¥ Assume we have an object, a stone in space
¥ We want to estimate its temperature T
(oK)
accurately by measuring the radiance
y (W/m2)
that it emits. We have an observation
model:
¥ We also have a forecast model for the
temperature
¥ We will derive the data assim eqs (KF and Var) for this toy system (easy to understand!)
¥ Will compare the toy and the real
huge vector/matrix equations: they are the
same!