Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1905 1905

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 21.2736 	land 	CRU	25.13	0.84
msl 	  1.9395 	global 	COADS	11.69	0.16
qnet 	 20.3063 	ocean 	OAFLUX	14.24	1.42
tp 	 34.8394 	global 	CMAP	38.87	0.89
ewss 	  8.5740 	ocean 	DASILVA	4.03	2.12
nsss 	  5.6099 	ocean 	DASILVA	3.10	1.80
SST 	 23.8661 	ocean 	GISS	17.21	1.38
SSS 	  0.1266 	ocean 	levitus	0.22	0.57
SICE 	2518.0562 	ocean 	GISS	0.34	7406.04
T 	 19.9507 	zonal 	ERA40	38.89	0.51
U 	  3.2157 	zonal 	ERA40	12.07	0.26
V 	  2.5740 	zonal 	ERA40	8.25	0.31
Q 	 27.5624 	zonal 	ERA40	29.41	0.93

Total Performance Index is : 570.5561
Partial PI (atm only) is   : 0.5571

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1905 1905

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 19.4520 	land 	CRU	25.13	0.77
msl 	  1.9395 	global 	COADS	11.69	0.16
qnet 	 19.1304 	ocean 	OAFLUX	14.24	1.34
tp 	 34.8394 	global 	CMAP	38.87	0.89
ewss 	  9.2972 	ocean 	DASILVA	4.03	2.30
nsss 	  5.0552 	ocean 	DASILVA	3.10	1.63
SST 	 23.8661 	ocean 	GISS	17.21	1.38
SSS 	  0.1266 	ocean 	levitus	0.22	0.57
SICE 	2518.0562 	ocean 	GISS	0.34	7406.04
T 	 17.9183 	zonal 	ERA40	38.89	0.46
U 	  2.9807 	zonal 	ERA40	12.07	0.24
V 	  2.4670 	zonal 	ERA40	8.25	0.29
Q 	 20.4439 	zonal 	ERA40	29.41	0.69

Total Performance Index is : 570.5200
Partial PI (atm only) is   : 0.5000