Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
v585 2017 2017

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 16.0835 	land 	CRU	25.13	0.64
msl 	  1.4282 	global 	COADS	11.69	0.12
qnet 	 20.1649 	ocean 	OAFLUX	14.24	1.41
tp 	 33.9440 	global 	CMAP	38.87	0.87
ewss 	  8.2278 	ocean 	DASILVA	4.03	2.04
nsss 	  5.7944 	ocean 	DASILVA	3.10	1.86
SST 	 44.0237 	ocean 	GISS	17.21	2.55
SSS 	  0.1357 	ocean 	levitus	0.22	0.61
SICE 	1723.6042 	ocean 	GISS	0.34	5069.42
T 	 27.0911 	zonal 	ERA40	38.89	0.69
U 	  2.5141 	zonal 	ERA40	12.07	0.20
V 	  2.4614 	zonal 	ERA40	8.25	0.29
Q 	 26.3423 	zonal 	ERA40	29.41	0.89

Total Performance Index is : 390.8915
Partial PI (atm only) is   : 0.5285

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
v585 2017 2017

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 12.7870 	land 	CRU	25.13	0.50
msl 	  1.4282 	global 	COADS	11.69	0.12
qnet 	 18.9645 	ocean 	OAFLUX	14.24	1.33
tp 	 33.9440 	global 	CMAP	38.87	0.87
ewss 	  8.4310 	ocean 	DASILVA	4.03	2.09
nsss 	  5.0058 	ocean 	DASILVA	3.10	1.61
SST 	 44.0237 	ocean 	GISS	17.21	2.55
SSS 	  0.1357 	ocean 	levitus	0.22	0.61
SICE 	1723.6042 	ocean 	GISS	0.34	5069.42
T 	 26.6821 	zonal 	ERA40	38.89	0.68
U 	  2.4147 	zonal 	ERA40	12.07	0.20
V 	  2.3612 	zonal 	ERA40	8.25	0.28
Q 	 21.0022 	zonal 	ERA40	29.41	0.71

Total Performance Index is : 390.8438
Partial PI (atm only) is   : 0.4800