•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