Water Quality Modelling In Tidal Wetlands
Considering Flooding And Drying Processes
Author(s)
M. L. C. Barros, P. C. C. Rosman & J. C. F. Telles
Abstract
Tidal wetlands are among the most important natural ecosystems and they play a
variety of ecological functions. They are generally maintained by a flooding and
drying tidal related cycle. Such cycles play an essential role in exchanging
material over the estuarine and mangrove swamp complex. Therefore, the
capacity to forecast the hydrodynamic processes and the water quality in such
systems is required for the proper management of their environmental resources.
In this paper, a water quality model applied to areas with flooding and drying
processes is presented. The hydrodynamics is considered by using a 2DH model
including a novel technique to represent the flooding and drying that considers
flows through a \“rough-porous medium” of the bed, called RPL (rough-porous
layer). This technique bears similarities to the so-called marsh porosity method.
The kinetic reaction processes of the water quality model were modified to
include flooding and drying effects. In the model, the spatial and temporal
variations of water quality variables are caused by physical–biological–chemical
interactions under tidal mixing environment. The effectiveness of the water
quality method coupled to the hydrodynamic model with flooding and drying is
evaluated by modeling the complex Vitória Bay (Brazil) comprising extensive
mangrove swamps.
Keywords: tidal wetland, flooding and drying processes, water quality.
Keywords
Keywords: tidal wetland, flooding and drying processes, water quality.
Related Book
Other papers in this volume
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