Caveats for Coastal Inundation Risk Report
This tool has been developed using the best available science at the time of creation. However there are some shortcomings of the tool that need to be mentioned.
The impact of climate change on storm tides is still a developing scientific field in which not all mechanisms are fully understood or modelled at high resolution. Therefore at this time our analysis assumes that the storm tide climate will stay the same as per historical statistical behaviour and only sea level will change.
There are known discrepancies between the LiDAR elevation data and some surveying control points used - which may be of the order of a 1cm. The discrepancy is likely due to the vertical resolution of the LiDAR available, and surface accuracy which in thi model is to 5 square metres. Survey control points will be single points of greater elevation accuracy.
It is not possible within the scope of this analysis to estimate impacts on estuaries. They can be heavily impacted by tidal forcing, many kilometres from the ocean, equally they can be less prone to storm tides and wave set-up. They will also be vulnerable to combined impacts from rainfall which is beyond the scope of this model. Climate Valuation notes this as an area for future development.
The system does not consider erosion or land slip. These can be important impacts where high seas meet soft coastlines. These effects can undermine properties which may be sufficiently elevated to avoid inundation, but still vulnerable to erosion of the ground they stand on resulting in compromised foundations.