Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
chis 1870 1870

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 29.4874 	land 	CRU	25.13	1.17
msl 	  2.1582 	global 	COADS	11.69	0.18
qnet 	 20.8744 	ocean 	OAFLUX	14.24	1.46
tp 	 33.7164 	global 	CMAP	38.87	0.86
ewss 	  8.5867 	ocean 	DASILVA	4.03	2.13
nsss 	  5.7023 	ocean 	DASILVA	3.10	1.83
SST 	 26.5529 	ocean 	GISS	17.21	1.54
SSS 	  0.1592 	ocean 	levitus	0.22	0.72
SICE 	2925.4602 	ocean 	GISS	0.34	8604.29
T 	 25.2982 	zonal 	ERA40	38.89	0.65
U 	  3.4716 	zonal 	ERA40	12.07	0.28
V 	  2.3582 	zonal 	ERA40	8.25	0.28
Q 	 33.0215 	zonal 	ERA40	29.41	1.12

Total Performance Index is : 662.8084
Partial PI (atm only) is   : 0.6485

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
chis 1870 1870

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 27.9292 	land 	CRU	25.13	1.11
msl 	  2.1582 	global 	COADS	11.69	0.18
qnet 	 19.7204 	ocean 	OAFLUX	14.24	1.38
tp 	 33.7164 	global 	CMAP	38.87	0.86
ewss 	  8.8804 	ocean 	DASILVA	4.03	2.20
nsss 	  5.1529 	ocean 	DASILVA	3.10	1.66
SST 	 26.5529 	ocean 	GISS	17.21	1.54
SSS 	  0.1592 	ocean 	levitus	0.22	0.72
SICE 	2925.4602 	ocean 	GISS	0.34	8604.29
T 	 22.9688 	zonal 	ERA40	38.89	0.59
U 	  3.1139 	zonal 	ERA40	12.07	0.25
V 	  2.2177 	zonal 	ERA40	8.25	0.26
Q 	 25.4444 	zonal 	ERA40	29.41	0.86

Total Performance Index is : 662.7615
Partial PI (atm only) is   : 0.5871