Name: 100 year CC Extent

Display Field: Catchment

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: A TUFLOW hydraulic model was developed to simulate flood response across the Raupo Drainage Scheme in Kaipara District. This includes the town of Ruawai and surrounds, which are protected from the Wairoa River with a series of stopbanks and floodgates. These structures were included in the model, which was simulated for design events including the 1% (100 year), 2% (50 year), 10% (10 year) and 20% AEP (5 year), as well as the 1% AEP with Climate Change (100 year + CC) using a rainfall-on-grid approach.The model outputs are able to identify the potential flooding extents, depths and velocities and can be used to assess the impact on the built environment, infrastructure, and community as well as, subsequently, aid in the development of effective mitigation measures.This layer is the 100 year + CC (climate change) extent river flood hazard polygon output from the model.Other Details:Name of the layer in sde: GISADMIN.Ruawai_RiverFloodHazardZone_100yr_19thDec2024Data provided by: Nicole Basher (Rivers and Natural Hazards) Data Published by: Divya Published on: Feb 2025

Service Item Id: 25ff899dca954790b5d0ca53a9ba6df5

Copyright Text: Water Technology, NRC, KDC

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MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

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Extent:

XMin: 1686300.0
YMin: 5995605.0
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Spatial Reference: 2193  (2193)  LatestVCSWkid(0)

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Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Catchment ( type: esriFieldTypeString, alias: Catchment, length: 254 )
• ModelID ( type: esriFieldTypeString, alias: Model ID, length: 254 )
• PublishedYear ( type: esriFieldTypeInteger, alias: Year )
• StormDuration ( type: esriFieldTypeString, alias: Storm Duration, length: 254 )
• Hazard ( type: esriFieldTypeString, alias: Hazard, length: 254 )
• Consultant ( type: esriFieldTypeString, alias: Consultant, length: 254 )
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Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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