Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
v370 2015 2015

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 16.9299 	land 	CRU	25.13	0.67
msl 	  2.0288 	global 	COADS	11.69	0.17
qnet 	 19.3287 	ocean 	OAFLUX	14.24	1.35
tp 	 41.6962 	global 	CMAP	38.87	1.07
ewss 	  8.5856 	ocean 	DASILVA	4.03	2.13
nsss 	  6.8381 	ocean 	DASILVA	3.10	2.20
SST 	 44.0357 	ocean 	GISS	17.21	2.55
SSS 	  0.1445 	ocean 	levitus	0.22	0.65
SICE 	1864.3076 	ocean 	GISS	0.34	5483.25
T 	 26.8636 	zonal 	ERA40	38.89	0.69
U 	  3.1162 	zonal 	ERA40	12.07	0.25
V 	  3.0437 	zonal 	ERA40	8.25	0.36
Q 	 25.4938 	zonal 	ERA40	29.41	0.86

Total Performance Index is : 422.7846
Partial PI (atm only) is   : 0.5814

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
v370 2015 2015

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 14.1312 	land 	CRU	25.13	0.56
msl 	  2.0288 	global 	COADS	11.69	0.17
qnet 	 18.0995 	ocean 	OAFLUX	14.24	1.27
tp 	 41.6962 	global 	CMAP	38.87	1.07
ewss 	 10.0329 	ocean 	DASILVA	4.03	2.48
nsss 	  5.9528 	ocean 	DASILVA	3.10	1.92
SST 	 44.0357 	ocean 	GISS	17.21	2.55
SSS 	  0.1445 	ocean 	levitus	0.22	0.65
SICE 	1864.3076 	ocean 	GISS	0.34	5483.25
T 	 26.3909 	zonal 	ERA40	38.89	0.67
U 	  2.9841 	zonal 	ERA40	12.07	0.24
V 	  2.9541 	zonal 	ERA40	8.25	0.35
Q 	 20.0867 	zonal 	ERA40	29.41	0.68

Total Performance Index is : 422.7584
Partial PI (atm only) is   : 0.5342