Storm surge variational assimilation model

Shi-li HUANG; Jian XU; De-guan WANG; Dong-yan LU

doi:10.3882/j.issn.1674-2370.2010.02.005

Volume 3 Issue 2

Jun. 2010

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Article Navigation > Water Science and Engineering > 2010 > 3(2): 166-173

Shi-li HUANG, Jian XU, De-guan WANG, Dong-yan LU. 2010: Storm surge variational assimilation model. Water Science and Engineering, 3(2): 166-173. doi: 10.3882/j.issn.1674-2370.2010.02.005

Citation:

Shi-li HUANG, Jian XU, De-guan WANG, Dong-yan LU. 2010: Storm surge variational assimilation model. Water Science and Engineering, 3(2): 166-173. doi: 10.3882/j.issn.1674-2370.2010.02.005

Shi-li HUANG, Jian XU, De-guan WANG, Dong-yan LU. 2010: Storm surge variational assimilation model. Water Science and Engineering, 3(2): 166-173. doi: 10.3882/j.issn.1674-2370.2010.02.005

Citation:

Shi-li HUANG, Jian XU, De-guan WANG, Dong-yan LU. 2010: Storm surge variational assimilation model. Water Science and Engineering, 3(2): 166-173. doi: 10.3882/j.issn.1674-2370.2010.02.005

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Storm surge variational assimilation model

doi: 10.3882/j.issn.1674-2370.2010.02.005

1.
College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P. R. China
2.
Shanghai Water Authority, Shanghai 200232, P. R. China
3.
Shanghai Water Planning and Design Research Institute, Shanghai 200232, P. R. China
4.
College of Environmental Science and Engineering, Hohai University, Nanjing 210098, P. R. China

Received Date: 2010-04-29
Rev Recd Date: 2010-06-25

Abstract

Abstract

To eliminate errors caused by uncertainty of parameters and further improve capability of storm surge forecasting, the variational data assimilation method is applied to the storm surge model based on unstructured grid with high spatial resolution. The method can effectively improve the forecasting accuracy of storm surge induced by typhoon through controlling wind drag force coefficient parameter. The model is first theoretically validated with synthetic data. Then, the real storm surge process induced by the TC 0515 typhoon is forecasted by the variational data assimilation model, and results show the feasibility of practical application.
- storm surge,
- variational data assimilation,
- synthetic data,
- unstructured grid