A stereoscopic method for rapid monitoring of the spatio-temporal evolution of the sand-bed elevation in the swash zone

被引：16

作者：

Astruc, D. ^{[1
,2
,3
,4
]}

Cazin, S. ^{[1
,2
,3
,4
]}

Cid, E. ^{[1
,2
,3
,4
]}

Eiff, O. ^{[1
,2
,3
,4
]}

Lacaze, L. ^{[1
,2
,3
,4
]}

Robin, P. ^{[1
,2
,3
,4
]}

Toublanc, F. ^{[1
,2
,3
,4
]}

Caceres, I. ^{[5
]}

机构：

[1] Univ Toulouse, F-31400 Toulouse, France

[2] UPS, INPT, F-31400 Toulouse, France

[3] IMFT, F-31400 Toulouse, France

[4] CNRS, F-31400 Toulouse, France

[5] Univ Politecn Cataluna, Lab Engn Maritima, Barcelona 03034, Spain

来源：

COASTAL ENGINEERING | 2012年 / 60卷

关键词：

Swash zone; Stereovision; Morphodynamics; Bed evolution; SEDIMENT TRANSPORT; HYDRODYNAMICS; TOPOGRAPHY; TURBULENCE;

D O I：

10.1016/j.coastaleng.2011.08.007

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A stereoscopic technique is developed in order to measure the sand-bed elevation in the swash zone at the wave time-scale. The present technique allows one to perform highly resolved measurements both in time and in space. An accuracy and a precision of less than 300 mu m and 600 mu m, respectively, are obtained in each direction. This technique has been used during a large-scale wave flume experiment where an erosive process of a plane beach is studied. The stereoscopic technique allows one to accurately measure the long-term evolution of the beach profile. In addition, spatially dependent variability on shorten time-scales is observed featuring accretion as well as erosion at the wave time-scale. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：11 / 20

页数：10

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