A statistical-process based approach for modelling beach profile variability

被引：83

作者：

Pender, Doug ^{[1
]}

Karunarathna, Harshinie ^{[2
]}

机构：

[1] Univ Glasgow, Sch Engn, Glasgow G12 8LT, Lanark, Scotland

[2] Univ Coll Swansea, Coll Engn, Swansea SA2 8PP, W Glam, Wales

来源：

COASTAL ENGINEERING | 2013年 / 81卷

基金：

英国工程与自然科学研究理事会;

关键词：

Storm erosion; Extreme storm statistics; XBeach; Beach erosion and accretion; Beach profile morphodynamics; Narrabeen Beach; WAVE CLIMATE; SEDIMENT TRANSPORT; UNIFIED VIEW; SURF ZONES; CURRENTS; SCALE; OSCILLATION; EVOLUTION; EROSION;

D O I：

10.1016/j.coastaleng.2013.06.006

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents a methodology for modelling medium term (annual to decadal) cross shore beach profile change and erosion. The statistical-process based approach (SPA) presented here combines detailed statistical modelling of offshore storm climate with a process based morphodynamic model (XBeach), to assess, and quantify morphodynamic variability of cross shore beach profiles. Until now, the use of process based models has been limited to simulations at storm event timescales. This methodology therefore represents the first application of a fully process based model in longer term simulations, as such, the approach requires simulation of post-storm beach profile recovery as well as individual event impacts. Narrabeen Beach, NSW, Australia was used as a case study for application of the technique due to the availability of an extensive set of storm and beach profile data. The results presented here demonstrate that the methodology produces encouraging results for determining medium term beach profile variability and erosion. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：19 / 29

页数：11

共 52 条

[11]

Grasso F., 2011, J GEOPHYS RES, V116, P1

[12] A reevaluation of coastal embayment rotation: The dominance of cross-shore versus alongshore sediment transport processes, Collaroy-Narrabeen Beach, southeast Australia [J].

Harley, M. D. ;

Turner, I. L. ;

Short, A. D. ;

Ranasinghe, R. .

JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE, 2011, 116

[13]

Harley M.D., 2009, P 19 AUSTR C COAST O

[14] Assessment and integration of conventional, RTK-GPS and image-derived beach survey methods for daily to decadal coastal monitoring [J].

Harley, Mitchell D. ;

Turner, Ian L. ;

Short, Andrew D. ;

Ranasinghe, Roshanka .

COASTAL ENGINEERING, 2011, 58 (02) :194-205

[15] Interannual variability and controls of the Sydney wave climate [J].

Harley, Mitchell D. ;

Turner, Ian L. ;

Short, Andrew D. ;

Ranasinghe, Roshanka .

INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2010, 30 (09) :1322-1335

[16]

Hawkes P.J., 2000, 71 TR HR WALL

[17] The joint probability of waves and water levels in coastal engineering design [J].

Hawkes, PJ ;

Gouldby, BR ;

Tawn, JA ;

Owen, MW .

JOURNAL OF HYDRAULIC RESEARCH, 2002, 40 (03) :241-251

[18]

Hoffman J., 1987, 87040 PWD NSW COAST

[19]

Jamal M.H., 2010, P 32 INT C COAST ENG

[20] Berm formation and dynamics on a gently sloping beach; the effect of water level and swash overtopping [J].

Jensen, Stine G. ;

Aagaard, Troels ;

Baldock, Tom E. ;

Kroon, Aart ;

Hughes, Michael .

EARTH SURFACE PROCESSES AND LANDFORMS, 2009, 34 (11) :1533-1546

← 1 2 3 4 5 6 →