Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1944 1944

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.7056 	land 	CRU	25.13	0.94
msl 	  3.5975 	global 	COADS	11.69	0.30
qnet 	 20.6058 	ocean 	OAFLUX	14.24	1.44
tp 	 45.5556 	global 	CMAP	38.87	1.17
ewss 	  7.5175 	ocean 	DASILVA	4.03	1.86
nsss 	  5.6964 	ocean 	DASILVA	3.10	1.83
SST 	 31.5412 	ocean 	GISS	17.21	1.83
SSS 	  0.1434 	ocean 	levitus	0.22	0.65
SICE 	2331.1480 	ocean 	GISS	0.34	6856.31
T 	 22.8572 	zonal 	ERA40	38.89	0.58
U 	  3.8862 	zonal 	ERA40	12.07	0.32
V 	  2.1862 	zonal 	ERA40	8.25	0.26
Q 	 30.6983 	zonal 	ERA40	29.41	1.04

Total Performance Index is : 528.3484
Partial PI (atm only) is   : 0.6585

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1944 1944

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.7333 	land 	CRU	25.13	0.82
msl 	  3.5975 	global 	COADS	11.69	0.30
qnet 	 19.4060 	ocean 	OAFLUX	14.24	1.36
tp 	 45.5556 	global 	CMAP	38.87	1.17
ewss 	  7.4781 	ocean 	DASILVA	4.03	1.85
nsss 	  5.1951 	ocean 	DASILVA	3.10	1.67
SST 	 31.5412 	ocean 	GISS	17.21	1.83
SSS 	  0.1434 	ocean 	levitus	0.22	0.65
SICE 	2331.1480 	ocean 	GISS	0.34	6856.31
T 	 21.3117 	zonal 	ERA40	38.89	0.54
U 	  3.5711 	zonal 	ERA40	12.07	0.29
V 	  2.0498 	zonal 	ERA40	8.25	0.24
Q 	 23.7372 	zonal 	ERA40	29.41	0.80

Total Performance Index is : 528.2946
Partial PI (atm only) is   : 0.5942