Background
~106-8 d.o.f.
Errors of the day: they lie
on the low-dim attractor
Observations
~105-7 d.o.f.
After the EnKF computes the analysis and
the analysis error covariance A, the new ensemble initial
perturbations are
computed:
These perturbations represent the
analysis error covariance and are
used as initial
perturbations for the
next ensemble forecast