You're dealing with an event with
a microburst that has a timescale on
the order of five minutes, so if you want
to design a system that responds to a
five minute event, you better
pair off some
minutes in communication.
So that means that you should have almost
instantaneous communications, I think
enhanced the loss and pilot training are
the keys to immediate, effective steps.
I would caution against trying to move
ahead with Doppler technology faster than
the technology can provide.