Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1890 1890

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 28.4514 	land 	CRU	25.13	1.13
msl 	  3.6304 	global 	COADS	11.69	0.31
qnet 	 21.0489 	ocean 	OAFLUX	14.24	1.47
tp 	 38.8395 	global 	CMAP	38.87	0.99
ewss 	  7.7361 	ocean 	DASILVA	4.03	1.91
nsss 	  6.3560 	ocean 	DASILVA	3.10	2.05
SST 	 32.6843 	ocean 	GISS	17.21	1.89
SSS 	  0.1754 	ocean 	levitus	0.22	0.79
SICE 	2697.9487 	ocean 	GISS	0.34	7935.14
T 	 28.8008 	zonal 	ERA40	38.89	0.74
U 	  4.4722 	zonal 	ERA40	12.07	0.37
V 	  2.9190 	zonal 	ERA40	8.25	0.35
Q 	 37.4346 	zonal 	ERA40	29.41	1.27

Total Performance Index is : 611.4161
Partial PI (atm only) is   : 0.7371

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1890 1890

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 27.5005 	land 	CRU	25.13	1.09
msl 	  3.6304 	global 	COADS	11.69	0.31
qnet 	 19.8722 	ocean 	OAFLUX	14.24	1.39
tp 	 38.8395 	global 	CMAP	38.87	0.99
ewss 	  7.9290 	ocean 	DASILVA	4.03	1.96
nsss 	  5.4748 	ocean 	DASILVA	3.10	1.76
SST 	 32.6843 	ocean 	GISS	17.21	1.89
SSS 	  0.1754 	ocean 	levitus	0.22	0.79
SICE 	2697.9487 	ocean 	GISS	0.34	7935.14
T 	 26.7386 	zonal 	ERA40	38.89	0.68
U 	  4.1548 	zonal 	ERA40	12.07	0.34
V 	  2.8095 	zonal 	ERA40	8.25	0.34
Q 	 29.9741 	zonal 	ERA40	29.41	1.01

Total Performance Index is : 611.3607
Partial PI (atm only) is   : 0.6800