Difference between revisions of "Template:This weeks featured article"

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==Time scales for pollution assessment==
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==How to apply models==
  
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'''Time scales for pollution assessment''' can be considered using three commonly used methods: [[Flushing Time|flushing time]], [[residence time]] and age.  In this article the methodologies and tools to quantify each of these methods is explained as well as the applicability of each method.
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[[Image:how to apply models schematic_5.jpg|thumb|right|230px]]
  
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Transport time scales are useful tools to quantify the importance of hydrodynamic processes in the transport and fate of [[pollutant|pollutants]] in coastal and estuarine water systems. Indeed, the water quality of a system depends crucially on the retention of [[pollutant|pollutants]] within the system and its ability to flush them out. Transport time scales are often compared with the [[pollutant]] source time scales or biogeochemical processes to evaluate the relative importance of physical and water quality processes. <ref name="Monsen">Monsen N.E., Cloern J.E. and Lucas L.V (2002). A comment on the use of flushing time, residence time, and age as transport time scales. ''Limnology and Oceanography'', '''47'''(5) 1545-1553.</ref> <ref name="Salomon">Salomon J.C. and Pomepuy M. (1990). Mathematical modeling of bacterial contaminationof the Morlaix estuary (France). ''Water Research'' '''24(8)''' 983-994.</ref> They are also used to understand population dynamics <ref name="Monsen">Monsen N.E., Cloern J.E. and Lucas L.V (2002). A comment on the use of flushing time, residence time, and age as transport time scales. ''Limnology and Oceanography'', '''47'''(5) 1545-1553.</ref> and to serve as indicators to classify and compare estuarine systems.<ref name="Jay:>Jay D. (1994). ''Residence times, box models and shear fluxes in tidal channel flows, Changes in Fluxes in Estuaries'', Dyer and Orth (eds.), 3-12, Olsen and Olsen, Fredensborg, Denmark.</ref>
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Numerical models have reached a level of accuracy and detail over the past 25 years that most of the dominant processes in the coastal environment can be quantified. However, the numerical models are tools only for the coastal engineers and planners. This article on ''How to apply models'' will discuss the optimal use of the modelling tools at various stages of a coastal development project. Further, examples are given of projects where proper analysis and modelling have formed the basis for successful coastal projects.  
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==Introduction==
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The description in this article will concentrate on development of high quality and safe artificial beaches, as these are often one of the most important assets of coastal development schemes. It is recommended that the planning of a coastal development scheme includes the following coastal engineering disciplines:  
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*Baseline studies
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*Development of alternative schemes
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*Detailed design and environmental optimization

Revision as of 13:02, 10 March 2008

How to apply models

How to apply models schematic 5.jpg


Numerical models have reached a level of accuracy and detail over the past 25 years that most of the dominant processes in the coastal environment can be quantified. However, the numerical models are tools only for the coastal engineers and planners. This article on How to apply models will discuss the optimal use of the modelling tools at various stages of a coastal development project. Further, examples are given of projects where proper analysis and modelling have formed the basis for successful coastal projects.

Introduction

The description in this article will concentrate on development of high quality and safe artificial beaches, as these are often one of the most important assets of coastal development schemes. It is recommended that the planning of a coastal development scheme includes the following coastal engineering disciplines:

  • Baseline studies
  • Development of alternative schemes
  • Detailed design and environmental optimization
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