Read Introduction to XP-SWMM by Anthony Kuch, MSc(Eng) text version

Watershed Delineation & Hydraulic Modeling

Using WMS with the Stormdrain Link to exchange data with XPSWMM 1

Presenter

· Colby T Manwaring, P.E.

· · · · President ­ XP Software, Inc. B.S., M.S. Civil & Environmental Engineering Computational methods and numerical modeling of hydrologic & hydraulic processes [email protected]

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Presentation Outline

· Overview of XPSWMM and WMS · Why use both? · How to send a WMS model to XPSWMM

· · · · Overview of WMS tools for watershed modeling Stormdrain Link (XPX file transfer) Overview of XPSWMM tools for watershed modeling Shapefile transfer

· How to send an XPSWMM model to WMS

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XPSWMM

· State-of-the-art software for storm and wastewater management modeling software · Comprehensive modeling system encompassing a graphical user interface (GUI) and an analytical engine

­ CAD/GIS type interface and data management tools ­ Analytical engine is based on EPA SWMM and contains numerous proprietary enhancements ­ 2D analytical engine TUFLOW embedded as xp2D Module

· Simulation Modes

­ Hydrology ­ Hydraulics ­ Sanitary

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XPSWMM Hydrology

· Catchment delineation (digitize or import polygons) · 15 Hydrologic Methods

· · · SWMM Runoff; Rational Method; Kinematic Wave; SCS Unit Hydrographs ­ SBUH; Snyder; Clark; Time Area; Nash Regional Methods - LA County Method; CUHP; Alameda

County; Sacramento Co.

· Hydrologic Parameter input is manual entry or database import

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WMS

· Watershed Modeling System is comprehensive graphical modeling environment for all phases of watershed hydrology and hydraulics. · Tools to automate modeling processes such as:

­ automated catchment delineation, ­ geometric parameter calculations, ­ GIS overlay computations

· Modeling is handled by a GIS-based data processing framework

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WMS Hydrology

· Catchment delineation

­ Automated from DTM (grid or TIN) ­ Manual control/override is possible ­ Geometric parameters automatically computed (slope, length, area, longest flow path length, etc.)

· GIS overlay computations

­ ­ ­ ­ Runoff coefficients SCS Curve Numbers % Impervious Etc.

· Advanced hydrologic models

­ HEC1/HEC-HMS; NFF; TR-20/55; MODRAT; HSPF

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Relative Strengths/Weaknesses

· XPSWMM

­ Integrated Hydrology, fully dynamic 1D Hydraulics, fully dynamic 2D Hydraulics ­ Single interface to computational engine ­ Robust hydraulic calculations ­ Water quality calculations ­ Hydraulic results reporting/animation

· WMS

­ ­ ­ ­ Automated delineation Geometric parameter calculation GIS overlay calculations of hydrologic parameters Advanced hydrologic models

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WMS Model => XPSWMM

1. Create watershed model (outlets, streams, sub-basins) 2. Hydrologic Modeling

1. 2. Compute hydrologic parameters Compute hydrologic modeling results (peak flows or hydrographs)

3. Create Stormdrain layer (links/nodes) 4. Send model directly to XPSWMM through XPX file transfer 5. Complete hydraulic modeling in XPSWMM

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XPSWMM Model => WMS => XPSWMM

1. Create hydrologic schematic in RUNOFF layer (nodes/links) 2. Send RUNOFF layer to WMS through GIS Export (shapefile) 3. Delineate catchments and compute hydrologic parameters 4. Send back to XPSWMM

1. 2. Send catchments back to XPSWMM through GIS Export (shapefile) Send hydrographs back to XPSWMM thtough Stormdrain link or copy/paste

5. Complete hydraulic modeling in XPSWMM

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Watershed Delineation & Hydraulic Modeling

Using WMS with the Stormdrain Link to exchange data with XPSWMM 11

Information

Introduction to XP-SWMM by Anthony Kuch, MSc(Eng)

11 pages

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