The Waikato region's low-lying coastal areas are susceptible to inundation from tides, storms and projected sea level rise.
The purpose of this tool is to see what areas may be subject to inundation, and to identify those areas where we need to better understand the extent of the effects of inundation.
The tool only shows ‘static’ water levels. It does not include the effects of currents, friction, waves or other hydraulic processes that affect water movement or inundation.
The tool shows:
The tool uses the best currently available water level and ground elevation information. All information will be regularly updated as required. All water levels and land elevations are provided relative to Moturiki Vertical Datum 1953.
The tool is not intended to provide specific information that could be used to define actual coastal inundation hazards or minimum floor levels for specific properties.
Please read the disclaimer first.
Zoom to your area of interest.
Water levels vary around the Waikato region's coastline, and it's important that your water level values best represent the specific location.
You can either:
You then adjust the slider tool on the map to a water level that best matches your water level scenario. Note the water levels are at 0.2m intervals.
The tool will show the water level extent on the aerial map. You can then explore the coastal inundation susceptibility of the area by adjusting the slider up and down..
Please note: The very first mapped water level for all locations shows the area that is likely to be inundated with a high tide (generally 0.2 m below the MHWS water level). All higher mapped water levels only show areas that would not normally be inundated by a high tide.
As a tip, press the Play button to 'load' all the mapped water levels first to speed up exploring the susceptibility.
For further help and information, you may like to check out:
Get in touch with us! Just send an email to firstname.lastname@example.org if you've got any comments, feedback or you need further help.
Inundation: Coastal inundation is the flooding of normally dry, low-lying coastal land. This is primarily caused by severe weather events along the coasts, estuaries, and adjoining rivers.