Temperature, wind, salinity and current (GBR1)

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    This page shows a catalogue of videos generated from the eReefs Hydrodynamic model. Click on a month to choose the period of the video or click on the map to zoom in on a region.

    This combination shows key hydrodynamic parameters of the Great Barrier Reef. These map layers are also available for inspection as an interactive map. You can also access the raw data from NCI THREDDS server (hourly) and the aggregate data from the AIMS eAtlas THREDDS server (daily, monthly, yearly, all).


    The temperature is primarily driven by the seasons. If the temperature rises too high during summer months then it can cause corals to bleach.


    The wind is a key driver of surface water currents, mixing and waves. In summer months when the wind is low the surface temperatures rise significantly during the day, resulting in a "heart-beat" in the temperature in the video. The wind also drives the direction of the flood plumes, typically blowing north west making them hug the coast. When the wind occasionally blows offshore then the plumes are pushed further out.


    Low salinity (dark blue) occurs due to river out flows causing flood plumes and rain events. This is a good proxy for where plume waters might be. During flood plumes if the wind is blowing offshore then it will push the plume off the coast more toward the reefs.


    The strength of the current is represented by colour. The arrows represent the direction.