Parent Layer: Flood Modelling 1%AEP

Name: Stormwater Flood Modelling 1% AEP

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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Stormwater flood modelling data</SPAN><SPAN>.</SPAN><SPAN /><SPAN>Depth values in metres.</SPAN></P><P><SPAN>RLC data</SPAN><SPAN>: </SPAN><SPAN>This modelling was produced to inform infrastructure planning and is indicative only. It is produced at a catchment rather than property-specific level and incorporates a range of assumptions and limitations. Rotorua Lakes Council and its consultants accept no responsibility for the accuracy of the mapping or any decisions based on it.</SPAN><SPAN>NOTE: Catchments may be part of more than one model - make sure to use appropriate queries on the data. </SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>Catchment-specific comments/assumptions:</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN STYLE="font-size:10pt">* Catchment 4 Updated Assumptions: </SPAN><SPAN>Original report based on HIRDS v3 rainfall including climate change to 2090 with a temperature increase of 2.1°C. The flood map is updated using Rainfall: HIRDSv4 rainfall with climate change to 2100 IPCC scenario RCP8.5</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>+ Catchment 4 Related Reports: Catchment 4 Stormwater Model Build and System Performance Report, April 2017, Opus International Consultants Ltd, RDC-772974; Memorandum on Catchments 4 and 6: Additional results for 1% AEP event, January 2018, RDC-797296</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>* Catchment 5 Updated Assumptions: Original report based on HIRDS v3 rainfall including climate change to 2090 with a temperature increase of 2.1°C. The flood map is updated using Rainfall: HIRDSv4 rainfall with climate change to 2100 IPCC scenario RCP8.5</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>+ Catchment 5 Related Reports: Catchment 5 Stormwater Model Build and System Performance Report, August 2016, Opus International Consultants Ltd, RDC-687530</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>* Catchment 6 Updated Assumptions: Original report based on HIRDS v3 rainfall including climate change to 2090 with a temperature increase of 2.1°C. The flood map is updated using Rainfall: HIRDSv4 rainfall with climate change to 2100 IPCC scenario RCP8.5</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>+ Catchment 6 Related Reports: Catchment 6 Stormwater Model Build and System Performance Report, March 2017, Opus International Consultants, RDC-772471; Memorandum on Catchments 4 and 6: Additional results for 1% AEP event, January 2018, RDC-797296</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>* Catchment 8 Updated Assumptions (data with dateStart 26/4/2023): Original report based on HIRDS v3 rainfall including climate change to 2090 with a temperature increase of 2.1°C. The flood map is updated using Rainfall: HIRDSv4 rainfall with climate change to 2100 IPCC scenario RCP8.5; updated data use 2120 rainfall</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>* Catchment 8 Updated Assumptions (data with dateEnd 26/4/2023): Original report based on HIRDS v3 rainfall including climate change to 2090 with a temperature increase of 2.1°C. The flood map is updated using Rainfall: HIRDSv4 rainfall with climate change to 2100 IPCC scenario RCP8.5</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>+ Catchment 8 Related Reports: Under development</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>* Catchment 12 Updated Assumptions (data with dateStart 26/4/2023): Original report based on HIRDS v3 rainfall including climate change to 2090 with a temperature increase of 2.1°C. The flood map is updated using Rainfall: HIRDSv4 rainfall with climate change to 2100 IPCC scenario RCP8.5; updated data use 2120 rainfall</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>* Catchment 12 Updated Assumptions (data with dateEnd 26/4/2023): Original report based on HIRDS v3 rainfall including climate change to 2090 with a temperature increase of 2.1°C. The flood map is updated using Rainfall: HIRDSv4 rainfall with climate change to 2100 IPCC scenario RCP8.5</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>+ Catchment 12 Related Reports: Under development</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>* Catchment 14 Updated Assumptions: Original report based on HIRDS v3 rainfall including climate change to 2090 with a temperature increase of 2.1°C. The flood map is updated using Rainfall: HIRDSv4 rainfall with climate change to 2100 IPCC scenario RCP8.5</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>+ Catchment 14 Related Reports: Catchment 14 Stormwater Model Build and System Performance Report, May 2018, Opus International Consultants Ltd, RDC-828920</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>* Catchment 18 Updated Assumptions:</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>+ Catchment 18 Related Reports: SW Catchment 18 Model Development Memo and System Performance Report, Jeff Booth Consulting Ltd, RDC-876679</SPAN></P></DIV></DIV></DIV>

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