Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1880 1880

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	171.7648 	land 	CRU	25.13	6.83
msl 	  3.2774 	global 	COADS	11.69	0.28
qnet 	 19.6205 	ocean 	OAFLUX	14.24	1.37
tp 	 55.6614 	global 	CMAP	38.87	1.43
ewss 	  9.7151 	ocean 	DASILVA	4.03	2.41
nsss 	  7.0756 	ocean 	DASILVA	3.10	2.28
SST 	224.1910 	ocean 	GISS	17.21	13.02
SSS 	  0.2507 	ocean 	levitus	0.22	1.13
SICE 	251.6609 	ocean 	GISS	0.34	740.17
T 	316.4194 	zonal 	ERA40	38.89	8.13
U 	  5.6658 	zonal 	ERA40	12.07	0.46
V 	  3.0031 	zonal 	ERA40	8.25	0.36
Q 	246.5894 	zonal 	ERA40	29.41	8.38

Total Performance Index is : 60.4807
Partial PI (atm only) is   : 3.6957

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1880 1880

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	133.5570 	land 	CRU	25.13	5.31
msl 	  3.2774 	global 	COADS	11.69	0.28
qnet 	 18.4934 	ocean 	OAFLUX	14.24	1.29
tp 	 55.6614 	global 	CMAP	38.87	1.43
ewss 	 10.8244 	ocean 	DASILVA	4.03	2.68
nsss 	  6.3507 	ocean 	DASILVA	3.10	2.04
SST 	224.1910 	ocean 	GISS	17.21	13.02
SSS 	  0.2507 	ocean 	levitus	0.22	1.13
SICE 	251.6609 	ocean 	GISS	0.34	740.17
T 	315.3937 	zonal 	ERA40	38.89	8.10
U 	  4.8778 	zonal 	ERA40	12.07	0.40
V 	  2.9134 	zonal 	ERA40	8.25	0.35
Q 	243.5661 	zonal 	ERA40	29.41	8.28

Total Performance Index is : 60.3446
Partial PI (atm only) is   : 3.4500