期刊
COASTAL ENGINEERING
卷 82, 期 -, 页码 102-113出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.coastaleng.2013.08.009
关键词
Tide-surge-wave modelling; Shallow water; Wind waves; POLCOMS-WAM; Radiation stress; Wave setup; Liverpool Bay
资金
- MICORE (EU FP7 programme grant) [202798]
- FORMOST (NERC grant) [NE/E015026/1]
- FIELD_AC (EU FP7 programme grant) [242284]
- iCOASST (NERC grant) [NE/J005444/1]
- ARCoES (EPSRC) [EP/I035390/1]
- ARCoES (ARCC-CN) [EP/I035390/1]
- European Commission [288710 - MERMAID]
- EPSRC [EP/I035390/1] Funding Source: UKRI
- NERC [NE/J005541/1, NE/E015026/1, NE/E015123/1, noc010010] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/I035390/1] Funding Source: researchfish
- Natural Environment Research Council [noc010012, NE/J005541/1, noc010010, NE/E015123/1] Funding Source: researchfish
During storm events wave setup in shallow regions can contribute significantly to the total water elevation, and radiation stress can also generate alongshore drift influencing sediment transport In low lying coastal regions this generates the potential for flood inundation and morphological change. A coupled tide-surge-wave modelling system is therefore required for accurate forecasting. Liverpool Bay, UK, is taken as a case study because it has a resource of observations and incorporates three estuaries, thus providing conditions to assess the model performance both at the open coast and within estuarine environments. The model covers a region encompassing depths from about 50 m below the mean tidal level to shallow wetting and drying regions, and has previously given good wave and surge hindcasts both for individual storm events and multi-year studies. The present study builds on an already accepted model, to include and assess the spatial influence of 2D radiation stress when implemented in a 3D circulation model. The results show that the method is computationally efficient, so relevant for operational use, and also provides a plausible solution. The varied influence of radiation stress across a coastal domain is demonstrated, with larger impact at an estuary mouth and along the open coast, while having lesser impact within an estuary and further offshore. (C) 2013 Elsevier B.V. All rights reserved.
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