Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1976 1976

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.0167 	land 	CRU	25.13	0.95
msl 	  2.7969 	global 	COADS	11.69	0.23
qnet 	 19.9578 	ocean 	OAFLUX	14.24	1.40
tp 	 30.0914 	global 	CMAP	38.87	0.77
ewss 	  8.9169 	ocean 	DASILVA	4.03	2.21
nsss 	  6.6827 	ocean 	DASILVA	3.10	2.15
SST 	 33.7223 	ocean 	GISS	17.21	1.95
SSS 	  0.1613 	ocean 	levitus	0.22	0.73
SICE 	2717.4974 	ocean 	GISS	0.34	7992.63
T 	 24.9995 	zonal 	ERA40	38.89	0.64
U 	  4.7522 	zonal 	ERA40	12.07	0.39
V 	  3.0931 	zonal 	ERA40	8.25	0.37
Q 	 33.3087 	zonal 	ERA40	29.41	1.13

Total Performance Index is : 615.8115
Partial PI (atm only) is   : 0.6400

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1976 1976

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.7523 	land 	CRU	25.13	0.94
msl 	  2.7969 	global 	COADS	11.69	0.23
qnet 	 18.7583 	ocean 	OAFLUX	14.24	1.31
tp 	 30.0914 	global 	CMAP	38.87	0.77
ewss 	  9.2994 	ocean 	DASILVA	4.03	2.30
nsss 	  5.7429 	ocean 	DASILVA	3.10	1.85
SST 	 33.7223 	ocean 	GISS	17.21	1.95
SSS 	  0.1613 	ocean 	levitus	0.22	0.73
SICE 	2717.4974 	ocean 	GISS	0.34	7992.63
T 	 23.7939 	zonal 	ERA40	38.89	0.61
U 	  4.5008 	zonal 	ERA40	12.07	0.37
V 	  2.9767 	zonal 	ERA40	8.25	0.36
Q 	 26.9567 	zonal 	ERA40	29.41	0.91

Total Performance Index is : 615.7661
Partial PI (atm only) is   : 0.5985