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

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 26.7995 	land 	CRU	25.13	1.06
msl 	  3.0767 	global 	COADS	11.69	0.26
qnet 	 20.7343 	ocean 	OAFLUX	14.24	1.45
tp 	 34.2294 	global 	CMAP	38.87	0.88
ewss 	  8.9088 	ocean 	DASILVA	4.03	2.21
nsss 	  5.6417 	ocean 	DASILVA	3.10	1.81
SST 	 29.5745 	ocean 	GISS	17.21	1.71
SSS 	  0.1553 	ocean 	levitus	0.22	0.70
SICE 	2806.4609 	ocean 	GISS	0.34	8254.29
T 	 23.2169 	zonal 	ERA40	38.89	0.59
U 	  5.2467 	zonal 	ERA40	12.07	0.43
V 	  2.8673 	zonal 	ERA40	8.25	0.34
Q 	 31.7324 	zonal 	ERA40	29.41	1.07

Total Performance Index is : 635.9076
Partial PI (atm only) is   : 0.6614

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

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 24.8395 	land 	CRU	25.13	0.98
msl 	  3.0767 	global 	COADS	11.69	0.26
qnet 	 19.5277 	ocean 	OAFLUX	14.24	1.37
tp 	 34.2294 	global 	CMAP	38.87	0.88
ewss 	  8.6456 	ocean 	DASILVA	4.03	2.14
nsss 	  5.3758 	ocean 	DASILVA	3.10	1.73
SST 	 29.5745 	ocean 	GISS	17.21	1.71
SSS 	  0.1553 	ocean 	levitus	0.22	0.70
SICE 	2806.4609 	ocean 	GISS	0.34	8254.29
T 	 21.4160 	zonal 	ERA40	38.89	0.55
U 	  4.9280 	zonal 	ERA40	12.07	0.40
V 	  2.7195 	zonal 	ERA40	8.25	0.32
Q 	 24.9225 	zonal 	ERA40	29.41	0.84

Total Performance Index is : 635.8592
Partial PI (atm only) is   : 0.6042