¥ Forecasting the weather - we are really
getting betterÉ
¥ Why: Better obs? Better
models? Better data
assimilation?
¥ Intro to data assim: a toy example, we measure radiance and we want an accurate temperature
¥ Comparison of the toy and the real
equations
¥ An example from JMA comparing 4D-Var and LETKF (a type of Ensemble Kalman Filter)