The Sentinel Method and Its Application to Environmental Pollution Problems: 1st Edition (Hardback) book cover

The Sentinel Method and Its Application to Environmental Pollution Problems

1st Edition

By J.P. Kernevez

CRC Press

224 pages

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Hardback: 9780849396304
pub: 1997-01-24
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Many environmental problems contain incomplete data in the initial or boundary conditions. How do we solve problems for which some of the initial and/or boundary conditions are unknown? Using a new technique, the sentinel method, this book answers these questions and others as they pertain to inverse problems in environmental pollution, such as pollution of underground and surface waters, thermal pollution, and air pollution.

Table of Contents


Physical Motivation

Historical Background

Description of the Method

Identification of Pollution in an Aquifer

Modelling of Pollution Transport in an Aquifer

A Sentinel Attached to Each Parameter

Some Examples of Similar Problems

Flow Rate

Numerical Experiments

Sentinels and Pseudo-Inverse

Identification of Pollution in a Lake

Pollution of a Lake


Numerical Experiment

Adjoint State

Numerical Details

HUM Method

Time and Space Discretization

Optimal Emplacement of Sensors

Rectangular Domain

Physical Motivations

Modelling the Physical System

Exact Solution of the Direct Problem

Sentinels for Inversion

Direct Method

Numerical Experiments

Sensitivity to the Size of the Observatory

Sentinels in a River

Oxygen Kinetics and Polluted Water

Convection-Dispersion-Reaction Equation

Exact Solution of the State Equation

Sentinels for a River (Evolution Regime)

Numerical Experiments

Our First Nonlinear Problem

Linear Case

Non-Linear Case

Non-Linear Problems

Position of the Problem

Sentinels of the Linearized Problem

Building the Generalized Inverse


Dispersion Coefficients


Linearized System

Linearized System Sentinels

Non-Linear Problem

Numerical Results

Position of a Source

Position of the Problem


Sentinels of the Linearized Problem

Non-Linear Problem

Numerical Experiments

Unknown Position and Flow Rate

Sentinels of the Linearized Problem (1)

Sentinels of the Linearized Problem (2)

Moving Source



Inverse Problems

A Convergence Result

Gauss-Newton Method

Shallow Waters

The Movement of Tides: Saint-Venant Shallow Water Equations

Numerical Solution of Shallow Water Equations

Weak Formulation of the Problem

Reaction-Convection-Dispersion Equations



Sentinels with a Given Sensibility and Duality


Existence of a Solution and Functional Spaces


About the Series

Mathematical Modeling

Learn more…

Subject Categories

BISAC Subject Codes/Headings:
NATURE / Environmental Conservation & Protection
SCIENCE / Environmental Science