Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1859 1859

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 27.8528 	land 	CRU	25.13	1.10
msl 	  2.8849 	global 	COADS	11.69	0.24
qnet 	 20.9647 	ocean 	OAFLUX	14.24	1.47
tp 	 31.6307 	global 	CMAP	38.87	0.81
ewss 	  8.0701 	ocean 	DASILVA	4.03	2.00
nsss 	  5.9797 	ocean 	DASILVA	3.10	1.92
SST 	 27.4926 	ocean 	GISS	17.21	1.59
SSS 	  0.1507 	ocean 	levitus	0.22	0.68
SICE 	2693.8523 	ocean 	GISS	0.34	7923.09
T 	 24.0235 	zonal 	ERA40	38.89	0.61
U 	  3.5497 	zonal 	ERA40	12.07	0.29
V 	  2.4177 	zonal 	ERA40	8.25	0.29
Q 	 32.6606 	zonal 	ERA40	29.41	1.11

Total Performance Index is : 610.4000
Partial PI (atm only) is   : 0.6357

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1859 1859

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 26.1192 	land 	CRU	25.13	1.03
msl 	  2.8849 	global 	COADS	11.69	0.24
qnet 	 19.8155 	ocean 	OAFLUX	14.24	1.39
tp 	 31.6307 	global 	CMAP	38.87	0.81
ewss 	  7.9606 	ocean 	DASILVA	4.03	1.97
nsss 	  5.3443 	ocean 	DASILVA	3.10	1.72
SST 	 27.4926 	ocean 	GISS	17.21	1.59
SSS 	  0.1507 	ocean 	levitus	0.22	0.68
SICE 	2693.8523 	ocean 	GISS	0.34	7923.09
T 	 21.6415 	zonal 	ERA40	38.89	0.55
U 	  3.2647 	zonal 	ERA40	12.07	0.27
V 	  2.3026 	zonal 	ERA40	8.25	0.27
Q 	 24.9262 	zonal 	ERA40	29.41	0.84

Total Performance Index is : 610.3423
Partial PI (atm only) is   : 0.5728