Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
v245 2018 2018

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 17.2072 	land 	CRU	25.13	0.68
msl 	  3.3727 	global 	COADS	11.69	0.28
qnet 	 20.0707 	ocean 	OAFLUX	14.24	1.40
tp 	 45.3619 	global 	CMAP	38.87	1.16
ewss 	  7.7482 	ocean 	DASILVA	4.03	1.92
nsss 	  5.8084 	ocean 	DASILVA	3.10	1.87
SST 	 41.3482 	ocean 	GISS	17.21	2.40
SSS 	  0.1443 	ocean 	levitus	0.22	0.65
SICE 	1833.8392 	ocean 	GISS	0.34	5393.64
T 	 23.2562 	zonal 	ERA40	38.89	0.59
U 	  4.3299 	zonal 	ERA40	12.07	0.35
V 	  2.8996 	zonal 	ERA40	8.25	0.35
Q 	 27.6958 	zonal 	ERA40	29.41	0.94

Total Performance Index is : 415.8638
Partial PI (atm only) is   : 0.6214

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
v245 2018 2018

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 14.3194 	land 	CRU	25.13	0.56
msl 	  3.3727 	global 	COADS	11.69	0.28
qnet 	 18.8523 	ocean 	OAFLUX	14.24	1.32
tp 	 45.3619 	global 	CMAP	38.87	1.16
ewss 	  8.2352 	ocean 	DASILVA	4.03	2.04
nsss 	  5.5223 	ocean 	DASILVA	3.10	1.78
SST 	 41.3482 	ocean 	GISS	17.21	2.40
SSS 	  0.1443 	ocean 	levitus	0.22	0.65
SICE 	1833.8392 	ocean 	GISS	0.34	5393.64
T 	 22.8834 	zonal 	ERA40	38.89	0.58
U 	  4.1312 	zonal 	ERA40	12.07	0.34
V 	  2.8024 	zonal 	ERA40	8.25	0.33
Q 	 22.3273 	zonal 	ERA40	29.41	0.75

Total Performance Index is : 415.8330
Partial PI (atm only) is   : 0.5714