Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1927 1927

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.7449 	land 	CRU	25.13	0.94
msl 	  2.2218 	global 	COADS	11.69	0.19
qnet 	 19.6429 	ocean 	OAFLUX	14.24	1.37
tp 	 41.8825 	global 	CMAP	38.87	1.07
ewss 	  7.8740 	ocean 	DASILVA	4.03	1.95
nsss 	  5.9262 	ocean 	DASILVA	3.10	1.91
SST 	 26.6143 	ocean 	GISS	17.21	1.54
SSS 	  0.1387 	ocean 	levitus	0.22	0.63
SICE 	2399.2973 	ocean 	GISS	0.34	7056.75
T 	 22.2961 	zonal 	ERA40	38.89	0.57
U 	  3.2999 	zonal 	ERA40	12.07	0.27
V 	  2.3511 	zonal 	ERA40	8.25	0.28
Q 	 31.8691 	zonal 	ERA40	29.41	1.08

Total Performance Index is : 543.7346
Partial PI (atm only) is   : 0.6285

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1927 1927

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.0126 	land 	CRU	25.13	0.91
msl 	  2.2218 	global 	COADS	11.69	0.19
qnet 	 18.4188 	ocean 	OAFLUX	14.24	1.29
tp 	 41.8825 	global 	CMAP	38.87	1.07
ewss 	  8.5574 	ocean 	DASILVA	4.03	2.12
nsss 	  5.2404 	ocean 	DASILVA	3.10	1.69
SST 	 26.6143 	ocean 	GISS	17.21	1.54
SSS 	  0.1387 	ocean 	levitus	0.22	0.63
SICE 	2399.2973 	ocean 	GISS	0.34	7056.75
T 	 20.4611 	zonal 	ERA40	38.89	0.52
U 	  3.0730 	zonal 	ERA40	12.07	0.25
V 	  2.2334 	zonal 	ERA40	8.25	0.27
Q 	 24.6768 	zonal 	ERA40	29.41	0.83

Total Performance Index is : 543.6969
Partial PI (atm only) is   : 0.5771