Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1944 1944

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 31.1124 	land 	CRU	25.13	1.23
msl 	  3.1371 	global 	COADS	11.69	0.26
qnet 	 20.9697 	ocean 	OAFLUX	14.24	1.47
tp 	 34.7545 	global 	CMAP	38.87	0.89
ewss 	  8.0666 	ocean 	DASILVA	4.03	2.00
nsss 	  5.8339 	ocean 	DASILVA	3.10	1.88
SST 	 32.8787 	ocean 	GISS	17.21	1.91
SSS 	  0.1791 	ocean 	levitus	0.22	0.81
SICE 	2856.9206 	ocean 	GISS	0.34	8402.70
T 	 26.3289 	zonal 	ERA40	38.89	0.67
U 	  3.8429 	zonal 	ERA40	12.07	0.31
V 	  2.6371 	zonal 	ERA40	8.25	0.31
Q 	 35.7454 	zonal 	ERA40	29.41	1.21

Total Performance Index is : 647.3576
Partial PI (atm only) is   : 0.6971

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1944 1944

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 29.9618 	land 	CRU	25.13	1.19
msl 	  3.1371 	global 	COADS	11.69	0.26
qnet 	 19.7846 	ocean 	OAFLUX	14.24	1.38
tp 	 34.7545 	global 	CMAP	38.87	0.89
ewss 	  8.0634 	ocean 	DASILVA	4.03	2.00
nsss 	  5.6774 	ocean 	DASILVA	3.10	1.83
SST 	 32.8787 	ocean 	GISS	17.21	1.91
SSS 	  0.1791 	ocean 	levitus	0.22	0.81
SICE 	2856.9206 	ocean 	GISS	0.34	8402.70
T 	 24.7608 	zonal 	ERA40	38.89	0.63
U 	  3.4726 	zonal 	ERA40	12.07	0.28
V 	  2.5223 	zonal 	ERA40	8.25	0.30
Q 	 28.8523 	zonal 	ERA40	29.41	0.98

Total Performance Index is : 647.3200
Partial PI (atm only) is   : 0.6471