Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
caaa 1987 1987

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 16.1201 	land 	CRU	25.13	0.64
msl 	  1.9590 	global 	COADS	11.69	0.16
qnet 	 19.4945 	ocean 	OAFLUX	14.24	1.36
tp 	 22.9155 	global 	CMAP	38.87	0.58
ewss 	 10.0804 	ocean 	DASILVA	4.03	2.50
nsss 	  4.8563 	ocean 	DASILVA	3.10	1.56
T 	  7.0652 	zonal 	ERA40	38.89	0.18
U 	  4.1769 	zonal 	ERA40	12.07	0.34
V 	  2.2346 	zonal 	ERA40	8.25	0.27
Q 	 17.9892 	zonal 	ERA40	29.41	0.61

Total Performance Index is : 3.4000
Partial PI (atm only) is   : 5.4271

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
caaa 1987 1987

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 12.8909 	land 	CRU	25.13	0.51
msl 	  1.9590 	global 	COADS	11.69	0.16
qnet 	 18.3192 	ocean 	OAFLUX	14.24	1.28
tp 	 22.9155 	global 	CMAP	38.87	0.58
ewss 	 12.1595 	ocean 	DASILVA	4.03	3.01
nsss 	  4.8347 	ocean 	DASILVA	3.10	1.55
SST 	  4.8347 	ocean 	GISS	17.21	0
SSS 	  4.8347 	ocean 	levitus	0.22	0
SICE 	  4.8347 	ocean 	GISS	0.34	0
T 	  6.1086 	zonal 	ERA40	38.89	0.15
U 	  4.0002 	zonal 	ERA40	12.07	0.33
V 	  2.1297 	zonal 	ERA40	8.25	0.25
Q 	 11.5337 	zonal 	ERA40	29.41	0.39

Total Performance Index is : 0.6315
Partial PI (atm only) is   : 0.3385