Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1901 1901

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 28.9054 	land 	CRU	25.13	1.15
msl 	  2.6099 	global 	COADS	11.69	0.22
qnet 	 20.1560 	ocean 	OAFLUX	14.24	1.41
tp 	 31.1790 	global 	CMAP	38.87	0.80
ewss 	  7.8438 	ocean 	DASILVA	4.03	1.94
nsss 	  6.0607 	ocean 	DASILVA	3.10	1.95
SST 	 26.0261 	ocean 	GISS	17.21	1.51
SSS 	  0.1788 	ocean 	levitus	0.22	0.81
SICE 	2743.9905 	ocean 	GISS	0.34	8070.56
T 	 26.3527 	zonal 	ERA40	38.89	0.67
U 	  3.8563 	zonal 	ERA40	12.07	0.31
V 	  2.3691 	zonal 	ERA40	8.25	0.28
Q 	 34.0558 	zonal 	ERA40	29.41	1.15

Total Performance Index is : 621.7507
Partial PI (atm only) is   : 0.6542

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1901 1901

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 26.6502 	land 	CRU	25.13	1.06
msl 	  2.6099 	global 	COADS	11.69	0.22
qnet 	 18.9592 	ocean 	OAFLUX	14.24	1.33
tp 	 31.1790 	global 	CMAP	38.87	0.80
ewss 	  8.2087 	ocean 	DASILVA	4.03	2.03
nsss 	  5.1731 	ocean 	DASILVA	3.10	1.66
SST 	 26.0261 	ocean 	GISS	17.21	1.51
SSS 	  0.1788 	ocean 	levitus	0.22	0.81
SICE 	2743.9905 	ocean 	GISS	0.34	8070.56
T 	 24.3483 	zonal 	ERA40	38.89	0.62
U 	  3.5408 	zonal 	ERA40	12.07	0.29
V 	  2.2491 	zonal 	ERA40	8.25	0.27
Q 	 26.6301 	zonal 	ERA40	29.41	0.90

Total Performance Index is : 621.6969
Partial PI (atm only) is   : 0.5942