Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1858 1858

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 30.4929 	land 	CRU	25.13	1.21
msl 	  3.5244 	global 	COADS	11.69	0.30
qnet 	 20.8775 	ocean 	OAFLUX	14.24	1.46
tp 	 37.4414 	global 	CMAP	38.87	0.96
ewss 	  8.5943 	ocean 	DASILVA	4.03	2.13
nsss 	  5.4616 	ocean 	DASILVA	3.10	1.76
SST 	 28.8696 	ocean 	GISS	17.21	1.67
SSS 	  0.1524 	ocean 	levitus	0.22	0.69
SICE 	2678.0805 	ocean 	GISS	0.34	7876.70
T 	 25.8994 	zonal 	ERA40	38.89	0.66
U 	  4.3064 	zonal 	ERA40	12.07	0.35
V 	  2.9155 	zonal 	ERA40	8.25	0.35
Q 	 33.6624 	zonal 	ERA40	29.41	1.14

Total Performance Index is : 606.8753
Partial PI (atm only) is   : 0.7100

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1858 1858

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 28.0549 	land 	CRU	25.13	1.11
msl 	  3.5244 	global 	COADS	11.69	0.30
qnet 	 19.6953 	ocean 	OAFLUX	14.24	1.38
tp 	 37.4414 	global 	CMAP	38.87	0.96
ewss 	  8.3473 	ocean 	DASILVA	4.03	2.07
nsss 	  5.4402 	ocean 	DASILVA	3.10	1.75
SST 	 28.8696 	ocean 	GISS	17.21	1.67
SSS 	  0.1524 	ocean 	levitus	0.22	0.69
SICE 	2678.0805 	ocean 	GISS	0.34	7876.70
T 	 23.5200 	zonal 	ERA40	38.89	0.60
U 	  3.9490 	zonal 	ERA40	12.07	0.32
V 	  2.7668 	zonal 	ERA40	8.25	0.33
Q 	 26.1995 	zonal 	ERA40	29.41	0.89

Total Performance Index is : 606.8284
Partial PI (atm only) is   : 0.6442