Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1874 1874

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 27.3452 	land 	CRU	25.13	1.08
msl 	  2.8253 	global 	COADS	11.69	0.24
qnet 	 20.6065 	ocean 	OAFLUX	14.24	1.44
tp 	 34.4949 	global 	CMAP	38.87	0.88
ewss 	  8.3329 	ocean 	DASILVA	4.03	2.06
nsss 	  5.5812 	ocean 	DASILVA	3.10	1.80
SST 	 28.8054 	ocean 	GISS	17.21	1.67
SSS 	  0.1530 	ocean 	levitus	0.22	0.69
SICE 	2715.5892 	ocean 	GISS	0.34	7987.02
T 	 24.5540 	zonal 	ERA40	38.89	0.63
U 	  3.3017 	zonal 	ERA40	12.07	0.27
V 	  2.3215 	zonal 	ERA40	8.25	0.28
Q 	 33.4078 	zonal 	ERA40	29.41	1.13

Total Performance Index is : 615.3223
Partial PI (atm only) is   : 0.6442

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1874 1874

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 26.8099 	land 	CRU	25.13	1.06
msl 	  2.8253 	global 	COADS	11.69	0.24
qnet 	 19.4209 	ocean 	OAFLUX	14.24	1.36
tp 	 34.4949 	global 	CMAP	38.87	0.88
ewss 	  8.4244 	ocean 	DASILVA	4.03	2.09
nsss 	  4.9035 	ocean 	DASILVA	3.10	1.58
SST 	 28.8054 	ocean 	GISS	17.21	1.67
SSS 	  0.1530 	ocean 	levitus	0.22	0.69
SICE 	2715.5892 	ocean 	GISS	0.34	7987.02
T 	 22.4652 	zonal 	ERA40	38.89	0.57
U 	  2.9584 	zonal 	ERA40	12.07	0.24
V 	  2.1925 	zonal 	ERA40	8.25	0.26
Q 	 25.9096 	zonal 	ERA40	29.41	0.88

Total Performance Index is : 615.2723
Partial PI (atm only) is   : 0.5900