Tidal circulation, sediment and pollutant transport in Cadiz Bay (SW Spain): A modelling study

被引：27

作者：

Perianez, R. ^{[1
]}

Casas-Ruiz, M. ^{[2
]}

Bolivar, J. P. ^{[3
]}

机构：

[1] Univ Seville, ETSIA, Dpt Fis Aplicada 1, Seville 41013, Spain

[2] Univ Cadiz, Dpt Fis Aplicada, Cadiz 11510, Spain

[3] Univ Huelva, EPS Rabida, Dpt Fis Aplicada, Huelva 21819, Spain

来源：

OCEAN ENGINEERING | 2013年 / 69卷

关键词：

Cadiz Bay; Numerical modelling; Hydrodynamics; Sediment; Metals; Radionuclides; RESIDENCE TIME; CS-137; SEA; DISPERSION; BEHAVIOR; GULF; AREA; PU-239; PU-240; WATER;

D O I：

10.1016/j.oceaneng.2013.05.016

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

A numerical model to simulate the dispersion of particle-reactive tracers in Cadiz Bay (SW Spain) has been developed. It includes a hydrodynamic submodel to provide water currents, a sediment transport submodel, which provides suspended matter concentrations and sedimentation rates and the pollutant dispersion model. Pollutant exchanges between the liquid and solid phases are described in a dynamic way, using kinetic transfer coefficients. Results of the hydrodynamic and sediment transport models have been compared with observations. The contamination of sediments of the bay by fallout Cs-137 has been simulated. The existence of an accumulation area in the inner bay, found in field measurements, has been reproduced by the model. Dispersion experiments for Zn and Ra-226 have also been carried out. Flushing-times of the inner bay have been finally determined through numerical experiments. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：60 / 69

页数：10

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