Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1916 1916

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.8034 	land 	CRU	25.13	0.94
msl 	  3.1100 	global 	COADS	11.69	0.26
qnet 	 19.8720 	ocean 	OAFLUX	14.24	1.39
tp 	 32.9121 	global 	CMAP	38.87	0.84
ewss 	  8.8667 	ocean 	DASILVA	4.03	2.20
nsss 	  6.5138 	ocean 	DASILVA	3.10	2.10
SST 	 32.4656 	ocean 	GISS	17.21	1.88
SSS 	  0.1687 	ocean 	levitus	0.22	0.76
SICE 	2594.9719 	ocean 	GISS	0.34	7632.27
T 	 25.0292 	zonal 	ERA40	38.89	0.64
U 	  3.6756 	zonal 	ERA40	12.07	0.30
V 	  2.4594 	zonal 	ERA40	8.25	0.29
Q 	 32.3221 	zonal 	ERA40	29.41	1.09

Total Performance Index is : 588.0738
Partial PI (atm only) is   : 0.6228

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1916 1916

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 22.5323 	land 	CRU	25.13	0.89
msl 	  3.1100 	global 	COADS	11.69	0.26
qnet 	 18.6682 	ocean 	OAFLUX	14.24	1.31
tp 	 32.9121 	global 	CMAP	38.87	0.84
ewss 	  9.0219 	ocean 	DASILVA	4.03	2.23
nsss 	  5.8101 	ocean 	DASILVA	3.10	1.87
SST 	 32.4656 	ocean 	GISS	17.21	1.88
SSS 	  0.1687 	ocean 	levitus	0.22	0.76
SICE 	2594.9719 	ocean 	GISS	0.34	7632.27
T 	 23.0707 	zonal 	ERA40	38.89	0.59
U 	  3.4250 	zonal 	ERA40	12.07	0.28
V 	  2.3282 	zonal 	ERA40	8.25	0.28
Q 	 25.1344 	zonal 	ERA40	29.41	0.85

Total Performance Index is : 588.0238
Partial PI (atm only) is   : 0.5700