Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vaaa 1993 1993

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 22.4671 	land 	CRU	25.13	0.89
msl 	  1.5548 	global 	COADS	11.69	0.13
qnet 	 19.0910 	ocean 	OAFLUX	14.24	1.34
tp 	 24.0153 	global 	CMAP	38.87	0.61
ewss 	 10.0508 	ocean 	DASILVA	4.03	2.49
nsss 	  4.3581 	ocean 	DASILVA	3.10	1.40
T 	  9.6778 	zonal 	ERA40	38.89	0.24
U 	  2.7502 	zonal 	ERA40	12.07	0.22
V 	  1.8125 	zonal 	ERA40	8.25	0.21
Q 	 20.9527 	zonal 	ERA40	29.41	0.71

Total Performance Index is : 3.4030
Partial PI (atm only) is   : 5.4771

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vaaa 1993 1993

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.9617 	land 	CRU	25.13	0.83
msl 	  1.5548 	global 	COADS	11.69	0.13
qnet 	 17.8274 	ocean 	OAFLUX	14.24	1.25
tp 	 24.0153 	global 	CMAP	38.87	0.61
ewss 	 10.9975 	ocean 	DASILVA	4.03	2.72
nsss 	  4.2245 	ocean 	DASILVA	3.10	1.36
SST 	  4.2245 	ocean 	GISS	17.21	0
SSS 	  4.2245 	ocean 	levitus	0.22	0
SICE 	  4.2245 	ocean 	GISS	0.34	0
T 	  8.7462 	zonal 	ERA40	38.89	0.22
U 	  2.6412 	zonal 	ERA40	12.07	0.21
V 	  1.6934 	zonal 	ERA40	8.25	0.20
Q 	 15.0460 	zonal 	ERA40	29.41	0.51

Total Performance Index is : 0.6184
Partial PI (atm only) is   : 0.3871