沿海地区输沙率测定的不确定性

Q4 Environmental Science

Archives of Hydroengineering and Environmental Mechanics Pub Date : 2016-12-01 DOI:10.1515/heem-2016-0017

R. Ostrowski

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引用次数: 3

摘要

本文讨论了与海岸岩石动力学物理现象建模有关的研究不确定性、困难、不准确性和不可靠性。考虑的重点是波的转换过程，波浪驱动的潮流和泥沙本身的输运。结果表明，在沿海水动力模拟的各个阶段可能出现的不准确会导致模拟的最终输出，即河床剪切应力和沉积物输运率方面的严重不确定性。这些不准确性主要是由于任意假设的参数和常数造成的。文中讨论的其他建模偏差包括关于沉积物资源和大小分级特性的简化和近似，水动力影响的随机性，底部粗糙度和海岸岩石动力学中涉及的陆地因素。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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On Uncertainties in Determination of Sediment Transport Rates in Coastal Regions

Abstract The paper deals with research uncertainties, difficulties, inaccuracies and unreliabilities related to the modelling of physical phenomena involving coastal lithodynamics. The considerations are focused on processes of wave transformation, wave-driven currents and sediment transport itself. It is shown that possible inaccuracies at individual stages of the modelling of coastal hydrodynamics can lead to serious uncertainties with respect to the ultimate modelling output, namely bed shear stresses and sediment transport rates. These inaccuracies result mostly from arbitrarily assumed parameters and constants. Other modelling biases discussed in the paper comprise simplifications and approximations with respect to sediment resources and size-graded properties, randomness of hydrodynamic impacts, bottom roughness and land-borne factors involved in coastal lithodynamics.

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来源期刊

Archives of Hydroengineering and Environmental Mechanics Environmental Science-Water Science and Technology

CiteScore

1.30

自引率

0.00%

发文量

期刊介绍： Archives of Hydro-Engineering and Environmental Mechanics cover the broad area of disciplines related to hydro-engineering, including: hydrodynamics and hydraulics of inlands and sea waters, hydrology, hydroelasticity, ground-water hydraulics, water contamination, coastal engineering, geotechnical engineering, geomechanics, structural mechanics, etc. The main objective of Archives of Hydro-Engineering and Environmental Mechanics is to provide an up-to-date reference to the engineers and scientists engaged in the applications of mechanics to the analysis of various phenomena appearing in the natural environment.