Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1983 1983

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.1588 	land 	CRU	25.13	0.80
msl 	  2.1000 	global 	COADS	11.69	0.17
qnet 	 21.5342 	ocean 	OAFLUX	14.24	1.51
tp 	 36.2929 	global 	CMAP	38.87	0.93
ewss 	  8.8284 	ocean 	DASILVA	4.03	2.19
nsss 	  5.9907 	ocean 	DASILVA	3.10	1.93
SST 	 32.1838 	ocean 	GISS	17.21	1.87
SSS 	  0.1520 	ocean 	levitus	0.22	0.69
SICE 	2145.5739 	ocean 	GISS	0.34	6310.51
T 	 23.3300 	zonal 	ERA40	38.89	0.59
U 	  3.8543 	zonal 	ERA40	12.07	0.31
V 	  2.5943 	zonal 	ERA40	8.25	0.31
Q 	 29.0860 	zonal 	ERA40	29.41	0.98

Total Performance Index is : 486.3684
Partial PI (atm only) is   : 0.5842

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1983 1983

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 19.3017 	land 	CRU	25.13	0.76
msl 	  2.1000 	global 	COADS	11.69	0.17
qnet 	 20.3882 	ocean 	OAFLUX	14.24	1.43
tp 	 36.2929 	global 	CMAP	38.87	0.93
ewss 	  8.9764 	ocean 	DASILVA	4.03	2.22
nsss 	  5.3326 	ocean 	DASILVA	3.10	1.72
SST 	 32.1838 	ocean 	GISS	17.21	1.87
SSS 	  0.1520 	ocean 	levitus	0.22	0.69
SICE 	2145.5739 	ocean 	GISS	0.34	6310.51
T 	 22.1398 	zonal 	ERA40	38.89	0.56
U 	  3.7111 	zonal 	ERA40	12.07	0.30
V 	  2.4643 	zonal 	ERA40	8.25	0.29
Q 	 23.2233 	zonal 	ERA40	29.41	0.78

Total Performance Index is : 486.3253
Partial PI (atm only) is   : 0.5414