The DAO Retrospective Data Assimilation System

  title={The DAO Retrospective Data Assimilation System},
  author={Richardo Todling and Yanqiu Zhu and Franco Einaudi},
The fixed-lag Kalman smoother of Cohn et al. (1994), or a version of a more computationally feasible approximation of it developed by Todling et al. (1998), is under implementation at the Data Assimilation Office (DAO) to build a retrospective data assimilation system (RDAS). The initial version of the RDAS uses the physical-space statistical analysis system and a modification of the incremental analysis update (IAU) procedure of Bloom et al. (1996); a follow up version of the RDAS Nill require… CONTINUE READING

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