Meeting papers

    Understanding the Need for Resilience
    At present, the foreshore benefits from an accessible          We know our subtropical climate can be hot and this          Riverbank Condition                                                              Flooding                                             Legend
    and scenic riverside location, where changes to its            heat impacts liveability and community wellbeing.
                                                                                                                                                                                                                                                                             Topographic High Point
    condition have been happening for decades. These               Our partnership with UniSC to monitor and model
    changes have mostly occurred in small increments               micro-climate on the foreshore is ongoing. Urban                                                                                                                                                          Urban Heat Island Area
    and are not necessarily apparent day in and day out.           Heat Island (UHI) is defined as ‘Urbanised areas that
    Over time the foreshore has been and will continue to          experience higher temperatures than the surrounding                                                                                                                                                       Rock Seawall
    be impacted by extreme weather events.                         areas, largely caused by loss of vegetation, capacity to
                                                                                                                                                                                                                                                                             Retaining Walls
                                                                   infiltrate rainwater and an increase in heat absorption
    Flooding is one of the biggest challenges, with tidal          by built structures’.2 Indicative UHIs have been
    inundation events historically impacting the foreshore.        identified on the foreshore that are subject to the
                                                                                                                                                                                                                                                                      Sea-level Rise Inundation Extent at
                                                                                                                                                                                                                                                                      Highest Astronomical Tide (HAT)
    The Queensland Government defines tidal inundation             growing impacts of heat due to climate change.
    as “abnormal elevation of the sea level (a storm surge)                                                                                                                                                                                                                  2040
                                                                                                                                Figure 7. Historic image showing Figure 8. Erosion on the riverbank Figure 9. Pelican Boat Hire
    over normal tide levels”. The foreshore is generally           Existing tree canopy cover varies along the foreshore        vegetation along the riverbank.  caused by boat wash and wave       impacted by flood waters. Credit:
    flat and low-lying, therefore at present inundation            with the highest identified in Pelican Beach Park            Credit: Griffiths Studio         action.                            Rob Maccoll                                                              2070
    impacts areas of the foreshore, particularly to the west.      (35.3%) and the lowest in Gympie Terrace East (15.9%).
    Predictive flood modelling for 2040 and 2070 indicate          Lower canopy cover worsens the impacts UHIs and                                                                                                                                                           2100

    sea level rise and increased inundation due to climate         reduces parkland amenity of unshaded footpaths,              Tree Canopy Cover
    change. The high points in the foreshore that are less         seating and gathering spaces.                                            Chaplin Park      23.8%                                              Figure 10. Canopy Cover
    prone to flooding include the tennis court, public boat                                                                       Yacht & Rowing Club              25%                                           (including Gympie Terrace)                                          CE
                                                                   Structures and vegetation can block cooling breezes,                                                                                          Note - The percentages shown                                  E R RA E
                                                                                                                                                                                                                                                                                     OR
                                                                                                                                      Lions & Apex Parks       26.5%
    ramp and Ely Park.                                                                                                                                                                                                                                                       T
                                                                   contributing to heat. South-easterly breezes are the                      Quota Park                30%                                       are estimates only and do not
                                                                                                                                                                                                                                                                      M P I E R ES H
                                                                                                                                  Boat Ramp & Eli Park         26.3%                                             represent an accurate survey of                    GY T FO
    Beach nourishment activities are currently being               main winds that affect Noosaville. The foreshore’s              Pelican Beach Park                   35.3%                                    tree canopy.                                       EAS
    undertaken by Council, using dredged sand to top-up            position on the southern river bank means it is




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                                                                                                                                  Gympie Terrace East      15.9%
    areas impacted by erosion. Historically, retaining walls       sheltered from the prevailing winds, but benefits from                                                                                                                    K




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    and sea walls have been constructed to prevent sand            cooling coastal breezes.                                                                                                                                      BEA




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    loss that is typically caused by high tides, wind and                                                                                                                                                     PE L




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                                                                   Sea level rise and heat due to climate change is




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    wave action.




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                                                                   predicted to impact existing vegetation, with an
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                                                                   increase in inundation, salinity and temperatures.
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