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Salinity and Tides in Alluvial Estuaries - 1st Edition - ISBN: 9780444521071, 9780080461618

Salinity and Tides in Alluvial Estuaries

1st Edition

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Author: H.H.G. Savenije
eBook ISBN: 9780080461618
eBook ISBN: 9780080931241
Imprint: Elsevier Science
Published Date: 16th December 2005
Page Count: 208
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The book describes an integrated theory that links estuary shape to tidal hydraulics, tidal mixing and salt intrusion. The shape of an alluvial estuary is characterised by exponentially varying width and the absence of bottom slope. This topography is closely related to tidal parameters, hydraulic parameters and parameters that describe 1-dimensional mixing and salt intrusion. Starting from the fundamental equations for conservation of mass and momentum, analytical equations are derived that relate the topography to tidal parameters (tidal excursion, phase lag, tidal damping, tidal amplification), wave celerity, lateral and vertical mixing and salt intrusion.
The book presents a review of the state of the art, a comprehensive theoretical background and ample case illustrations from all over the world. It provides tools with which human interference in estuary dynamics can be described and predicted, resulting from, for instance: upstream fresh water abstraction, dredging, climate change or sea-level rise. In describing the interactions between tide, topography, water quality and river discharge, it provides useful information for hydraulic engineers, morphologists, ecologists and people concerned with water quality in alluvial estuaries. Although the book can be used as a text book, it is mainly a monograph aimed at graduate students and researchers.

Key Features

  • Provides new integrated theory for tidal hydraulics, tidal mixing and salt intrusion in alluvial estuaries
  • Presents a consistent set of analytical equations to compute tidal movement, tidal mixing and salt intrusion, derived from the fundamental laws of conservation of mass and momentum
  • Serves as a practical guide with many illustrations of applications in real estuaries


Ecologists, morphologists, hydraulic engineers

Table of Contents

  1. Description and classification of alluvial estuaries

  2. 1 Importance of estuaries to mankind

  3. 2 Classification of estuaries

  4. 3 Estuary numbers

  5. 4 Alluvial estuaries and their characteristics

  6. 5 What will follow

  7. Tide and estuary shape:

  8. 1 Basic hydraulic equations

  9. 2 The shape of alluvial estuaries

  10. 3 Relating tide to shape

  11. Tidal dynamics

  12. 1 Tidal movement and amplification

  13. 2 Tidal wave propagation

  14. 3 The effect of river discharge and higher order effects on tidal damping

  15. 4 The influence of climate change and human interference on estuaries

  16. Mixing in alluvial estuaries

  17. 1 Types of mixing and their relative importance

  18. 2 Gravitational circulation

  19. 3 Mixing by the tide

  20. 4 Residual circulation through ebb and flood channels

  21. 5 The decomposition method

  22. 6 Longitudinal effective dispersion

  23. 7 Van den burgh's equation

  24. 8 General equation for longitudinal dispersion

  25. Salt intrusion in alluvial estuaries

  26. 1 Types of salt intrusion and typical shapes of salt intrusion curves

  27. 2 Salt balance equations

  28. 3 Influence of rainfall and evaporation

  29. 4 Time scale and conditions for steady state

  30. 5 Predictive model for steady state

  31. 6 Unsteady state model

  32. 7 Hyper-saline estuaries

  33. 8 Concluding remarks


No. of pages:
© Elsevier Science 2005
16th December 2005
Elsevier Science
eBook ISBN:
eBook ISBN:

About the Author

H.H.G. Savenije

Affiliations and Expertise

TU Delft, Delft, The Netherlands

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