Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vaaa 1979 1979

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 21.7543 	land 	CRU	25.13	0.86
msl 	  1.7534 	global 	COADS	11.69	0.14
qnet 	 19.2220 	ocean 	OAFLUX	14.24	1.34
tp 	 24.3468 	global 	CMAP	38.87	0.62
ewss 	 10.0049 	ocean 	DASILVA	4.03	2.48
nsss 	  4.3916 	ocean 	DASILVA	3.10	1.41
T 	 10.1924 	zonal 	ERA40	38.89	0.26
U 	  2.5232 	zonal 	ERA40	12.07	0.20
V 	  1.7093 	zonal 	ERA40	8.25	0.20
Q 	 20.4944 	zonal 	ERA40	29.41	0.69

Total Performance Index is : 3.4000
Partial PI (atm only) is   : 5.4728

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vaaa 1979 1979

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 19.2135 	land 	CRU	25.13	0.76
msl 	  1.7534 	global 	COADS	11.69	0.14
qnet 	 17.9904 	ocean 	OAFLUX	14.24	1.26
tp 	 24.3468 	global 	CMAP	38.87	0.62
ewss 	 10.8476 	ocean 	DASILVA	4.03	2.69
nsss 	  4.1705 	ocean 	DASILVA	3.10	1.34
SST 	  4.1705 	ocean 	GISS	17.21	0
SSS 	  4.1705 	ocean 	levitus	0.22	0
SICE 	  4.1705 	ocean 	GISS	0.34	0
T 	  8.9296 	zonal 	ERA40	38.89	0.22
U 	  2.3282 	zonal 	ERA40	12.07	0.19
V 	  1.6007 	zonal 	ERA40	8.25	0.19
Q 	 13.7835 	zonal 	ERA40	29.41	0.46

Total Performance Index is : 0.6053
Partial PI (atm only) is   : 0.3685