985 	global 	COADS	11.69	0.29
qnet 	 20.7040 	ocean 	OAFLUX	14.24	1.45
tp 	 33.7704 	global 	CMAP	38.87	0.86
ewss 	  8.0500 	ocean 	DASILVA	4.03	1.99
nsss 	  6.2055 	ocean 	DASILVA	3.10	2.00
SST 	 31.1437 	ocean 	GISS	17.21	1.80
SSS 	  0.1701 	ocean 	levitus	0.22	0.77
SICE 	2740.9452 	ocean 	GISS	0.34	8061.60
T 	 28.7817 	zonal 	ERA40	38.89	0.74
U 	  5.3591 	zonal 	ERA40	12.07	0.44
V 	  3.2602 	zonal 	ERA40	8.25	0.39
Q 	 35.7575 	zonal 	ERA40	29.41	1.21

Total Performance Index is : 621.1384
Partial PI (atm only) is   : 0.7414

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1856 1856

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 29.0436 	land 	CRU	25.13	1.15
msl 	  3.3985 	global 	COADS	11.69	0.29
qnet 	 19.4959 	ocean 	OAFLUX	14.24	1.36
tp 	 33.7704 	global 	CMAP	38.87	0.86
ewss 	  8.1176 	ocean 	DASILVA	4.03	2.01
nsss 	  5.3766 	ocean 	DASILVA	3.10	1.73
SST 	 31.1437 	ocean 	GISS	17.21	1.80
SSS 	  0.1701 	ocean 	levitus	0.22	0.77
SICE 	2740.9452 	ocean 	GISS	0.34	8061.60
T 	 26.3934 	zonal 	ERA40	38.89	0.67
U 	  5.0094 	zonal 	ERA40	12.07	0.41
V 	  3.1347 	zonal 	ERA40	8.25	0.37
Q 	 28.0572 	zonal 	ERA40	29.41	0.95

Total Performance Index is : 621.0746
Partial PI (atm only) is   : 0.6714