Modelling floodplain inundation for environmental flows: Gwydir wetlands, Australia

Sue Powell, R Letcher, Barry Croke

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Floodplain wetlands rely on catchment flows to maintain the flooding cycles critical to their ecological integrity. The development of water resources has significantly altered the flow patterns in many river systems. Recent research into water requirements for wetland systems shows that duration, frequency, depth, timing and extent of flooding are the most important influences on ecological communities. Modelling these systems is hampered by a lack of data and inappropriate model structures. Remote sensing using AVHRR satellite data were shown to be an effective option for assessing flood dynamics. Vegetation communities and flood patterns of the Gwydir floodplainwere analysed to provide a model structure based on channel, flowpath and core wetland components. The temporal and spatial behaviour of each component was described using water balance principles. The model was calibrated and tested under a range of climatic conditions and the results demonstrate that the model can simulate ecologically significant flood dynamics of the floodplain wetland. This study demonstrates that a conceptually based, semi-distributed water balance approach can provide the basis for an effective decision support system for water management.
Original languageEnglish
Pages (from-to)350-362
Number of pages13
JournalEcological Modelling
Volume211
DOIs
Publication statusPublished - 2008
Externally publishedYes

Fingerprint

floodplain
wetland
modeling
water budget
flooding
decision support system
AVHRR
flow pattern
river system
satellite data
water management
water resource
catchment
remote sensing
vegetation
water

Cite this

Powell, Sue ; Letcher, R ; Croke, Barry. / Modelling floodplain inundation for environmental flows: Gwydir wetlands, Australia. In: Ecological Modelling. 2008 ; Vol. 211. pp. 350-362.
@article{bc67aeaf9d4b4773ae1573156aed3194,
title = "Modelling floodplain inundation for environmental flows: Gwydir wetlands, Australia",
abstract = "Floodplain wetlands rely on catchment flows to maintain the flooding cycles critical to their ecological integrity. The development of water resources has significantly altered the flow patterns in many river systems. Recent research into water requirements for wetland systems shows that duration, frequency, depth, timing and extent of flooding are the most important influences on ecological communities. Modelling these systems is hampered by a lack of data and inappropriate model structures. Remote sensing using AVHRR satellite data were shown to be an effective option for assessing flood dynamics. Vegetation communities and flood patterns of the Gwydir floodplainwere analysed to provide a model structure based on channel, flowpath and core wetland components. The temporal and spatial behaviour of each component was described using water balance principles. The model was calibrated and tested under a range of climatic conditions and the results demonstrate that the model can simulate ecologically significant flood dynamics of the floodplain wetland. This study demonstrates that a conceptually based, semi-distributed water balance approach can provide the basis for an effective decision support system for water management.",
keywords = "Wetland model, Water balance, Wetlands, Floodplains, Water management, Remote sensing, Decision support, Terminal floodplain",
author = "Sue Powell and R Letcher and Barry Croke",
year = "2008",
doi = "10.1016/j.ecolmodel.2007.09.013",
language = "English",
volume = "211",
pages = "350--362",
journal = "Ecological Modelling",
issn = "0304-3800",
publisher = "Elsevier",

}

Modelling floodplain inundation for environmental flows: Gwydir wetlands, Australia. / Powell, Sue; Letcher, R; Croke, Barry.

In: Ecological Modelling, Vol. 211, 2008, p. 350-362.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Modelling floodplain inundation for environmental flows: Gwydir wetlands, Australia

AU - Powell, Sue

AU - Letcher, R

AU - Croke, Barry

PY - 2008

Y1 - 2008

N2 - Floodplain wetlands rely on catchment flows to maintain the flooding cycles critical to their ecological integrity. The development of water resources has significantly altered the flow patterns in many river systems. Recent research into water requirements for wetland systems shows that duration, frequency, depth, timing and extent of flooding are the most important influences on ecological communities. Modelling these systems is hampered by a lack of data and inappropriate model structures. Remote sensing using AVHRR satellite data were shown to be an effective option for assessing flood dynamics. Vegetation communities and flood patterns of the Gwydir floodplainwere analysed to provide a model structure based on channel, flowpath and core wetland components. The temporal and spatial behaviour of each component was described using water balance principles. The model was calibrated and tested under a range of climatic conditions and the results demonstrate that the model can simulate ecologically significant flood dynamics of the floodplain wetland. This study demonstrates that a conceptually based, semi-distributed water balance approach can provide the basis for an effective decision support system for water management.

AB - Floodplain wetlands rely on catchment flows to maintain the flooding cycles critical to their ecological integrity. The development of water resources has significantly altered the flow patterns in many river systems. Recent research into water requirements for wetland systems shows that duration, frequency, depth, timing and extent of flooding are the most important influences on ecological communities. Modelling these systems is hampered by a lack of data and inappropriate model structures. Remote sensing using AVHRR satellite data were shown to be an effective option for assessing flood dynamics. Vegetation communities and flood patterns of the Gwydir floodplainwere analysed to provide a model structure based on channel, flowpath and core wetland components. The temporal and spatial behaviour of each component was described using water balance principles. The model was calibrated and tested under a range of climatic conditions and the results demonstrate that the model can simulate ecologically significant flood dynamics of the floodplain wetland. This study demonstrates that a conceptually based, semi-distributed water balance approach can provide the basis for an effective decision support system for water management.

KW - Wetland model

KW - Water balance

KW - Wetlands

KW - Floodplains

KW - Water management

KW - Remote sensing

KW - Decision support

KW - Terminal floodplain

U2 - 10.1016/j.ecolmodel.2007.09.013

DO - 10.1016/j.ecolmodel.2007.09.013

M3 - Article

VL - 211

SP - 350

EP - 362

JO - Ecological Modelling

JF - Ecological Modelling

SN - 0304-3800

ER -