Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1958 1958

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	252.1842 	land 	CRU	25.13	10.03
msl 	  3.5019 	global 	COADS	11.69	0.29
qnet 	 21.8495 	ocean 	OAFLUX	14.24	1.53
tp 	 68.6339 	global 	CMAP	38.87	1.76
ewss 	  8.4147 	ocean 	DASILVA	4.03	2.08
nsss 	  6.6324 	ocean 	DASILVA	3.10	2.13
SST 	369.8647 	ocean 	GISS	17.21	21.49
SSS 	  0.3390 	ocean 	levitus	0.22	1.54
SICE 	 55.4852 	ocean 	GISS	0.34	163.19
T 	464.8494 	zonal 	ERA40	38.89	11.95
U 	  8.2222 	zonal 	ERA40	12.07	0.68
V 	  3.9499 	zonal 	ERA40	8.25	0.47
Q 	446.4687 	zonal 	ERA40	29.41	15.18

Total Performance Index is : 17.8707
Partial PI (atm only) is   : 5.7657

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1958 1958

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	193.4873 	land 	CRU	25.13	7.69
msl 	  3.5019 	global 	COADS	11.69	0.29
qnet 	 20.7887 	ocean 	OAFLUX	14.24	1.45
tp 	 68.6339 	global 	CMAP	38.87	1.76
ewss 	  8.9626 	ocean 	DASILVA	4.03	2.22
nsss 	  5.9743 	ocean 	DASILVA	3.10	1.92
SST 	369.8647 	ocean 	GISS	17.21	21.49
SSS 	  0.3390 	ocean 	levitus	0.22	1.54
SICE 	 55.4852 	ocean 	GISS	0.34	163.19
T 	463.6698 	zonal 	ERA40	38.89	11.92
U 	  7.1676 	zonal 	ERA40	12.07	0.59
V 	  3.8577 	zonal 	ERA40	8.25	0.46
Q 	444.5477 	zonal 	ERA40	29.41	15.11

Total Performance Index is : 17.6638
Partial PI (atm only) is   : 5.4028