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Rule used to identify high hazard areas:<\/SPAN><\/SPAN><\/P> Either: <\/SPAN><\/SPAN><\/P> - the water depth is greater than 1 m, or<\/SPAN><\/SPAN><\/P> - the water depth (in metres) x the water velocity (in metres per second) is equal to or greater than 1.<\/SPAN><\/SPAN><\/P> High rainfall hazard areas were identified using the two raster: SD_500_8p5_WD (depth) and SD_500_8p5_HZ (depth*velocity)(Location: <\/SPAN><\/SPAN>ArcGIS 10.9.1 SD\\Feature\\geodatabases\\DHI_RainOnGrid.gdb<\/SPAN><\/SPAN><\/A>; Source: DHI New Zealand) <\/SPAN><\/SPAN><\/P> High river hazard areas were identified using the two raster: FINAL_500yr_ARI_Q_1000cumecs_MAX_VEL0.asc (depth) and <\/SPAN><\/SPAN><\/P> FINAL_500yr_ARI_Q_1000cumecs_MAX_DEP0.asc (velocity) (Location: Flood 200yr_500yr\\Additional Data_SelwynRiver_ECan\\FINAL_500yr_ARI_Q_1000cumecs; Source: ECAN)<\/SPAN><\/SPAN><\/P> More information can be found at: https://apps.canterburymaps.govt.nz/SelwynNaturalHazards/<\/SPAN><\/SPAN><\/P> or the following reports: <\/SPAN><\/SPAN>Selwyn River / Waikirikiri Floodplain Investigation<\/SPAN><\/SPAN><\/A> and <\/SPAN><\/SPAN>DHI Water and Environment Ltd report \u2013 Regional Policy Statement Modelling for SDC \u2013 District Plan<\/SPAN><\/SPAN><\/A><\/P><\/DIV><\/DIV><\/DIV>",
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