An idealised experimental model of ocean surface wave transmission by an ice floe

被引：57
作者：
Bennetts, L. G. [1 ]
Alberello, A. [2 ]
Meylan, M. H. [3 ]
Cavaliere, C. [4 ]
Babanin, A. V. [2 ]
Toffoli, A. [2 ]
机构：
[1] Univ Adelaide, Sch Math Sci, Adelaide, SA 5005, Australia
[2] Swinburne Univ Technol, Ctr Ocean Engn Sci & Technol, Hawthorn, Vic 3122, Australia
[3] Univ Newcastle, Sch Math & Phys Sci, Callaghan, NSW 2308, Australia
[4] Politecn Milan, I-20133 Milan, Italy
来源：
OCEAN MODELLING | 2015年 / 96卷
基金：
澳大利亚研究理事会;
关键词：
Ocean waves; Sea ice; Marine geophysics; FLOATING ELASTIC DISCS; SEA-ICE; HYDROELASTIC RESPONSE; GRAVITY-WAVES; ATTENUATION; COLLISIONS; TRANSECTS; PROPAGATION; ZONE;
D O I：
10.1016/j.ocemod.2015.03.001
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
An experimental model of transmission of ocean waves by an ice floe is presented. Thin plastic plates with different material properties and thicknesses are used to model the floe. Regular incident waves with different periods and steepnesses are used, ranging from gently sloping to storm like conditions. A wave gauge is used to measure the water surface elevation in the lee of the floe. The depth of wave overwash on the floe is measured by a gauge in the centre of the floe's upper surface. Results show transmitted waves are regular for gently-sloping incident waves but irregular for storm-like incident waves. The proportion of the incident wave transmitted is shown to decrease as incident wave steepness increases, and to be at its minimum for an incident wavelength equal to the floe length. Further, a trend is noted for transmission to decrease as the mean wave height in the overwash region increases. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：85 / 92
页数：8
相关论文
共 36 条
  • [1] Model sensitivity analysis of scattering-induced attenuation of ice-coupled waves
    Bennetts, L. G.
    Squire, V. A.
    [J]. OCEAN MODELLING, 2012, 45-46 : 1 - 13
  • [2] A three-dimensional model of wave attenuation in the marginal ice zone
    Bennetts, L. G.
    Peter, M. A.
    Squire, V. A.
    Meylan, M. H.
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 2010, 115
  • [3] Wave scattering by ice floes and polynyas of arbitrary shape
    Bennetts, L. G.
    Williams, T. D.
    [J]. JOURNAL OF FLUID MECHANICS, 2010, 662 : 5 - 35
  • [4] On the calculation of an attenuation coefficient for transects of ice-covered ocean
    Bennetts, Luke G.
    Squire, Vernon A.
    [J]. PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2012, 468 (2137): : 136 - 162
  • [5] NONLINEAR FORCES ON A HORIZONTAL CYLINDER BENEATH WAVES
    CHAPLIN, JR
    [J]. JOURNAL OF FLUID MECHANICS, 1984, 147 (OCT) : 449 - 464
  • [6] Dispersion and attenuation of gravity waves in ice: a two-layer viscous fluid model with experimental data validation
    De Carolis, G
    Desiderio, D
    [J]. PHYSICS LETTERS A, 2002, 305 (06) : 399 - 412
  • [7] Wave buoy measurements at the Antarctic sea ice edge compared with an enhanced ECMWF WAM: Progress towards global waves-in-ice modelling
    Doble, Martin J.
    Bidlot, Jean-Raymond
    [J]. OCEAN MODELLING, 2013, 70 : 166 - 173
  • [8] Wave-induced drift of small floating objects in regular waves
    Huang, Guoxing
    Law, Adrian Wing-Keung
    Huang, Zhenhua
    [J]. OCEAN ENGINEERING, 2011, 38 (04) : 712 - 718
  • [9] Gravity waves on ice-covered water
    Keller, JB
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1998, 103 (C4): : 7663 - 7669
  • [10] Linear water wave propagation through multiple floating elastic plates of variable properties
    Kohout, A. L.
    Meylan, M. H.
    Sakai, S.
    Hanai, K.
    Leman, P.
    Brossard, D.
    [J]. JOURNAL OF FLUIDS AND STRUCTURES, 2007, 23 (04) : 649 - 663
1234