Observability and Stochastic Optimals (SOs)
Entire forcing space Dimension ~ 105

For T~10-90 days, 1st Stochastic Optimal
 accounts for ~65% of variance
Forcing
subspace 1
Forcing
subspace 2
Covariance
at t=0
Forcing
subspace 1
Forcing
subspace 2
Covariance
at t=T