Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1905 1905

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	231.9236 	land 	CRU	25.13	9.22
msl 	  3.4363 	global 	COADS	11.69	0.29
qnet 	 19.8312 	ocean 	OAFLUX	14.24	1.39
tp 	 56.1258 	global 	CMAP	38.87	1.44
ewss 	  9.6964 	ocean 	DASILVA	4.03	2.40
nsss 	  7.0289 	ocean 	DASILVA	3.10	2.26
SST 	297.8205 	ocean 	GISS	17.21	17.30
SSS 	  0.3046 	ocean 	levitus	0.22	1.38
SICE 	 60.1387 	ocean 	GISS	0.34	176.87
T 	405.5703 	zonal 	ERA40	38.89	10.42
U 	  7.7378 	zonal 	ERA40	12.07	0.64
V 	  3.6189 	zonal 	ERA40	8.25	0.43
Q 	368.8683 	zonal 	ERA40	29.41	12.54

Total Performance Index is : 18.1984
Partial PI (atm only) is   : 4.9971

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1905 1905

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	183.9923 	land 	CRU	25.13	7.32
msl 	  3.4363 	global 	COADS	11.69	0.29
qnet 	 18.7521 	ocean 	OAFLUX	14.24	1.31
tp 	 56.1258 	global 	CMAP	38.87	1.44
ewss 	 10.5049 	ocean 	DASILVA	4.03	2.60
nsss 	  5.8879 	ocean 	DASILVA	3.10	1.89
SST 	297.8205 	ocean 	GISS	17.21	17.30
SSS 	  0.3046 	ocean 	levitus	0.22	1.38
SICE 	 60.1387 	ocean 	GISS	0.34	176.87
T 	404.4907 	zonal 	ERA40	38.89	10.40
U 	  6.4918 	zonal 	ERA40	12.07	0.53
V 	  3.5207 	zonal 	ERA40	8.25	0.42
Q 	366.6355 	zonal 	ERA40	29.41	12.46

Total Performance Index is : 18.0161
Partial PI (atm only) is   : 4.6942