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Parameter Estimation for a 2D Tidal Model with POD 4D VAR Data Assimilation
Joint Authors
Qian, Shouguo
Cao, Yanhua
Shao, Fenjing
Lv, Xianqing
Source
Mathematical Problems in Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-01-20
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Combining the proper orthogonal decomposition (POD) reduced order method and 4D VAR (four-dimensional Variational) data assimilation method with a two-dimensional (2D) tidal model, a model is constructed to simulate the M 2 tide in the Bohai, Yellow, and East China Seas (BYECS).
This model consists of two submodels: the POD reduced order forward model is used to simulate the tides, while its adjoint model is used to optimize the control variables.
Numerical experiment is carried out to assimilate the harmonic constants, which are derived from TOPEX/Poseidon ( T / P ) altimeter data, into the 2D tidal model through optimizing the initial values and the temporally and spatially varying open boundary conditions (OBCs).
The absolute mean difference between the model results and observations is 3.2 cm and 2.9∘ for amplitude and phase-lag, respectively, better than the results of Lu and Zhang (2006), suggesting that the construction of the POD reduced order model and the inversion of control variables are successful.
American Psychological Association (APA)
Qian, Shouguo& Lv, Xianqing& Cao, Yanhua& Shao, Fenjing. 2016. Parameter Estimation for a 2D Tidal Model with POD 4D VAR Data Assimilation. Mathematical Problems in Engineering،Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1112490
Modern Language Association (MLA)
Qian, Shouguo…[et al.]. Parameter Estimation for a 2D Tidal Model with POD 4D VAR Data Assimilation. Mathematical Problems in Engineering No. 2016 (2016), pp.1-14.
https://search.emarefa.net/detail/BIM-1112490
American Medical Association (AMA)
Qian, Shouguo& Lv, Xianqing& Cao, Yanhua& Shao, Fenjing. Parameter Estimation for a 2D Tidal Model with POD 4D VAR Data Assimilation. Mathematical Problems in Engineering. 2016. Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1112490
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1112490