Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 2010 2010

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 16.1070 	land 	CRU	25.13	0.64
msl 	  2.4121 	global 	COADS	11.69	0.20
qnet 	 20.1981 	ocean 	OAFLUX	14.24	1.41
tp 	 44.1588 	global 	CMAP	38.87	1.13
ewss 	  9.3436 	ocean 	DASILVA	4.03	2.31
nsss 	  6.7073 	ocean 	DASILVA	3.10	2.16
SST 	 38.7754 	ocean 	GISS	17.21	2.25
SSS 	  0.1468 	ocean 	levitus	0.22	0.66
SICE 	1811.8920 	ocean 	GISS	0.34	5329.09
T 	 22.4431 	zonal 	ERA40	38.89	0.57
U 	  3.5089 	zonal 	ERA40	12.07	0.29
V 	  2.7768 	zonal 	ERA40	8.25	0.33
Q 	 26.2217 	zonal 	ERA40	29.41	0.89

Total Performance Index is : 410.9176
Partial PI (atm only) is   : 0.5785

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 2010 2010

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 13.2614 	land 	CRU	25.13	0.52
msl 	  2.4121 	global 	COADS	11.69	0.20
qnet 	 18.9972 	ocean 	OAFLUX	14.24	1.33
tp 	 44.1588 	global 	CMAP	38.87	1.13
ewss 	 10.2341 	ocean 	DASILVA	4.03	2.53
nsss 	  5.6469 	ocean 	DASILVA	3.10	1.82
SST 	 38.7754 	ocean 	GISS	17.21	2.25
SSS 	  0.1468 	ocean 	levitus	0.22	0.66
SICE 	1811.8920 	ocean 	GISS	0.34	5329.09
T 	 21.8880 	zonal 	ERA40	38.89	0.56
U 	  3.3440 	zonal 	ERA40	12.07	0.27
V 	  2.6506 	zonal 	ERA40	8.25	0.32
Q 	 20.4596 	zonal 	ERA40	29.41	0.69

Total Performance Index is : 410.8746
Partial PI (atm only) is   : 0.5271