Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
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Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 59.9773 	land 	CRU	25.13	2.38
msl 	  2.4066 	global 	COADS	11.69	0.20
qnet 	 19.9373 	ocean 	OAFLUX	14.24	1.40
tp 	 54.4335 	global 	CMAP	38.87	1.40
ewss 	  9.2801 	ocean 	DASILVA	4.03	2.30
nsss 	  6.4660 	ocean 	DASILVA	3.10	2.08
SST 	132.5561 	ocean 	GISS	17.21	7.70
SSS 	  0.2076 	ocean 	levitus	0.22	0.94
SICE 	625.4238 	ocean 	GISS	0.34	1839.48
T 	141.1699 	zonal 	ERA40	38.89	3.62
U 	  4.0968 	zonal 	ERA40	12.07	0.33
V 	  2.7033 	zonal 	ERA40	8.25	0.32
Q 	 99.8324 	zonal 	ERA40	29.41	3.39

Total Performance Index is : 143.5030
Partial PI (atm only) is   : 1.6628

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c585 2066 2066

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 43.2339 	land 	CRU	25.13	1.72
msl 	  2.4066 	global 	COADS	11.69	0.20
qnet 	 18.7390 	ocean 	OAFLUX	14.24	1.31
tp 	 54.4335 	global 	CMAP	38.87	1.40
ewss 	 10.1272 	ocean 	DASILVA	4.03	2.51
nsss 	  6.1037 	ocean 	DASILVA	3.10	1.96
SST 	132.5561 	ocean 	GISS	17.21	7.70
SSS 	  0.2076 	ocean 	levitus	0.22	0.94
SICE 	625.4238 	ocean 	GISS	0.34	1839.48
T 	140.9050 	zonal 	ERA40	38.89	3.62
U 	  3.8144 	zonal 	ERA40	12.07	0.31
V 	  2.6169 	zonal 	ERA40	8.25	0.31
Q 	 96.8789 	zonal 	ERA40	29.41	3.29

Total Performance Index is : 143.4423
Partial PI (atm only) is   : 1.5500