Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1974 1974

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	248.6692 	land 	CRU	25.13	9.89
msl 	  3.5845 	global 	COADS	11.69	0.30
qnet 	 21.5762 	ocean 	OAFLUX	14.24	1.51
tp 	 78.9305 	global 	CMAP	38.87	2.03
ewss 	  8.1249 	ocean 	DASILVA	4.03	2.01
nsss 	  6.4917 	ocean 	DASILVA	3.10	2.09
SST 	381.5176 	ocean 	GISS	17.21	22.16
SSS 	  0.3641 	ocean 	levitus	0.22	1.65
SICE 	 32.3508 	ocean 	GISS	0.34	95.14
T 	479.7076 	zonal 	ERA40	38.89	12.33
U 	  8.6250 	zonal 	ERA40	12.07	0.71
V 	  3.9695 	zonal 	ERA40	8.25	0.48
Q 	473.9623 	zonal 	ERA40	29.41	16.11

Total Performance Index is : 12.8007
Partial PI (atm only) is   : 5.9785

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1974 1974

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	188.2901 	land 	CRU	25.13	7.49
msl 	  3.5845 	global 	COADS	11.69	0.30
qnet 	 20.4645 	ocean 	OAFLUX	14.24	1.43
tp 	 78.9305 	global 	CMAP	38.87	2.03
ewss 	  8.8656 	ocean 	DASILVA	4.03	2.19
nsss 	  5.9029 	ocean 	DASILVA	3.10	1.90
SST 	381.5176 	ocean 	GISS	17.21	22.16
SSS 	  0.3641 	ocean 	levitus	0.22	1.65
SICE 	 32.3508 	ocean 	GISS	0.34	95.14
T 	478.6419 	zonal 	ERA40	38.89	12.30
U 	  7.3506 	zonal 	ERA40	12.07	0.60
V 	  3.8761 	zonal 	ERA40	8.25	0.46
Q 	472.1647 	zonal 	ERA40	29.41	16.05

Total Performance Index is : 12.5923
Partial PI (atm only) is   : 5.6042