Modeling Concepts - Coastal Lagoons: Ecosystem Processes and Modeling for Sustainable Use and Development - page 227

6

Modeling Concepts

Boris Chubarenko, Vladimir G. Koutitonsky,
Ramiro Neves, and Georg Umgiesser

CONTENTS

6.1 Introduction

6.2 Numerical Discretization Techniques

6.2.1 Computational Grid
6.2.2 Control Volume Approach
6.2.3 Numerical Calculation of Advection
6.2.3.1 Spatial Approach
6.2.3.1.1 Linear Approach
6.2.3.1.2 Upstream Stepwise Approach
6.2.3.1.3 Quadratic Upwind Approach (QUICK)
6.2.3.2 Temporal Approach
6.2.4 Taylor Series Approach
6.2.4.1 Time Discretization
6.2.4.2 Spatial Discretization
6.2.5 Stability and Accuracy
6.2.5.1

Introductory Example

6.2.5.2 Stability

6.2.5.3 The Need for a Fine Resolution Grid

6.3 Pre-Modeling Analysis and Model Selection

6.3.1 Hydrographic Classification
6.3.1.1 Morphometric Parameters
6.3.1.2 Hydrological Parameters
6.3.2 Description of Forcing Factors
6.3.2.1 General Hierarchy of Driving Forces
6.3.2.2 Water Budget Components
6.3.2.2.1 Surface Evaporation Budget
6.3.2.2.2 Ocean-Lagoon Exchange Budget
6.3.2.3 Heat Budget
6.3.3 Pre-Estimation of Spatial and Temporal Scales
6.3.3.1

Flushing Time
6.3.3.1.1 Integral Flushing Time

6.3.3.1.2 Local Flushing Time

6.3.3.2 Surface and Bottom Friction Layers

6.3.3.3 Time Scales of Current Adaptation