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 	 32.5211 	land 	CRU	25.13	1.29
msl 	  2.3348 	global 	COADS	11.69	0.19
qnet 	 20.7955 	ocean 	OAFLUX	14.24	1.46
tp 	 38.1890 	global 	CMAP	38.87	0.98
ewss 	  8.8758 	ocean 	DASILVA	4.03	2.20
nsss 	  5.9793 	ocean 	DASILVA	3.10	1.92
SST 	 78.3673 	ocean 	GISS	17.21	4.55
SSS 	  0.1949 	ocean 	levitus	0.22	0.88
SICE 	1142.4692 	ocean 	GISS	0.34	3360.20
T 	 75.6803 	zonal 	ERA40	38.89	1.94
U 	  3.3189 	zonal 	ERA40	12.07	0.27
V 	  2.4626 	zonal 	ERA40	8.25	0.29
Q 	 49.3669 	zonal 	ERA40	29.41	1.67

Total Performance Index is : 259.8338
Partial PI (atm only) is   : 0.9471

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c245 2056 2056

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 19.7656 	land 	CRU	25.13	0.78
msl 	  2.3348 	global 	COADS	11.69	0.19
qnet 	 19.6574 	ocean 	OAFLUX	14.24	1.38
tp 	 38.1890 	global 	CMAP	38.87	0.98
ewss 	  9.4920 	ocean 	DASILVA	4.03	2.35
nsss 	  5.4981 	ocean 	DASILVA	3.10	1.77
SST 	 78.3673 	ocean 	GISS	17.21	4.55
SSS 	  0.1949 	ocean 	levitus	0.22	0.88
SICE 	1142.4692 	ocean 	GISS	0.34	3360.20
T 	 75.5410 	zonal 	ERA40	38.89	1.94
U 	  3.1120 	zonal 	ERA40	12.07	0.25
V 	  2.3696 	zonal 	ERA40	8.25	0.28
Q 	 45.2166 	zonal 	ERA40	29.41	1.53

Total Performance Index is : 259.7753
Partial PI (atm only) is   : 0.8500