Wetland monitoring in the Australian tropics

saltwater intrusion processes – towards a calibrated hydrodynamic model

    Research output: Contribution to conferenceAbstractResearch

    Abstract

    The Northern Territory faces land loss and saltwater intrusion due to sea level rise at a rate of up to 8mm p.a., some three times the global average. The effect that this increased rate of SLR has had on the local wetland ecosystem is significant. The Mary River coastal wetland lies below the mean spring high tide and has undergone 250 km2 of saltwater intrusion since the 1940s. This has resulted in, among other phenomena, dieback of 40 km2 of melaleuca (Melaleuca viridiflora, M. cajuputi, M.leucadendra, and M. citrolens), and an exponential increase in network magnitude. A numerical model of the Mary River has been developed using MIKE 21 to simulate the hydrodynamics of the channelfloodplainsystem; the model includes bathymetry, vegetation, dynamic inputs, temperature, andsalinity. Calibration of the model, with 3-d velocimetry, discharge, and conductivity-temperature-depth measurements at eight sites, is being undertaken. Sea level rise scenarios were simulated and likely future adaptation methods designed for these wetlands. In light of these simulations of predicted conditions over the next century, a new scoring/ranking system for both traditional and eco-engineering options was proposed. In the case of the Mary River wetlands, traditional engineering was neither required, nor beneficial; ecological engineering associated with conservation and rehabilitation was deemed a more effective management response.
    Original languageEnglish
    Publication statusPublished - 2015
    EventSWS Annual Meeting: Changing climate. Changing wetlands. - Providence, United States
    Duration: 31 May 20154 Jun 2015
    https://www.sws.org/1667-sws-2015-annual-meeting-7.html

    Conference

    ConferenceSWS Annual Meeting
    CountryUnited States
    CityProvidence
    Period31/05/154/06/15
    Internet address

    Fingerprint

    saline intrusion
    hydrodynamics
    wetland
    monitoring
    river
    engineering
    ecological engineering
    satellite laser ranging
    dieback
    coastal wetland
    vegetation dynamics
    bathymetry
    ranking
    tide
    conductivity
    temperature
    calibration
    simulation
    tropics
    sea level rise

    Cite this

    @conference{38182a840f5b4d1e9cafd6a9c446f348,
    title = "Wetland monitoring in the Australian tropics: saltwater intrusion processes – towards a calibrated hydrodynamic model",
    abstract = "The Northern Territory faces land loss and saltwater intrusion due to sea level rise at a rate of up to 8mm p.a., some three times the global average. The effect that this increased rate of SLR has had on the local wetland ecosystem is significant. The Mary River coastal wetland lies below the mean spring high tide and has undergone 250 km2 of saltwater intrusion since the 1940s. This has resulted in, among other phenomena, dieback of 40 km2 of melaleuca (Melaleuca viridiflora, M. cajuputi, M.leucadendra, and M. citrolens), and an exponential increase in network magnitude. A numerical model of the Mary River has been developed using MIKE 21 to simulate the hydrodynamics of the channelfloodplainsystem; the model includes bathymetry, vegetation, dynamic inputs, temperature, andsalinity. Calibration of the model, with 3-d velocimetry, discharge, and conductivity-temperature-depth measurements at eight sites, is being undertaken. Sea level rise scenarios were simulated and likely future adaptation methods designed for these wetlands. In light of these simulations of predicted conditions over the next century, a new scoring/ranking system for both traditional and eco-engineering options was proposed. In the case of the Mary River wetlands, traditional engineering was neither required, nor beneficial; ecological engineering associated with conservation and rehabilitation was deemed a more effective management response.",
    author = "Michael Miloshis and Charlie Fairfield",
    year = "2015",
    language = "English",
    note = "SWS Annual Meeting : Changing climate. Changing wetlands. ; Conference date: 31-05-2015 Through 04-06-2015",
    url = "https://www.sws.org/1667-sws-2015-annual-meeting-7.html",

    }

    Wetland monitoring in the Australian tropics : saltwater intrusion processes – towards a calibrated hydrodynamic model. / Miloshis, Michael; Fairfield, Charlie.

    2015. Abstract from SWS Annual Meeting, Providence, United States.

    Research output: Contribution to conferenceAbstractResearch

    TY - CONF

    T1 - Wetland monitoring in the Australian tropics

    T2 - saltwater intrusion processes – towards a calibrated hydrodynamic model

    AU - Miloshis, Michael

    AU - Fairfield, Charlie

    PY - 2015

    Y1 - 2015

    N2 - The Northern Territory faces land loss and saltwater intrusion due to sea level rise at a rate of up to 8mm p.a., some three times the global average. The effect that this increased rate of SLR has had on the local wetland ecosystem is significant. The Mary River coastal wetland lies below the mean spring high tide and has undergone 250 km2 of saltwater intrusion since the 1940s. This has resulted in, among other phenomena, dieback of 40 km2 of melaleuca (Melaleuca viridiflora, M. cajuputi, M.leucadendra, and M. citrolens), and an exponential increase in network magnitude. A numerical model of the Mary River has been developed using MIKE 21 to simulate the hydrodynamics of the channelfloodplainsystem; the model includes bathymetry, vegetation, dynamic inputs, temperature, andsalinity. Calibration of the model, with 3-d velocimetry, discharge, and conductivity-temperature-depth measurements at eight sites, is being undertaken. Sea level rise scenarios were simulated and likely future adaptation methods designed for these wetlands. In light of these simulations of predicted conditions over the next century, a new scoring/ranking system for both traditional and eco-engineering options was proposed. In the case of the Mary River wetlands, traditional engineering was neither required, nor beneficial; ecological engineering associated with conservation and rehabilitation was deemed a more effective management response.

    AB - The Northern Territory faces land loss and saltwater intrusion due to sea level rise at a rate of up to 8mm p.a., some three times the global average. The effect that this increased rate of SLR has had on the local wetland ecosystem is significant. The Mary River coastal wetland lies below the mean spring high tide and has undergone 250 km2 of saltwater intrusion since the 1940s. This has resulted in, among other phenomena, dieback of 40 km2 of melaleuca (Melaleuca viridiflora, M. cajuputi, M.leucadendra, and M. citrolens), and an exponential increase in network magnitude. A numerical model of the Mary River has been developed using MIKE 21 to simulate the hydrodynamics of the channelfloodplainsystem; the model includes bathymetry, vegetation, dynamic inputs, temperature, andsalinity. Calibration of the model, with 3-d velocimetry, discharge, and conductivity-temperature-depth measurements at eight sites, is being undertaken. Sea level rise scenarios were simulated and likely future adaptation methods designed for these wetlands. In light of these simulations of predicted conditions over the next century, a new scoring/ranking system for both traditional and eco-engineering options was proposed. In the case of the Mary River wetlands, traditional engineering was neither required, nor beneficial; ecological engineering associated with conservation and rehabilitation was deemed a more effective management response.

    M3 - Abstract

    ER -