Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 1924 1924

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 22.1869 	land 	CRU	25.13	0.88
msl 	  2.8084 	global 	COADS	11.69	0.24
qnet 	 20.1667 	ocean 	OAFLUX	14.24	1.41
tp 	 35.1944 	global 	CMAP	38.87	0.90
ewss 	  7.1922 	ocean 	DASILVA	4.03	1.78
nsss 	  5.4411 	ocean 	DASILVA	3.10	1.75
SST 	 28.3406 	ocean 	GISS	17.21	1.64
SSS 	  0.1432 	ocean 	levitus	0.22	0.65
SICE 	2464.2747 	ocean 	GISS	0.34	7247.86
T 	 20.7416 	zonal 	ERA40	38.89	0.53
U 	  3.0986 	zonal 	ERA40	12.07	0.25
V 	  2.2645 	zonal 	ERA40	8.25	0.27
Q 	 28.8005 	zonal 	ERA40	29.41	0.97

Total Performance Index is : 558.3946
Partial PI (atm only) is   : 0.5771

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 1924 1924

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 20.6642 	land 	CRU	25.13	0.82
msl 	  2.8084 	global 	COADS	11.69	0.24
qnet 	 18.9395 	ocean 	OAFLUX	14.24	1.33
tp 	 35.1944 	global 	CMAP	38.87	0.90
ewss 	  7.7237 	ocean 	DASILVA	4.03	1.91
nsss 	  4.6362 	ocean 	DASILVA	3.10	1.49
SST 	 28.3406 	ocean 	GISS	17.21	1.64
SSS 	  0.1432 	ocean 	levitus	0.22	0.65
SICE 	2464.2747 	ocean 	GISS	0.34	7247.86
T 	 18.9736 	zonal 	ERA40	38.89	0.48
U 	  2.7413 	zonal 	ERA40	12.07	0.22
V 	  2.1525 	zonal 	ERA40	8.25	0.26
Q 	 21.6489 	zonal 	ERA40	29.41	0.73

Total Performance Index is : 558.3484
Partial PI (atm only) is   : 0.5214