Forecast Error Correction using Dynamic Data Assimilation
| Autor: | Jabrzemski, Rafal Lakshmivarahan, Sivaramakrishnan Lewis, John M. |
|---|---|
| EAN: | 9783319399959 |
| Auflage: | 001 |
| Sachgruppe: | Informatik, EDV |
| Sprache: | Englisch |
| Seitenzahl: | 288 |
| Produktart: | Gebunden |
| Veröffentlichungsdatum: | 02.11.2016 |
| Schlagworte: | Data Mining (EDV) Erde (Planet) / Geologie Geologie Modellieren (allgemein) - Modellierung |
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This book introduces the reader to a new method of data assimilation with deterministic constraints (exact satisfaction of dynamic constraints)¿an optimal assimilation strategy called Forecast Sensitivity Method (FSM), as an alternative to the well-known four-dimensional variational (4D-Var) data assimilation method. 4D-Var works with a forward in time prediction model and a backward in time tangent linear model (TLM). The equivalence of data assimilation via 4D-Var and FSM is proven and problems using low-order dynamics clarify the process of data assimilation by the two methods. The problem of return flow over the Gulf of Mexico that includes upper-air observations and realistic dynamical constraints gives the reader a good idea of how the FSM can be implemented in a real-world situation.
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