Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c4co 1950 1950

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	237.4412 	land 	CRU	25.13	9.44
msl 	  4.5191 	global 	COADS	11.69	0.38
qnet 	 21.4083 	ocean 	OAFLUX	14.24	1.50
tp 	 77.2653 	global 	CMAP	38.87	1.98
ewss 	  9.4039 	ocean 	DASILVA	4.03	2.33
nsss 	  6.6642 	ocean 	DASILVA	3.10	2.14
SST 	364.6658 	ocean 	GISS	17.21	21.18
SSS 	  0.3279 	ocean 	levitus	0.22	1.49
SICE 	 34.6682 	ocean 	GISS	0.34	101.96
T 	467.1685 	zonal 	ERA40	38.89	12.01
U 	  9.1818 	zonal 	ERA40	12.07	0.76
V 	  3.9240 	zonal 	ERA40	8.25	0.47
Q 	467.5608 	zonal 	ERA40	29.41	15.89

Total Performance Index is : 13.1946
Partial PI (atm only) is   : 5.8471

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c4co 1950 1950

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	185.1018 	land 	CRU	25.13	7.36
msl 	  4.5191 	global 	COADS	11.69	0.38
qnet 	 20.2702 	ocean 	OAFLUX	14.24	1.42
tp 	 77.2653 	global 	CMAP	38.87	1.98
ewss 	  9.8494 	ocean 	DASILVA	4.03	2.44
nsss 	  6.2485 	ocean 	DASILVA	3.10	2.01
SST 	364.6658 	ocean 	GISS	17.21	21.18
SSS 	  0.3279 	ocean 	levitus	0.22	1.49
SICE 	 34.6682 	ocean 	GISS	0.34	101.96
T 	466.1224 	zonal 	ERA40	38.89	11.98
U 	  7.9560 	zonal 	ERA40	12.07	0.65
V 	  3.8368 	zonal 	ERA40	8.25	0.46
Q 	465.4665 	zonal 	ERA40	29.41	15.82

Total Performance Index is : 13.0100
Partial PI (atm only) is   : 5.5185