Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c585 2020 2020

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.1113 	land 	CRU	25.13	0.60
msl 	  2.3251 	global 	COADS	11.69	0.19
qnet 	 19.5484 	ocean 	OAFLUX	14.24	1.37
tp 	 34.4917 	global 	CMAP	38.87	0.88
ewss 	  8.1112 	ocean 	DASILVA	4.03	2.01
nsss 	  5.7167 	ocean 	DASILVA	3.10	1.84
SST 	 45.6923 	ocean 	GISS	17.21	2.65
SSS 	  0.1601 	ocean 	levitus	0.22	0.72
SICE 	1864.9167 	ocean 	GISS	0.34	5485.04
T 	 31.6087 	zonal 	ERA40	38.89	0.81
U 	  3.4952 	zonal 	ERA40	12.07	0.28
V 	  2.6264 	zonal 	ERA40	8.25	0.31
Q 	 27.3005 	zonal 	ERA40	29.41	0.92

Total Performance Index is : 422.8938
Partial PI (atm only) is   : 0.5700

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c585 2020 2020

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 11.6177 	land 	CRU	25.13	0.46
msl 	  2.3251 	global 	COADS	11.69	0.19
qnet 	 18.3723 	ocean 	OAFLUX	14.24	1.29
tp 	 34.4917 	global 	CMAP	38.87	0.88
ewss 	  8.5866 	ocean 	DASILVA	4.03	2.13
nsss 	  5.0670 	ocean 	DASILVA	3.10	1.63
SST 	 45.6923 	ocean 	GISS	17.21	2.65
SSS 	  0.1601 	ocean 	levitus	0.22	0.72
SICE 	1864.9167 	ocean 	GISS	0.34	5485.04
T 	 31.1586 	zonal 	ERA40	38.89	0.80
U 	  3.3494 	zonal 	ERA40	12.07	0.27
V 	  2.5312 	zonal 	ERA40	8.25	0.30
Q 	 22.1952 	zonal 	ERA40	29.41	0.75

Total Performance Index is : 422.8546
Partial PI (atm only) is   : 0.5214