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Wetland hydrological models

Wetland models enable users to quantify and predict the performance of wetland systems. This is important to understand how best to use both natural and constructed treatment wetlands to improve water quality, and to support wetland rehabilitation[2].

Pictorial conceptual model montage. Images by Lana Baskerville

Quick fact

Models are approximations
or simplified representations of a system of interest that link its state to its drivers (inputs) and responses (outputs)[1]

Wetland hydrological models – Wetland catchment/subcatchment model

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Modelling multiple wetlands within a catchment or subcatchment adds complexity, data requirements, and processing power. Incorporating detailed wetland models as a dedicated ‘module’ or ‘plug-in’ with a broader catchment model may be difficult, depending on the size of the catchment, the complexity of the models, the model framework and configuration, data requirements, and the time steps used in the models[2].

A catchment or subcatchment model can incorporate individual site scale wetlands as part of a node and link network often used to describe a catchment. These incorporate the same forcing factors, constituents and processes as the catchment model, but may be less detailed as noted above.


  1. ^ Queensland Water Modelling Network (2018), Good Modelling Practice Principles. [online], Brisbane, Queensland. Available at:
  2. ^ a b Weber, T, de Groot, A, Hamilton, D, Yu, S & Bayley, M (2021), QWMN Wetlands Hydrology Models Review, Alluvium Consulting Australia, Griffith University, and Australian Wetlands Consulting.

Last updated: 31 May 2023

This page should be cited as:

Department of Environment, Science and Innovation, Queensland (2023) Wetland hydrological models – Wetland catchment/subcatchment model, WetlandInfo website, accessed 18 March 2024. Available at:

Queensland Government
WetlandInfo   —   Department of Environment, Science and Innovation