PowerPoint Presentation - COMPARISON OF ENSEMBLE-BASED AND VARIATIONAL-BASED DATA ASSIMILATION SCHEMES IN A QUASI-GEOSTROPHIC MODEL

MK method to estimate the inflation parameter (Miyoshi 2005, Miyoshi&Kalnay 2005)

Assumption: R is known

Should be satisfied if R, Pb and are correct (they are not!)

obs. increment in obs. space

So, at any given analysis time, and computing the inner product

(1)