Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 2012 2012

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 16.9469 	land 	CRU	25.13	0.67
msl 	  2.4114 	global 	COADS	11.69	0.20
qnet 	 19.3874 	ocean 	OAFLUX	14.24	1.36
tp 	 39.9248 	global 	CMAP	38.87	1.02
ewss 	  8.1183 	ocean 	DASILVA	4.03	2.01
nsss 	  6.0271 	ocean 	DASILVA	3.10	1.94
SST 	 41.6912 	ocean 	GISS	17.21	2.42
SSS 	  0.1492 	ocean 	levitus	0.22	0.67
SICE 	1850.2389 	ocean 	GISS	0.34	5441.87
T 	 22.6571 	zonal 	ERA40	38.89	0.58
U 	  2.9921 	zonal 	ERA40	12.07	0.24
V 	  2.6551 	zonal 	ERA40	8.25	0.32
Q 	 23.5282 	zonal 	ERA40	29.41	0.80

Total Performance Index is : 419.5461
Partial PI (atm only) is   : 0.5471

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 2012 2012

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 14.3276 	land 	CRU	25.13	0.57
msl 	  2.4114 	global 	COADS	11.69	0.20
qnet 	 18.1565 	ocean 	OAFLUX	14.24	1.27
tp 	 39.9248 	global 	CMAP	38.87	1.02
ewss 	  8.4082 	ocean 	DASILVA	4.03	2.08
nsss 	  5.6581 	ocean 	DASILVA	3.10	1.82
SST 	 41.6912 	ocean 	GISS	17.21	2.42
SSS 	  0.1492 	ocean 	levitus	0.22	0.67
SICE 	1850.2389 	ocean 	GISS	0.34	5441.87
T 	 22.1476 	zonal 	ERA40	38.89	0.56
U 	  2.8616 	zonal 	ERA40	12.07	0.23
V 	  2.5289 	zonal 	ERA40	8.25	0.30
Q 	 18.0583 	zonal 	ERA40	29.41	0.61

Total Performance Index is : 419.5092
Partial PI (atm only) is   : 0.4985