Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1913 1913

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	229.7241 	land 	CRU	25.13	9.14
msl 	  3.7356 	global 	COADS	11.69	0.31
qnet 	 21.1671 	ocean 	OAFLUX	14.24	1.48
tp 	 72.8543 	global 	CMAP	38.87	1.87
ewss 	 10.5271 	ocean 	DASILVA	4.03	2.61
nsss 	  8.2116 	ocean 	DASILVA	3.10	2.64
SST 	305.0729 	ocean 	GISS	17.21	17.72
SSS 	  0.3136 	ocean 	levitus	0.22	1.42
SICE 	 90.9919 	ocean 	GISS	0.34	267.62
T 	422.7627 	zonal 	ERA40	38.89	10.87
U 	  6.5341 	zonal 	ERA40	12.07	0.54
V 	  3.6827 	zonal 	ERA40	8.25	0.44
Q 	386.8140 	zonal 	ERA40	29.41	13.15

Total Performance Index is : 25.3700
Partial PI (atm only) is   : 5.1885

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1913 1913

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	178.6748 	land 	CRU	25.13	7.11
msl 	  3.7356 	global 	COADS	11.69	0.31
qnet 	 20.0846 	ocean 	OAFLUX	14.24	1.41
tp 	 72.8543 	global 	CMAP	38.87	1.87
ewss 	 12.2353 	ocean 	DASILVA	4.03	3.03
nsss 	  7.2249 	ocean 	DASILVA	3.10	2.33
SST 	305.0729 	ocean 	GISS	17.21	17.72
SSS 	  0.3136 	ocean 	levitus	0.22	1.42
SICE 	 90.9919 	ocean 	GISS	0.34	267.62
T 	421.7474 	zonal 	ERA40	38.89	10.84
U 	  5.1955 	zonal 	ERA40	12.07	0.43
V 	  3.6050 	zonal 	ERA40	8.25	0.43
Q 	384.6474 	zonal 	ERA40	29.41	13.07

Total Performance Index is : 25.1992
Partial PI (atm only) is   : 4.8657