Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1945 1945

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 23.4320 	land 	CRU	25.13	0.93
msl 	  2.6109 	global 	COADS	11.69	0.22
qnet 	 20.4494 	ocean 	OAFLUX	14.24	1.43
tp 	 47.0629 	global 	CMAP	38.87	1.21
ewss 	  8.1742 	ocean 	DASILVA	4.03	2.02
nsss 	  5.5095 	ocean 	DASILVA	3.10	1.77
SST 	 29.2444 	ocean 	GISS	17.21	1.69
SSS 	  0.1406 	ocean 	levitus	0.22	0.63
SICE 	2506.3129 	ocean 	GISS	0.34	7371.50
T 	 22.7590 	zonal 	ERA40	38.89	0.58
U 	  3.4810 	zonal 	ERA40	12.07	0.28
V 	  2.3664 	zonal 	ERA40	8.25	0.28
Q 	 30.9406 	zonal 	ERA40	29.41	1.05

Total Performance Index is : 567.9684
Partial PI (atm only) is   : 0.6500

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1945 1945

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 21.5975 	land 	CRU	25.13	0.85
msl 	  2.6109 	global 	COADS	11.69	0.22
qnet 	 19.2399 	ocean 	OAFLUX	14.24	1.35
tp 	 47.0629 	global 	CMAP	38.87	1.21
ewss 	  8.3788 	ocean 	DASILVA	4.03	2.07
nsss 	  5.3309 	ocean 	DASILVA	3.10	1.71
SST 	 29.2444 	ocean 	GISS	17.21	1.69
SSS 	  0.1406 	ocean 	levitus	0.22	0.63
SICE 	2506.3129 	ocean 	GISS	0.34	7371.50
T 	 21.1021 	zonal 	ERA40	38.89	0.54
U 	  3.1223 	zonal 	ERA40	12.07	0.25
V 	  2.2413 	zonal 	ERA40	8.25	0.27
Q 	 23.9115 	zonal 	ERA40	29.41	0.81

Total Performance Index is : 567.9307
Partial PI (atm only) is   : 0.5928