Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
vhis 2014 2014

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 17.3223 	land 	CRU	25.13	0.68
msl 	  1.8233 	global 	COADS	11.69	0.15
qnet 	 19.6956 	ocean 	OAFLUX	14.24	1.38
tp 	 39.3841 	global 	CMAP	38.87	1.01
ewss 	  8.7564 	ocean 	DASILVA	4.03	2.17
nsss 	  5.7781 	ocean 	DASILVA	3.10	1.86
SST 	 43.0201 	ocean 	GISS	17.21	2.49
SSS 	  0.1357 	ocean 	levitus	0.22	0.61
SICE 	1767.6519 	ocean 	GISS	0.34	5198.97
T 	 25.5590 	zonal 	ERA40	38.89	0.65
U 	  2.5341 	zonal 	ERA40	12.07	0.20
V 	  2.5468 	zonal 	ERA40	8.25	0.30
Q 	 27.1041 	zonal 	ERA40	29.41	0.92

Total Performance Index is : 400.8761
Partial PI (atm only) is   : 0.5585

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
vhis 2014 2014

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 14.7472 	land 	CRU	25.13	0.58
msl 	  1.8233 	global 	COADS	11.69	0.15
qnet 	 18.4596 	ocean 	OAFLUX	14.24	1.29
tp 	 39.3841 	global 	CMAP	38.87	1.01
ewss 	 10.1555 	ocean 	DASILVA	4.03	2.51
nsss 	  5.6665 	ocean 	DASILVA	3.10	1.82
SST 	 43.0201 	ocean 	GISS	17.21	2.49
SSS 	  0.1357 	ocean 	levitus	0.22	0.61
SICE 	1767.6519 	ocean 	GISS	0.34	5198.97
T 	 25.0800 	zonal 	ERA40	38.89	0.64
U 	  2.4160 	zonal 	ERA40	12.07	0.20
V 	  2.4367 	zonal 	ERA40	8.25	0.29
Q 	 21.7196 	zonal 	ERA40	29.41	0.73

Total Performance Index is : 400.8684
Partial PI (atm only) is   : 0.5142