Joint ECMWF/OceanPredict workshop on Advances in Ocean Data Assimilation

We present an ocean smoother designed for data adjustments in real reanalysis products, by utilizing knowledge of future increments. By using increments, rather than innovations as a true Kalman smoother would use, considerable simplification is obtained. A decay time parameter which also has 3-D spatial variations is applied to the smoother increments to account for memory decay timescales in...

Going from low- to high-resolution models is an efficient way to improve the data assimilation process in three ways: it makes better use of high-resolution observations, it represents more accurately the small scale features of the dynamics and it provides a high-resolution field that can further be used as an initial condition of a forecast. Of course, the pitfall of such an approach is the...