Start date:
14 Feb 2023, 8.00AM
duration:
33 hrs
Venue:
TBC
Address:
TBC
Cost:
  • $900.00 incl. GST
Register Add to Calendar 2023-02-14 08:00:00 2023-02-15 17:00:00 Pacific/Auckland Strategic overview of rivers and catchments:...

Date and time
2-day workshop – Wellington
14 & 15 February 2023
Day one: classroom
Day two: field trip, Waikanae

Cost
Cost – $900.00
Council Staff – $200.00 discount
Rivers Group - 10% discount
Please mention discount when making the booking 

Key themes

Management issues for which geomorphic insight is fundamental:

  • Work with the river (nature-based solutions) – respect diversity, work with process
  • Determine what is realistically achievable
  • Be proactive, precautionary, pre-emptive – tackle threatening processes
  • Risk management
  • Integrated Catchment Management
  • Active and passive practices (including the do-nothing option) – hard versus soft engineering practices … Role of maintenance (weed management)
  • Flood management/protection versus ‘living with a living river’
  • Managing river erosion
  • Using sediment budgets to manage sedimentation issues (including sand/gravel extraction)

Spatial Dimensions of geomorphologically-informed river management

Catchment

  • Fundamental geomorphic unit
  • Longitudinal profile – source, transfer accumulation zones
  • Network relationships (tributary-trunk stream pattern, flux)
  • Connectivity relationships

Channel planform: Braided, wandering gravel-bed, active meandering passive meandering, discontinuous watercourse (wetland/swamp)

Channel geometry

  • Downstream and at-a-station hydraulic geometry
  • Size and shape

Geomorphic units

  • Erosional and depositional forms (and process relations)
  • Channel (instream) and floodplain
  • Assemblages – and approach to analysis of morphodynamics, condition, recovery (Fryirs & Brierley, 2021)

Bed material size

  • Bedrock, Boulder/cobble, gravel-bed, sand-bed, fine-grained
  • Bedload, mixed load, suspended load

Temporal dimensions of geomorphologically-informed river management
Timescale: Geologic, geomorphic, engineering
Magnitude-frequency relations
Equilibrium versus non-linear relations
Legacy effect (landscape memory)

Processes of geomorphic river adjustment

  • Balance of impelling and resisting forces
  • Stream power, shear stress
  • Resistance elements – role of riparian vegetation, wood, ecosystem engineers
  • Entrainment, transport, deposition (Hjulstrom curve)
  • Sediment transport – Bedload, suspended load, solution load
  • Aggradation/degradation regime – Lane Balance

Evolutionary trajectory of rivers (and recovery potential)

  • Relating character and behaviour (capacity for adjustment/range of variability) to evolutionary trajectory
  • Scoping (modeling) prospective river futures to determine what is realistically achievable in management

Geomorphology and river health (condition)
What do we measure where, how and why?
What do we measure against?

Geomorphic relations to Māori conceptualisations of rivers
A living river ethos, mauri, mana, ora

How geomorphology can support river management (indicative only – set up follow up specialist courses)
Scoping river futures - Proactive and precautionary approaches to Visioning & Catchment Planning
Concern for treatment response
Geoethical considerations – concerns for social and environmental justice

  • Risk management
  • Integrated Catchment Management
  • Active and passive practices (including the do-nothing option) – hard versus soft engineering practices … Role of maintenance (weed management)
  • Flood management/protection versus ‘living with a living river’
  • Managing river erosion
  • Using sediment budgets to manage sedimentation issues (including sand/gravel extraction)

Email Rachael Armstrong to register 

TBC Engineering New Zealand hello@engineeringnz.org

Join the River Managers Professional Development Programme for this 2 day event on familiarity with key principles in fluvial geomorphology and their application to various river management situation

Date and time
2-day workshop – Wellington
14 & 15 February 2023
Day one: classroom
Day two: field trip, Waikanae

Cost
Cost – $900.00
Council Staff – $200.00 discount
Rivers Group - 10% discount
Please mention discount when making the booking 

Key themes

Management issues for which geomorphic insight is fundamental:

  • Work with the river (nature-based solutions) – respect diversity, work with process
  • Determine what is realistically achievable
  • Be proactive, precautionary, pre-emptive – tackle threatening processes
  • Risk management
  • Integrated Catchment Management
  • Active and passive practices (including the do-nothing option) – hard versus soft engineering practices … Role of maintenance (weed management)
  • Flood management/protection versus ‘living with a living river’
  • Managing river erosion
  • Using sediment budgets to manage sedimentation issues (including sand/gravel extraction)

Spatial Dimensions of geomorphologically-informed river management

Catchment

  • Fundamental geomorphic unit
  • Longitudinal profile – source, transfer accumulation zones
  • Network relationships (tributary-trunk stream pattern, flux)
  • Connectivity relationships

Channel planform: Braided, wandering gravel-bed, active meandering passive meandering, discontinuous watercourse (wetland/swamp)

Channel geometry

  • Downstream and at-a-station hydraulic geometry
  • Size and shape

Geomorphic units

  • Erosional and depositional forms (and process relations)
  • Channel (instream) and floodplain
  • Assemblages – and approach to analysis of morphodynamics, condition, recovery (Fryirs & Brierley, 2021)

Bed material size

  • Bedrock, Boulder/cobble, gravel-bed, sand-bed, fine-grained
  • Bedload, mixed load, suspended load

Temporal dimensions of geomorphologically-informed river management
Timescale: Geologic, geomorphic, engineering
Magnitude-frequency relations
Equilibrium versus non-linear relations
Legacy effect (landscape memory)

Processes of geomorphic river adjustment

  • Balance of impelling and resisting forces
  • Stream power, shear stress
  • Resistance elements – role of riparian vegetation, wood, ecosystem engineers
  • Entrainment, transport, deposition (Hjulstrom curve)
  • Sediment transport – Bedload, suspended load, solution load
  • Aggradation/degradation regime – Lane Balance

Evolutionary trajectory of rivers (and recovery potential)

  • Relating character and behaviour (capacity for adjustment/range of variability) to evolutionary trajectory
  • Scoping (modeling) prospective river futures to determine what is realistically achievable in management

Geomorphology and river health (condition)
What do we measure where, how and why?
What do we measure against?

Geomorphic relations to Māori conceptualisations of rivers
A living river ethos, mauri, mana, ora

How geomorphology can support river management (indicative only – set up follow up specialist courses)
Scoping river futures - Proactive and precautionary approaches to Visioning & Catchment Planning
Concern for treatment response
Geoethical considerations – concerns for social and environmental justice

  • Risk management
  • Integrated Catchment Management
  • Active and passive practices (including the do-nothing option) – hard versus soft engineering practices … Role of maintenance (weed management)
  • Flood management/protection versus ‘living with a living river’
  • Managing river erosion
  • Using sediment budgets to manage sedimentation issues (including sand/gravel extraction)

Email Rachael Armstrong to register