Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1949 1949

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 26.7691 	land 	CRU	25.13	1.06
msl 	  3.0073 	global 	COADS	11.69	0.25
qnet 	 20.6389 	ocean 	OAFLUX	14.24	1.44
tp 	 42.1439 	global 	CMAP	38.87	1.08
ewss 	  8.7083 	ocean 	DASILVA	4.03	2.16
nsss 	  6.3473 	ocean 	DASILVA	3.10	2.04
SST 	 33.2317 	ocean 	GISS	17.21	1.93
SSS 	  0.1590 	ocean 	levitus	0.22	0.72
SICE 	2744.3241 	ocean 	GISS	0.34	8071.54
T 	 23.3783 	zonal 	ERA40	38.89	0.60
U 	  3.5189 	zonal 	ERA40	12.07	0.29
V 	  2.6319 	zonal 	ERA40	8.25	0.31
Q 	 32.9972 	zonal 	ERA40	29.41	1.12

Total Performance Index is : 621.8876
Partial PI (atm only) is   : 0.6728

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1949 1949

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 25.2776 	land 	CRU	25.13	1.00
msl 	  3.0073 	global 	COADS	11.69	0.25
qnet 	 19.4294 	ocean 	OAFLUX	14.24	1.36
tp 	 42.1439 	global 	CMAP	38.87	1.08
ewss 	  9.2594 	ocean 	DASILVA	4.03	2.29
nsss 	  6.0487 	ocean 	DASILVA	3.10	1.95
SST 	 33.2317 	ocean 	GISS	17.21	1.93
SSS 	  0.1590 	ocean 	levitus	0.22	0.72
SICE 	2744.3241 	ocean 	GISS	0.34	8071.54
T 	 21.5999 	zonal 	ERA40	38.89	0.55
U 	  3.2319 	zonal 	ERA40	12.07	0.26
V 	  2.4979 	zonal 	ERA40	8.25	0.30
Q 	 26.0845 	zonal 	ERA40	29.41	0.88

Total Performance Index is : 621.8546
Partial PI (atm only) is   : 0.6171