80m Sea Rise maps - Australia

Using Google Maps and the Sea Level Rise applet, the following maps show 80 metres of sea level rise.
Areas shaded red are those areas inundated. (Click on map symbol to see enlargements.) 



Detail of Porters Hill - the ridge keeping the ocean out of the Lake Eyre Basin.  About 4km, and only a few tens of metres above 80m.  
It won't last long.   Be there when that breaks through!




I strongly recommend you check with your local maps to review the location of the 80 metre contour in your area of interest.


  1. How much will seas rise if all the ice at the poles melts?

  2. The ice in alpine snow fields and glaciers will only give a rise of less than a metre. All the rest of the sea level rise identified here is caused by the melting of the Greenland and Antarctic ice sheets that are currently either grounded or on land above sea level.

    The melting of the ice floating around in the arctic or antarctic will not lead directly to sea level rise, but the climate change effects of the increased area of open sea and its increased absorption of incoming solar energy will hasten the rise of global temperatures and have significant impacts on weather - especially in the northern hemisphere.

  3. This is such an important project! Home owners currently are extremely ill informed as to the impacts of sea level rise on their property. Long before water levels even really being to impact property, coastal home owners will be counting the cost of the THREAT from rises in insurance, rates and possible market value drop.

    Not all properties are affected the same way - it is a complex mix of soil type, topography and water movement. All coastal property owners should get a Climate Change Impact Assessment done on their block to find out the risk.

    Don't be a coastal home owner who is eventually left with a property you can't develop, occupy or resell.

    Heather Stevens

    Assessing the risk to coastal property from sea level rise

    1. Consider: even a modest rise will disable the sewerage systems of coastal and low-lying communities; the fourth horseman of the Apocalypse will be epidemic disease.

    2. Oh yes Jonathan! When you consider that most coastal communities with sewerage reticulations have pumping stations on the beach its not going to take much to disable essential services.

      The treatment plants and oxidation ponds are also within a couple of metres of the former high tide mark too.

      Same applies to the runways of a remarkable number of international airports - but that inundation event will only be a source of mild amusement as all the coastal oil refineries will have gone under by then too, and nobody will be flying anywhere anytime!


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