Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1946 1946

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 17.1395 	land 	CRU	25.13	0.68
msl 	  2.7152 	global 	COADS	11.69	0.23
qnet 	 20.1183 	ocean 	OAFLUX	14.24	1.41
tp 	 32.6231 	global 	CMAP	38.87	0.83
ewss 	  8.1200 	ocean 	DASILVA	4.03	2.01
nsss 	  6.6418 	ocean 	DASILVA	3.10	2.14
SST 	 30.8424 	ocean 	GISS	17.21	1.79
SSS 	  0.1274 	ocean 	levitus	0.22	0.57
SICE 	2451.6019 	ocean 	GISS	0.34	7210.59
T 	 18.7964 	zonal 	ERA40	38.89	0.48
U 	  3.2483 	zonal 	ERA40	12.07	0.26
V 	  2.5732 	zonal 	ERA40	8.25	0.31
Q 	 23.8060 	zonal 	ERA40	29.41	0.80

Total Performance Index is : 555.5461
Partial PI (atm only) is   : 0.5128

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1946 1946

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 15.4123 	land 	CRU	25.13	0.61
msl 	  2.7152 	global 	COADS	11.69	0.23
qnet 	 18.9696 	ocean 	OAFLUX	14.24	1.33
tp 	 32.6231 	global 	CMAP	38.87	0.83
ewss 	  8.1762 	ocean 	DASILVA	4.03	2.02
nsss 	  5.8058 	ocean 	DASILVA	3.10	1.87
SST 	 30.8424 	ocean 	GISS	17.21	1.79
SSS 	  0.1274 	ocean 	levitus	0.22	0.57
SICE 	2451.6019 	ocean 	GISS	0.34	7210.59
T 	 17.1545 	zonal 	ERA40	38.89	0.44
U 	  3.0619 	zonal 	ERA40	12.07	0.25
V 	  2.4585 	zonal 	ERA40	8.25	0.29
Q 	 17.0651 	zonal 	ERA40	29.41	0.58

Total Performance Index is : 555.4923
Partial PI (atm only) is   : 0.4614