Coastal hydrodynamic and morphodynamic processes and engineering

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Coastal hydrodynamic and morphodynamic processes and engineering



Introduction

This article presents an overview of the Coastal Wiki content (July 2017) on coastal hydrodynamic and morphodynamic processes, long term geomorphological change, climate impacts and coastal engineering (articles in blue). This content was initiated by the ENCORA themes 5 and 8.

The article also indicates missing topics (articles in red). Please help us fill these gaps by expanding and claiming these missing topics.

For some gaps alternative websites are indicated, in particular:

See also: Definitions of coastal terms.

Coastal hydrodynamics

Coastal Wiki articles

Coastal Wiki gaps

  • Hydrodynamic processes and equations - introduction to the mathematical formulation of major physical processes that should be addressed in models for different types of coastal systems (sediment transport formulas are addressed in other articles)


Waves

Coastal Wiki articles

Incomplete articles

  • Waves – more comprehensive introduction to wave phenomena and wave types: progressive, standing, surface, internal, gravity, capillary, wind wave, swell, tide, planetary or Rossby waves, tsunami, ship waves.
  • Wave transformation , see Shallow-water wave theory
  • Edge waves definition should be expanded: periods incident waves, reflection, dissipation, propagation, coastally trapped waves


Coastal Wiki gaps


External references


Tides

Coastal Wiki articles


Incomplete articles

  • Storm surge definition needs expansion: storm surge prediction, storm surge modelling, storm surge impact


External references


Currents

Coastal Wiki articles


Coastal Wiki gaps

  • Wind driven currents – sea surface entrainment, turbulence, Ekman theory
  • Tidal currents - currents in inlets and estuaries: 1D, 2D log profile, boundary layer, eddy viscosity, bed shear stress, convergent channels, reflected wave, channel bends, choked inlets
  • Density-driven currents – buoyancy, stratification, turbulence damping, entrainment, modelling
  • Turbulence – generation, coherent flow structures, dissipation, Kolmogorov theory, spectrum, shear stress, diffusion, mixing length


Transport and mixing processes

Coastal Wiki articles


Incomplete articles

  • Stratification – needs expansion: stability criteria, internal waves, Kelvin-Helmholz instability, turbulence damping, internal friction, mixing


Coastal Wiki gaps


External references


Flood risk

Coastal Wiki articles


Coastal Wiki gaps


Coastal sediments and sediment transport

Coastal Wiki articles


Coastal Wiki gaps


Coastal morphology

Wave-dominated coasts

Coastal Wiki articles


Incomplete articles

  • Rocky shore morphology – needs expansion to cliff morphology, sediment input, shore platforms, stacks, headlands, etc.
  • Beach berm – expand definition and add section on berm formation


Coastal Wiki gaps

  • Typology of coastlines – introduction to different coastline classification schemes, accretional, erosional coasts, beaches, estuaries, inlets, deltas, cliffs, mudflats, dunes, stacks, headlands, blowholes
  • Wave-dominated coast general introduction: barriers, beaches, breaker bars, intertidal bars and runnels
  • Macrotidal coasts - introduction to: characteristics of macrotidal coasts (compared to micro- or mesotidal coasts), variability, major involved hydrodynamic and morphodynamic processes, resilience, response to sea-level rise
  • Fluvial-dominated coasts - introduction to the particular characteristics of mud coasts (compared to sand coasts) and the processes responsible for their formation, evolution and maintenance, threats and response to sea-level rise
  • Typology of mangrove coasts – morphological-ecological interaction
  • Coastal barrier formation - introduction to characteristics of coastal barriers, their importance, processes responsible for their formation, evolution and maintenance, threats to existing coastal barriers (human interventions and sea-level rise), good management practices
  • Beach-dune interaction - introduction to major processes of coastal dune formation and erosion, and practical modelling concepts
  • Reef systems


External references

Deltas, estuaries and lagoons

Coastal Wiki articles

Incomplete articles

  • Mudflat – needs expansion of existing definition, mudflat morphology and morphodynamics (interaction morphology-tide-waves-biology), link to saltmarsh morphology
  • Salt marsh morphodynamics – typical salt marsh morphologies, introduction to underlying physical feedback processes (interaction waves, tide with morphology), biogeomorphodynamics
  • Fjords – definition needs to be expanded: formation process, hydrodynamics
  • Coastal squeeze – article must be revised and expanded: introduction to the concept of coastal squeeze, influential factors, how does it happen, consequences, examples, how to avoid, how to mitigate, lessons from practice
  • Characteristics of muddy coasts - needs revision and expansion to include wave influence and interactions ecology-hydrodynamics-morphology.


Coastal Wiki gaps


External references


Coastal morphology measuring techniques

Coastal Wiki articles


Coastal morphodynamic modelling and self-organisation

Coastal Wiki articles


Coastal Wiki gaps

  • Coastline instability - introduction to conditions for coastline instability, occurrence, characteristics of unstable coastlines, observations, processes, morphodynamic feedback, modelling, practical formulas, implications for coastal management
  • Nearshore bed forms and bed roughness – extension of Bedforms and roughness with a more detailed treatment of the physical background and practical methods for representing the influence of bed forms and bed roughness in the nearshore zone in numerical models of waves, currents, mixing and sediment transport
  • Sand waves - introduction to characteristics of sand waves, their practical importance, conditions and major (feedback)processes for their formation, evolution and maintenance, modelling, some examples and simple rules
  • Bio-geomorphology of the coastal zone – morphological and ecological patterns in the coastal zone resulting from the interaction between biotic and physical processes

Coastal erosion

Coastal Wiki articles


Coastal Wiki gaps

  • Shoreline prediction – practical (data-driven) methods, applicability, storms, implication for coastal management
  • Decadal coastal prediction - introduction to (data-driven) methods for predicting coastal evolution over decadal time scale


Long-term morphodynamics and climate change

Coastal Wiki articles


Incomplete articles

  • Geomorphology – needs expansion to a general article linking to more specific articles
  • Climate change - extend existing definition to general introduction to the topic


Coastal Wiki gaps


Coastal protection and engineering

Hard measures

Soft measures

Wind and wave energy


Incomplete articles

  • Dredging needs expansion with overview article of techniques and impact


Coastal Wiki gaps


External references