Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1962 1962

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 26.9189 	land 	CRU	25.13	1.07
msl 	  2.9985 	global 	COADS	11.69	0.25
qnet 	 21.4039 	ocean 	OAFLUX	14.24	1.50
tp 	 31.9354 	global 	CMAP	38.87	0.82
ewss 	  8.5073 	ocean 	DASILVA	4.03	2.11
nsss 	  6.6132 	ocean 	DASILVA	3.10	2.13
SST 	 34.2541 	ocean 	GISS	17.21	1.99
SSS 	  0.1619 	ocean 	levitus	0.22	0.73
SICE 	2822.9217 	ocean 	GISS	0.34	8302.71
T 	 24.0194 	zonal 	ERA40	38.89	0.61
U 	  3.6351 	zonal 	ERA40	12.07	0.30
V 	  2.8784 	zonal 	ERA40	8.25	0.34
Q 	 35.8623 	zonal 	ERA40	29.41	1.21

Total Performance Index is : 639.6746
Partial PI (atm only) is   : 0.6571

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1962 1962

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 26.0424 	land 	CRU	25.13	1.03
msl 	  2.9985 	global 	COADS	11.69	0.25
qnet 	 20.1943 	ocean 	OAFLUX	14.24	1.41
tp 	 31.9354 	global 	CMAP	38.87	0.82
ewss 	  8.7756 	ocean 	DASILVA	4.03	2.17
nsss 	  6.5286 	ocean 	DASILVA	3.10	2.10
SST 	 34.2541 	ocean 	GISS	17.21	1.99
SSS 	  0.1619 	ocean 	levitus	0.22	0.73
SICE 	2822.9217 	ocean 	GISS	0.34	8302.71
T 	 22.5122 	zonal 	ERA40	38.89	0.57
U 	  3.3830 	zonal 	ERA40	12.07	0.28
V 	  2.7528 	zonal 	ERA40	8.25	0.33
Q 	 29.1540 	zonal 	ERA40	29.41	0.99

Total Performance Index is : 639.6446
Partial PI (atm only) is   : 0.6100