Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1967 1967

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 34.0234 	land 	CRU	25.13	1.35
msl 	  4.1455 	global 	COADS	11.69	0.35
qnet 	 20.5962 	ocean 	OAFLUX	14.24	1.44
tp 	 36.5055 	global 	CMAP	38.87	0.93
ewss 	  8.3832 	ocean 	DASILVA	4.03	2.08
nsss 	  6.4448 	ocean 	DASILVA	3.10	2.07
SST 	 37.4715 	ocean 	GISS	17.21	2.17
SSS 	  0.1517 	ocean 	levitus	0.22	0.68
SICE 	2935.1645 	ocean 	GISS	0.34	8632.83
T 	 30.0175 	zonal 	ERA40	38.89	0.77
U 	  3.8222 	zonal 	ERA40	12.07	0.31
V 	  3.1518 	zonal 	ERA40	8.25	0.38
Q 	 42.4699 	zonal 	ERA40	29.41	1.44

Total Performance Index is : 665.1384
Partial PI (atm only) is   : 0.7900

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1967 1967

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 34.5083 	land 	CRU	25.13	1.37
msl 	  4.1455 	global 	COADS	11.69	0.35
qnet 	 19.3319 	ocean 	OAFLUX	14.24	1.35
tp 	 36.5055 	global 	CMAP	38.87	0.93
ewss 	  8.9222 	ocean 	DASILVA	4.03	2.21
nsss 	  6.3977 	ocean 	DASILVA	3.10	2.06
SST 	 37.4715 	ocean 	GISS	17.21	2.17
SSS 	  0.1517 	ocean 	levitus	0.22	0.68
SICE 	2935.1645 	ocean 	GISS	0.34	8632.83
T 	 28.4447 	zonal 	ERA40	38.89	0.73
U 	  3.4929 	zonal 	ERA40	12.07	0.28
V 	  3.0253 	zonal 	ERA40	8.25	0.36
Q 	 35.4294 	zonal 	ERA40	29.41	1.20

Total Performance Index is : 665.1169
Partial PI (atm only) is   : 0.7457