Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1950 1950

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 27.9518 	land 	CRU	25.13	1.11
msl 	  2.6815 	global 	COADS	11.69	0.22
qnet 	 20.1109 	ocean 	OAFLUX	14.24	1.41
tp 	 40.9561 	global 	CMAP	38.87	1.05
ewss 	  8.0307 	ocean 	DASILVA	4.03	1.99
nsss 	  5.4357 	ocean 	DASILVA	3.10	1.75
SST 	 31.5154 	ocean 	GISS	17.21	1.83
SSS 	  0.1554 	ocean 	levitus	0.22	0.70
SICE 	2800.3310 	ocean 	GISS	0.34	8236.26
T 	 24.1274 	zonal 	ERA40	38.89	0.62
U 	  3.9143 	zonal 	ERA40	12.07	0.32
V 	  2.6318 	zonal 	ERA40	8.25	0.31
Q 	 33.6841 	zonal 	ERA40	29.41	1.14

Total Performance Index is : 634.5161
Partial PI (atm only) is   : 0.6814

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1950 1950

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 27.5556 	land 	CRU	25.13	1.09
msl 	  2.6815 	global 	COADS	11.69	0.22
qnet 	 18.8625 	ocean 	OAFLUX	14.24	1.32
tp 	 40.9561 	global 	CMAP	38.87	1.05
ewss 	  7.8658 	ocean 	DASILVA	4.03	1.95
nsss 	  5.2554 	ocean 	DASILVA	3.10	1.69
SST 	 31.5154 	ocean 	GISS	17.21	1.83
SSS 	  0.1554 	ocean 	levitus	0.22	0.70
SICE 	2800.3310 	ocean 	GISS	0.34	8236.26
T 	 22.4178 	zonal 	ERA40	38.89	0.57
U 	  3.5933 	zonal 	ERA40	12.07	0.29
V 	  2.5199 	zonal 	ERA40	8.25	0.30
Q 	 26.6058 	zonal 	ERA40	29.41	0.90

Total Performance Index is : 634.4746
Partial PI (atm only) is   : 0.6314