Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
caaa 2016 2016

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 14.9392 	land 	CRU	25.13	0.59
msl 	  1.3081 	global 	COADS	11.69	0.11
qnet 	 20.3452 	ocean 	OAFLUX	14.24	1.42
tp 	 26.7793 	global 	CMAP	38.87	0.68
ewss 	 10.3570 	ocean 	DASILVA	4.03	2.56
nsss 	  4.9774 	ocean 	DASILVA	3.10	1.60
T 	  7.8239 	zonal 	ERA40	38.89	0.20
U 	  2.8424 	zonal 	ERA40	12.07	0.23
V 	  2.3110 	zonal 	ERA40	8.25	0.28
Q 	 12.8366 	zonal 	ERA40	29.41	0.43

Total Performance Index is : 3.3923
Partial PI (atm only) is   : 5.4014

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
caaa 2016 2016

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 11.8411 	land 	CRU	25.13	0.47
msl 	  1.3081 	global 	COADS	11.69	0.11
qnet 	 19.1728 	ocean 	OAFLUX	14.24	1.34
tp 	 26.7793 	global 	CMAP	38.87	0.68
ewss 	 12.3628 	ocean 	DASILVA	4.03	3.06
nsss 	  4.5641 	ocean 	DASILVA	3.10	1.47
SST 	  4.5641 	ocean 	GISS	17.21	0
SSS 	  4.5641 	ocean 	levitus	0.22	0
SICE 	  4.5641 	ocean 	GISS	0.34	0
T 	  7.3398 	zonal 	ERA40	38.89	0.18
U 	  2.7163 	zonal 	ERA40	12.07	0.22
V 	  2.1775 	zonal 	ERA40	8.25	0.26
Q 	  6.9062 	zonal 	ERA40	29.41	0.23

Total Performance Index is : 0.6169
Partial PI (atm only) is   : 0.3071