Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
v370 2018 2018

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.5824 	land 	CRU	25.13	0.62
msl 	  1.9797 	global 	COADS	11.69	0.16
qnet 	 19.5322 	ocean 	OAFLUX	14.24	1.37
tp 	 58.9955 	global 	CMAP	38.87	1.51
ewss 	  8.8259 	ocean 	DASILVA	4.03	2.19
nsss 	  5.8522 	ocean 	DASILVA	3.10	1.88
SST 	 45.1448 	ocean 	GISS	17.21	2.62
SSS 	  0.1466 	ocean 	levitus	0.22	0.66
SICE 	1717.3129 	ocean 	GISS	0.34	5050.92
T 	 26.3052 	zonal 	ERA40	38.89	0.67
U 	  2.8008 	zonal 	ERA40	12.07	0.23
V 	  2.1820 	zonal 	ERA40	8.25	0.26
Q 	 27.0558 	zonal 	ERA40	29.41	0.91

Total Performance Index is : 389.5384
Partial PI (atm only) is   : 0.6228

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
v370 2018 2018

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 11.9689 	land 	CRU	25.13	0.47
msl 	  1.9797 	global 	COADS	11.69	0.16
qnet 	 18.3085 	ocean 	OAFLUX	14.24	1.28
tp 	 58.9955 	global 	CMAP	38.87	1.51
ewss 	  9.1883 	ocean 	DASILVA	4.03	2.27
nsss 	  4.7999 	ocean 	DASILVA	3.10	1.54
SST 	 45.1448 	ocean 	GISS	17.21	2.62
SSS 	  0.1466 	ocean 	levitus	0.22	0.66
SICE 	1717.3129 	ocean 	GISS	0.34	5050.92
T 	 25.9503 	zonal 	ERA40	38.89	0.66
U 	  2.6704 	zonal 	ERA40	12.07	0.22
V 	  2.0723 	zonal 	ERA40	8.25	0.25
Q 	 21.8236 	zonal 	ERA40	29.41	0.74

Total Performance Index is : 389.4846
Partial PI (atm only) is   : 0.5728