Figure 2
From: A new CAM6 + DART reanalysis with surface forcing from CAM6 to other CESM models
An illustration of the major parts of this ensemble data assimilation system. The red arrows highlight the core of the assimilation cycle. Black arrows indicate other data motion. “RDA” is the Research Data Archive. A cycle starts with a 6 h, ensemble hindcast, which passes an ensemble of model states to DART. DART assimilates the available observations into this prior ensemble. The resulting modified, posterior, model states are used by the hindcast model as initial conditions for the next hindcast. A flowchart of “Observation Space Diagnostics” (lower left box) is shown in Fig. 6.
