Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1929 1929

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	259.8951 	land 	CRU	25.13	10.34
msl 	  3.1121 	global 	COADS	11.69	0.26
qnet 	 21.0411 	ocean 	OAFLUX	14.24	1.47
tp 	 60.3431 	global 	CMAP	38.87	1.55
ewss 	  8.7256 	ocean 	DASILVA	4.03	2.16
nsss 	  6.1657 	ocean 	DASILVA	3.10	1.98
SST 	366.1201 	ocean 	GISS	17.21	21.27
SSS 	  0.3474 	ocean 	levitus	0.22	1.57
SICE 	 51.5529 	ocean 	GISS	0.34	151.62
T 	483.1786 	zonal 	ERA40	38.89	12.42
U 	  6.9250 	zonal 	ERA40	12.07	0.57
V 	  4.0904 	zonal 	ERA40	8.25	0.49
Q 	482.1462 	zonal 	ERA40	29.41	16.39

Total Performance Index is : 17.0838
Partial PI (atm only) is   : 6.0028

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1929 1929

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	196.1399 	land 	CRU	25.13	7.80
msl 	  3.1121 	global 	COADS	11.69	0.26
qnet 	 19.9609 	ocean 	OAFLUX	14.24	1.40
tp 	 60.3431 	global 	CMAP	38.87	1.55
ewss 	  8.9235 	ocean 	DASILVA	4.03	2.21
nsss 	  5.3969 	ocean 	DASILVA	3.10	1.74
SST 	366.1201 	ocean 	GISS	17.21	21.27
SSS 	  0.3474 	ocean 	levitus	0.22	1.57
SICE 	 51.5529 	ocean 	GISS	0.34	151.62
T 	482.0520 	zonal 	ERA40	38.89	12.39
U 	  5.4966 	zonal 	ERA40	12.07	0.45
V 	  4.0073 	zonal 	ERA40	8.25	0.48
Q 	480.1135 	zonal 	ERA40	29.41	16.32

Total Performance Index is : 16.8507
Partial PI (atm only) is   : 5.6071