Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c370 2018 2018

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.7924 	land 	CRU	25.13	0.62
msl 	  1.6748 	global 	COADS	11.69	0.14
qnet 	 19.4663 	ocean 	OAFLUX	14.24	1.36
tp 	 46.6232 	global 	CMAP	38.87	1.19
ewss 	  7.3954 	ocean 	DASILVA	4.03	1.83
nsss 	  5.8458 	ocean 	DASILVA	3.10	1.88
SST 	 44.0276 	ocean 	GISS	17.21	2.55
SSS 	  0.1568 	ocean 	levitus	0.22	0.71
SICE 	1641.9082 	ocean 	GISS	0.34	4829.14
T 	 26.4489 	zonal 	ERA40	38.89	0.68
U 	  3.0899 	zonal 	ERA40	12.07	0.25
V 	  2.1178 	zonal 	ERA40	8.25	0.25
Q 	 27.1118 	zonal 	ERA40	29.41	0.92

Total Performance Index is : 372.4246
Partial PI (atm only) is   : 0.5785

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c370 2018 2018

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 12.4504 	land 	CRU	25.13	0.49
msl 	  1.6748 	global 	COADS	11.69	0.14
qnet 	 18.2351 	ocean 	OAFLUX	14.24	1.28
tp 	 46.6232 	global 	CMAP	38.87	1.19
ewss 	  7.4545 	ocean 	DASILVA	4.03	1.84
nsss 	  5.2152 	ocean 	DASILVA	3.10	1.68
SST 	 44.0276 	ocean 	GISS	17.21	2.55
SSS 	  0.1568 	ocean 	levitus	0.22	0.71
SICE 	1641.9082 	ocean 	GISS	0.34	4829.14
T 	 26.1065 	zonal 	ERA40	38.89	0.67
U 	  2.9847 	zonal 	ERA40	12.07	0.24
V 	  2.0107 	zonal 	ERA40	8.25	0.24
Q 	 21.8184 	zonal 	ERA40	29.41	0.74

Total Performance Index is : 372.3776
Partial PI (atm only) is   : 0.5300