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 	 81.7409 	land 	CRU	25.13	3.25
msl 	  2.7328 	global 	COADS	11.69	0.23
qnet 	 19.8501 	ocean 	OAFLUX	14.24	1.39
tp 	 54.4354 	global 	CMAP	38.87	1.40
ewss 	  8.9655 	ocean 	DASILVA	4.03	2.22
nsss 	  6.8469 	ocean 	DASILVA	3.10	2.20
SST 	167.5994 	ocean 	GISS	17.21	9.73
SSS 	  0.2139 	ocean 	levitus	0.22	0.97
SICE 	508.0243 	ocean 	GISS	0.34	1494.18
T 	191.2050 	zonal 	ERA40	38.89	4.91
U 	  4.4556 	zonal 	ERA40	12.07	0.36
V 	  2.8210 	zonal 	ERA40	8.25	0.34
Q 	146.7058 	zonal 	ERA40	29.41	4.98

Total Performance Index is : 117.3969
Partial PI (atm only) is   : 2.2100

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c585 2076 2076

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 57.6369 	land 	CRU	25.13	2.29
msl 	  2.7328 	global 	COADS	11.69	0.23
qnet 	 18.6814 	ocean 	OAFLUX	14.24	1.31
tp 	 54.4354 	global 	CMAP	38.87	1.40
ewss 	  9.6512 	ocean 	DASILVA	4.03	2.39
nsss 	  5.9983 	ocean 	DASILVA	3.10	1.93
SST 	167.5994 	ocean 	GISS	17.21	9.73
SSS 	  0.2139 	ocean 	levitus	0.22	0.97
SICE 	508.0243 	ocean 	GISS	0.34	1494.18
T 	190.7937 	zonal 	ERA40	38.89	4.90
U 	  3.9882 	zonal 	ERA40	12.07	0.33
V 	  2.7228 	zonal 	ERA40	8.25	0.33
Q 	144.3880 	zonal 	ERA40	29.41	4.90

Total Performance Index is : 117.2992
Partial PI (atm only) is   : 2.0542