Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c585 2017 2017

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.9497 	land 	CRU	25.13	0.63
msl 	  2.3277 	global 	COADS	11.69	0.19
qnet 	 20.8177 	ocean 	OAFLUX	14.24	1.46
tp 	 36.0481 	global 	CMAP	38.87	0.92
ewss 	  9.1239 	ocean 	DASILVA	4.03	2.26
nsss 	  5.6930 	ocean 	DASILVA	3.10	1.83
SST 	 49.3107 	ocean 	GISS	17.21	2.86
SSS 	  0.1505 	ocean 	levitus	0.22	0.68
SICE 	1813.0409 	ocean 	GISS	0.34	5332.47
T 	 36.2771 	zonal 	ERA40	38.89	0.93
U 	  3.7697 	zonal 	ERA40	12.07	0.31
V 	  2.7250 	zonal 	ERA40	8.25	0.33
Q 	 30.2814 	zonal 	ERA40	29.41	1.02

Total Performance Index is : 411.2223
Partial PI (atm only) is   : 0.6185

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c585 2017 2017

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 11.3836 	land 	CRU	25.13	0.45
msl 	  2.3277 	global 	COADS	11.69	0.19
qnet 	 19.7052 	ocean 	OAFLUX	14.24	1.38
tp 	 36.0481 	global 	CMAP	38.87	0.92
ewss 	 10.2182 	ocean 	DASILVA	4.03	2.53
nsss 	  5.3980 	ocean 	DASILVA	3.10	1.74
SST 	 49.3107 	ocean 	GISS	17.21	2.86
SSS 	  0.1505 	ocean 	levitus	0.22	0.68
SICE 	1813.0409 	ocean 	GISS	0.34	5332.47
T 	 35.8525 	zonal 	ERA40	38.89	0.92
U 	  3.6248 	zonal 	ERA40	12.07	0.30
V 	  2.6340 	zonal 	ERA40	8.25	0.31
Q 	 25.4029 	zonal 	ERA40	29.41	0.86

Total Performance Index is : 411.2007
Partial PI (atm only) is   : 0.5642