Waikato stormwater runoff modelling guide / prepared by: Earl Shaver (Aqua Terra International Limited) ; for Waikato Regional Council.

By: Shaver, Earl [author.].
Contributor(s): Waikato (N.Z.). Regional Council (2011- ) [issuing body.].
Material type: materialTypeLabelBookSeries: Waikato Regional Council technical report: 2018/02.Publisher: Hamilton [New Zealand] : Waikato Regional Council, 2018.Description: 1 online resource : illustrations (some colour).Subject(s): RUNOFF | MATHEMATICAL MODELS | WAIKATO | NEW ZEALAND | RAINFALL | RAINFALLS | STORMWATER | ENVIRONMENTAL ASPECTS | CONTAMINATED SEDIMENTS | SUBSURFACE DRAINAGEHoldings: ELECTRONIC Online resources: TR 2018/02 Waikato Regional Council website | Waikato stormwater runoff modelling guide. NIWA document server | Waikato stormwater runoff modelling guide. National Digital Heritage Archive Open Access
Contents:
1 Background -- 1.1 Basis for the design approach -- 1.2 Hydrological modelling software -- 2 Analytical overview -- 3 Limitations of the model -- 4 Rainfall data -- 4.1 Temporal pattern -- 4.2 Design rainfall depth -- 4.3 Climate change -- 4.4 Areal reduction factors -- 5 Estimating runoff -- 5.1 Retention parameters -- 5.2 Curve numbers -- 5.3 Hydrological soil groups -- 5.3.1 Dual classification -- 5.3.2 Hydrologic soil group assignment -- 5.3.3 Site soil testing to determining hydrologic soil group -- 5.4 Land use cover parameters -- 6 Runoff calculations -- 6.1 Unit hydrograph -- 7 Time of concentration -- 7.1 Sheet and shallow concentrated flow -- 7.2 Concentrated network flow -- 7.2.1 Time of road channel flow -- 7.2.2 Time of pipe network flow -- 7.2.3 Open channel flow -- 7.3 Catchment flow -- 7.4 Alternative equations -- 8 Analysis -- 8.1 Incorporation of Ia retention in runoff peak and volume calculations -- 9 Examples -- 9.1 Case study 1 -- 9.2 Case study 2 -- References -- Appendix A: Runoff curve numbers -- Appendix B: Worksheets.
Summary: This is one of two guidelines that address stormwater management: •Waikato stormwater management guideline (TR2018/01) and •Waikato stormwater runoff modelling guideline (TR2018/02). The Waikato Stormwater Runoff Modelling Guideline is based on Auckland Council’s Technical Publication 108 (TP108) Guidelines for stormwater runoff modelling in the Auckland region (Auckland Regional Council, 1999) and replaces use of this guideline in the Waikato region.
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"29 June 2018."

Document #: 11853936

Peer reviewed by: Megan Wood (Wainui Consulting Limited), Duncan Grant (Waikato Regional Council). Date June 2018.

Approved for release by: Matthew Davis (Waikato Regional Council). Date June 2018.

Hypertext links contained in the archived instances of this title may not be functional.

Includes bibliographical references.

1 Background -- 1.1 Basis for the design approach -- 1.2 Hydrological modelling software -- 2 Analytical overview -- 3 Limitations of the model -- 4 Rainfall data -- 4.1 Temporal pattern -- 4.2 Design rainfall depth -- 4.3 Climate change -- 4.4 Areal reduction factors -- 5 Estimating runoff -- 5.1 Retention parameters -- 5.2 Curve numbers -- 5.3 Hydrological soil groups -- 5.3.1 Dual classification -- 5.3.2 Hydrologic soil group assignment -- 5.3.3 Site soil testing to determining hydrologic soil group -- 5.4 Land use cover parameters -- 6 Runoff calculations -- 6.1 Unit hydrograph -- 7 Time of concentration -- 7.1 Sheet and shallow concentrated flow -- 7.2 Concentrated network flow -- 7.2.1 Time of road channel flow -- 7.2.2 Time of pipe network flow -- 7.2.3 Open channel flow -- 7.3 Catchment flow -- 7.4 Alternative equations -- 8 Analysis -- 8.1 Incorporation of Ia retention in runoff peak and volume calculations -- 9 Examples -- 9.1 Case study 1 -- 9.2 Case study 2 -- References -- Appendix A: Runoff curve numbers -- Appendix B: Worksheets.

This is one of two guidelines that address stormwater management:
•Waikato stormwater management guideline (TR2018/01) and
•Waikato stormwater runoff modelling guideline (TR2018/02).

The Waikato Stormwater Runoff Modelling Guideline is based on Auckland Council’s Technical Publication 108 (TP108) Guidelines for stormwater runoff modelling in the Auckland region (Auckland Regional Council, 1999) and replaces use of this guideline in the Waikato region.

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