Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1900 1900

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 21.1896 	land 	CRU	25.13	0.84
msl 	  2.2149 	global 	COADS	11.69	0.18
qnet 	 20.6267 	ocean 	OAFLUX	14.24	1.44
tp 	 41.4917 	global 	CMAP	38.87	1.06
ewss 	  8.8546 	ocean 	DASILVA	4.03	2.19
nsss 	  5.5660 	ocean 	DASILVA	3.10	1.79
SST 	 31.4529 	ocean 	GISS	17.21	1.82
SSS 	  0.1361 	ocean 	levitus	0.22	0.61
SICE 	2444.3577 	ocean 	GISS	0.34	7189.28
T 	 22.9348 	zonal 	ERA40	38.89	0.58
U 	  2.9017 	zonal 	ERA40	12.07	0.24
V 	  2.0615 	zonal 	ERA40	8.25	0.24
Q 	 30.4494 	zonal 	ERA40	29.41	1.03

Total Performance Index is : 553.9461
Partial PI (atm only) is   : 0.5957

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1900 1900

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 19.5535 	land 	CRU	25.13	0.77
msl 	  2.2149 	global 	COADS	11.69	0.18
qnet 	 19.4394 	ocean 	OAFLUX	14.24	1.36
tp 	 41.4917 	global 	CMAP	38.87	1.06
ewss 	  8.9559 	ocean 	DASILVA	4.03	2.22
nsss 	  5.4034 	ocean 	DASILVA	3.10	1.74
SST 	 31.4529 	ocean 	GISS	17.21	1.82
SSS 	  0.1361 	ocean 	levitus	0.22	0.61
SICE 	2444.3577 	ocean 	GISS	0.34	7189.28
T 	 21.0118 	zonal 	ERA40	38.89	0.54
U 	  2.6237 	zonal 	ERA40	12.07	0.21
V 	  1.9426 	zonal 	ERA40	8.25	0.23
Q 	 23.1845 	zonal 	ERA40	29.41	0.78

Total Performance Index is : 553.9076
Partial PI (atm only) is   : 0.5385