From Szunyogh, Kostelich et al
T62, 28 levels (1.5 million d.o.f.)
The method is model independent: essentially the
same code was used for the L40 model as for the
NCEP global spectral model
Simulation with observations at every grid point
(1.5 million obs)
Very parallel! Each grid point analysis done
independently
Very fast! 20 minutes in a single 1GHz Intel
processor with 10 ensemble members