GIS and SMS in Numerical Modeling of Open Channel Flow

Slides:



Advertisements
Similar presentations
Terrain for the Lower Colorado River Flood Damage Evaluation Project Erin Atkinson, Halff Associates, Inc. Rick Diaz, Lower Colorado River Authority Symposium.
Advertisements

Fluidyn FLOWCOAST FLOOIL 3D Fluid Dynamics Model to Simulate Oil slick movement in coastal waters or rivers FLOOIL.
WFM 6202: Remote Sensing and GIS in Water Management © Dr. Akm Saiful IslamDr. Akm Saiful Islam WFM 6202: Remote Sensing and GIS in Water Management Akm.
Kinematic Routing Model and its Parameters Definition.
University of Wisconsin-Milwaukee Geographic Information Science Geography 625 Intermediate Geographic Information Science Instructor: Changshan Wu Department.
Using ESRI ArcGIS 9.3 Arc ToolBox 2 (3D Analyst)
Approximate Floodplain Mapping - Procedures and Approaches to Data Challenges Troy Thielen, CFM Brett Addams, CFM May 18, 2010.
Cracow Grid Workshop November 5-6 Support System of Virtual Organization for Flood Forecasting L. Hluchy, J. Astalos, V.D. Tran, M. Dobrucky and G.T. Nguyen.
Floodplain Mapping using HEC-RAS and ArcView GIS Eric Tate Francisco Olivera David Maidment
Introduction to ArcGIS Reading: “What is ArcGIS?”, ESRI Press, 2001, pp Acknowledgement: Dr Francisco Olivera developed some of the slides in this.
By Jennifer VerWest. Differences between Flat and Average/Steep Terrain Flat Terrain Steep/Average Terrain.
Processing Geospatial Data with HEC-GeoRAS 3.1
HEC-RAS US Army Corps of Engineers Hydrologic Engineering Center
Application of GIS Tools for Hydraulic Modeling
CEE 795 Water Resources Modeling and GIS Learning Objectives: Describe the HEC-River Analysis System (RAS) Model Utilize HEC Geo-RAS to import data into.
Geographic Information Systems : Data Types, Sources and the ArcView Program.
Flood Analysis of Scioto River Using HEC-RAS/GIS Converting HEC-2 Data for HEC-RAS /ArcView GIS Analysis and Inundation Mapping (A pilot using Big Darby.
HEC-RAS.
Data Input How do I transfer the paper map data and attribute data to a format that is usable by the GIS software? Data input involves both locational.
1 CEE 795 Water Resources Modeling and GIS Session #1 (some material from Dr. David Maidment, University of Texas) January 18, 2006 Learning Objectives:
Texas A&M University, Department of Civil Engineering CVEN 689 Applications of GIS in Civil Engineering Professor: Dr. Francisco Olivera Student: Brad.
GI Systems and Science January 23, Points to Cover  What is spatial data modeling?  Entity definition  Topology  Spatial data models Raster.
GIS in Water Resources: Lecture 1
Processing Terrain Data in the River Proximity Arc Hydro River Workshop December 1, 2010 Erin Atkinson, PE, CFM, GISP Halff Associates, Inc.
Hydraulic Routing in Rivers
Terrain Mapping and Analysis
Spatial data models (types)
Civil and Environmental Engineering Applications.
Lower Saluda River Instream Flow Study TWC Study Team Workshop December 11, 2007.
GIS 1110 Designing Geodatabases. Representation Q. How will we model our real world data? A. Typically: Features Continuous Surfaces and Imagery Map Graphics.
The Islamic University of Gaza Faculty of Engineering Approaches to Groundwater Modeling Conceptual Model.
Feb 2003HEC-RAS Version 3.11 Slides adapted from HEC Unsteady Flow Course Unsteady Flow Course.
by David M. Beekman and Vito A. Cimino
8. Geographic Data Modeling. Outline Definitions Data models / modeling GIS data models – Topology.
How do we represent the world in a GIS database?
Creating Watersheds and Stream Networks
CRWR-FloodMap ArcView Digital Elevation Model HEC-HMS Flood discharge HEC-RAS Water surface profiles ArcView Flood plain maps CRWR-PreProAvRAS Digital.
1 Overview of Unsteady Flow Modeling With HEC-RAS Gary W. Brunner, P.E.
Esri UC 2014 | Technical Workshop | Creating Watersheds, Stream Networks and Hydrologically Conditioned DEMS Steve Kopp Dean Djokic.
WMS Investigation: Travel Time Variability with Method, Area, and Slope Ryan Murdock May 1, 2001.
Map-Based Flood Hydrology and Hydraulics David R. Maidment Jan 10, 1998.
Creating Digital Elevation Models. What is a DEM? Raster files with specific elevation values at specific grid point locations.
INTRODUCTION TO GIS  Used to describe computer facilities which are used to handle data referenced to the spatial domain.  Has the ability to inter-
HEC-RAS Version 3.1 Overview
ArcView 3-D Analyst.
Arc Hydro groundwater data model: a data model for groundwater systems within ArcGIS AWRA Specialty Conference Geographic Information Systems (GIS) and.
Development of a High-Resolution Flood Inundation Model of Charles City, Iowa Nathan Young Associate Research Engineer Larry Weber.
SITE CHARACTERIZATION – PART 2 Building Solids Using the Horizons Method.
TransAT Tutorial Backward Step May 2015 ASCOMP
Using Photogrammetry to Generate a DEM and Orthophoto
Floodplain Management using ArcGIS and HEC-RAS
Week 1.
INTRODUCTION TO GEOGRAPHICAL INFORMATION SYSTEM
Map-Based Flood Hydrology and Hydraulics
Water-Surface Evaporation in Reservoir
DES 606 : Watershed Modeling with HEC-HMS
Using GIS to Plan for and Mitigate Flooding on Tribal Lands
Map-Based Hydrology and Hydraulics
Distributed Flow Routing
Statistical surfaces: DEM’s
Welcome to GIS in Water Resources 2017
Modelling tools - MIKE11 Part1-Introduction
Welcome to GIS in Water Resources 2009
Provo River Watershed Modeling with WMS Ryan Murdock.
Introduction to ArcGIS
The Islamic University of Gaza Faculty of Engineering Approaches to Groundwater Modeling Conceptual Model.
Welcome to GIS in Water Resources 2013
Welcome to GIS in Water Resources 2012
HEC-RAS US Army Corps of Engineers Hydrologic Engineering Center
Creating Watersheds and Stream Networks
Presentation transcript:

GIS and SMS in Numerical Modeling of Open Channel Flow Ryan Murdock November 28, 2000

SMS = Surface Water Modeling Modeling System Graphical pre and post processor for numerical surface water models

Data Collection

Detailed Stream Elevation Data DEMs not suitable Small scale TIN needed TIN representing Pecan Bayou SE of Brownwood, TX Based on 2’ elevation contour data from aerial photogrammetry

TIN of Pecan Bayou SE of Brownwood, TX

Image Data Displayed in the background For on-screen digitizing To enhance display of SMS model For model placement (with registered images)

DRG of Brownwood, TX Quad Map

Flow Data for Pecan Bayou USGS gaging station 27 mi downstream Downloaded last 3 years of data Apply max, mean, and min flows to SMS model

*More happened here than meets the eye Data Processing *More happened here than meets the eye

TIN Data Clip down data Need to convert to scatter point for SMS Very large (>200 MB), hard to work with Surface | Create Contours using Spatial Analyst Clip contours using Geoprocessing Wizard Recreate TIN using 3D Analyst Now what? Need to convert to scatter point for SMS SMS could not read my TIN directly

TIN Data

Convert TIN to Grid Theme | Convert to Grid using Spatial Analyst Grid extents based on a smaller theme Specify cell size

Convert Grid to ASCII Points Arc workstation — new name = gridascii(tingrid) SMS — import ascii points as an arc view file (.arc)

Conceptual Model and Mesh Building in SMS

Conceptual Model Created using GIS objects (map module) Constructed independently of the mesh Description of the site Geometric features (main channel and banks) Boundary of domain to be modeled Flow rates and wsels of boundary conditions Material zones (Mannings n values, etc)

Conceptual Model River boundary feature objects

Projection Challenges Built conceptual model and mesh based on registered quad image Elevation data (scatter points) based on TIN Data in different projections TIN- Albers Equal Area Quad Image- UTM

Tracing channel in GIS using TIN

Import Shapefiles into SMS

Finish Conceptual Model Redistribute vertices For good element creation Define polygons Assign meshing parameters For creating finite elements Patch desirable when direction of flow known Apply boundary conditions Flowrate and head Assign materials

Construction of Mesh Network Convert feature objects to a mesh Interpolating to the mesh (scatter point module) Renumber mesh (mesh module) Organizes node and element ordering from specified boundary condition nodestring

Finite Element Mesh

Finite Element Modeling Represent something physical with a mathematical equation Want as few elements as possible, but still represent geometries accurately Numerical model takes the conceptual model and gives results SMS has capabilities for 1, 2, & 3 D models

2D Work Mesh was set up to run FESWMS, a 2D hydrodynamic model Equations based on continuity of mass and momentum Depth-averaged flow (downstream & cross-stream) Input model parameters (eddy viscosity, n, etc.) Model crashed Not a push button exercise

1D Modeling Given position 1, find head and velocity at position 2 Balance energy at each cross section Conservation of continuity & momentum Cross-section averaged flow

Near Future Work Perform an advanced WSPRO analysis on the mesh WSPRO is a one dimensional water surface profile computation model Assumes flow normal to cross sections, steady state conditions, flat wsel across cross section Examine results (depths and velocities) based on a few different characteristic flowrates at various cross sections Refine roughness/land use estimates