Performance Indices - Reichler and Kim 2008 - CDO version
OLD VERSION: minor errors in the code
c370 2021 2021

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 17.4107 	land 	CRU	25.13	0.69
msl 	  2.2490 	global 	COADS	11.69	0.19
qnet 	 20.5028 	ocean 	OAFLUX	14.24	1.43
tp 	 40.9880 	global 	CMAP	38.87	1.05
ewss 	  9.9113 	ocean 	DASILVA	4.03	2.45
nsss 	  6.4456 	ocean 	DASILVA	3.10	2.07
SST 	 48.2572 	ocean 	GISS	17.21	2.80
SSS 	  0.1639 	ocean 	levitus	0.22	0.74
SICE 	1627.7274 	ocean 	GISS	0.34	4787.43
T 	 33.6321 	zonal 	ERA40	38.89	0.86
U 	  4.6514 	zonal 	ERA40	12.07	0.38
V 	  2.9841 	zonal 	ERA40	8.25	0.36
Q 	 31.5967 	zonal 	ERA40	29.41	1.07

Total Performance Index is : 369.3476
Partial PI (atm only) is   : 0.6571

Performance Indices - Reichler and Kim 2008 - CDO version
NEW VERSION: windstress, land-sea masks and 100hpa corrections
c370 2021 2021

Field 		PI 	Domain	Dataset	CMIP3	RatioCMIP3
t2m 	 13.2939 	land 	CRU	25.13	0.52
msl 	  2.2490 	global 	COADS	11.69	0.19
qnet 	 19.2981 	ocean 	OAFLUX	14.24	1.35
tp 	 40.9880 	global 	CMAP	38.87	1.05
ewss 	 10.2635 	ocean 	DASILVA	4.03	2.54
nsss 	  5.8449 	ocean 	DASILVA	3.10	1.88
SST 	 48.2572 	ocean 	GISS	17.21	2.80
SSS 	  0.1639 	ocean 	levitus	0.22	0.74
SICE 	1627.7274 	ocean 	GISS	0.34	4787.43
T 	 33.2738 	zonal 	ERA40	38.89	0.85
U 	  4.4991 	zonal 	ERA40	12.07	0.37
V 	  2.8949 	zonal 	ERA40	8.25	0.35
Q 	 26.8184 	zonal 	ERA40	29.41	0.91

Total Performance Index is : 369.3061
Partial PI (atm only) is   : 0.6057