Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c245 2020 2020

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.2314 	land 	CRU	25.13	0.60
msl 	  1.6651 	global 	COADS	11.69	0.14
qnet 	 19.7842 	ocean 	OAFLUX	14.24	1.38
tp 	 41.5316 	global 	CMAP	38.87	1.06
ewss 	  8.0663 	ocean 	DASILVA	4.03	2.00
nsss 	  5.0634 	ocean 	DASILVA	3.10	1.63
SST 	 47.3784 	ocean 	GISS	17.21	2.75
SSS 	  0.1320 	ocean 	levitus	0.22	0.60
SICE 	1797.3197 	ocean 	GISS	0.34	5286.23
T 	 29.2036 	zonal 	ERA40	38.89	0.75
U 	  2.6215 	zonal 	ERA40	12.07	0.21
V 	  2.0145 	zonal 	ERA40	8.25	0.24
Q 	 28.1034 	zonal 	ERA40	29.41	0.95

Total Performance Index is : 407.5800
Partial PI (atm only) is   : 0.5642

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c245 2020 2020

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 11.8425 	land 	CRU	25.13	0.47
msl 	  1.6651 	global 	COADS	11.69	0.14
qnet 	 18.5527 	ocean 	OAFLUX	14.24	1.30
tp 	 41.5316 	global 	CMAP	38.87	1.06
ewss 	  8.8787 	ocean 	DASILVA	4.03	2.20
nsss 	  5.0838 	ocean 	DASILVA	3.10	1.63
SST 	 47.3784 	ocean 	GISS	17.21	2.75
SSS 	  0.1320 	ocean 	levitus	0.22	0.60
SICE 	1797.3197 	ocean 	GISS	0.34	5286.23
T 	 28.8289 	zonal 	ERA40	38.89	0.74
U 	  2.4848 	zonal 	ERA40	12.07	0.20
V 	  1.9171 	zonal 	ERA40	8.25	0.23
Q 	 22.8459 	zonal 	ERA40	29.41	0.77

Total Performance Index is : 407.5630
Partial PI (atm only) is   : 0.5157