arc hydro and water resources...arc hydro and water resources: an integrated approach to water...
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Arc Hydro and Water Arc Hydro and Water Resources: Resources:
An Integrated Approach to Water An Integrated Approach to Water Resource Data ManagementResource Data Management
Mark Nelson, P.E., GISP
Introductions
Mark Nelson, P.E., GISP Vice-PresidentMatt Terella, Project ManagerMaria Martinez, Project Manager
Jones Edmunds
Established in 1974~300 people– Over 20 GIS Professionals– Over 50 Water Resources Professionals
Four Florida Offices (& Sarasota)
GIS/WR Clients – St. Johns, Sarasota, Marion, Pasco,
Pinellas, Charlotte, and Collier and Lee Counties
– St. Cloud, Leesburg, Gainesville, and Palm Coast
– SJRWMD, SFWMD and SWFWMD
Overview
Arc HydroStormwater Infrastructure Data ManagementWatershed Management Planning– GIS centric watershed management planning– Workflow and SOPs– Arc Hydro (geodatabase and tools)– Typical modeling steps
Example Projects
Arc Hydro?
GeodatabaseTools
Why Arc Hydro?
Manage and maintain data quickly, efficiently & accurately
Automate tedious & time consuming tasks
Cut costs
“Visualize” hydrologic features
Communicate data and concepts
Multiple Uses for Drainage Infrastructure Data
Arc Hydro Uses
Operations & Maintenance:
•Location
•Condition
•Preventative maintenance
•Capital Improvement Planning
•Enterprise Asset Management
•Work Order Management
Engineering:
•Modeling
•Stormwater Master Planning
•Capital Improvement Planning
Common Data – Different Scales
Managing stormwater– Infrastructure– Hydrologic &
Hydraulic Modeling
Arc Hydro Geodatabase
Infrastructure versus Modeling
Stormwater Infrastructure Geodatabase
Arc Hydro Modeling
Geodatabase
Stormwater Model (ICPR, HEC, etc)
Stormwater Infrastructure Geodatabase
Sarasota County Stormwater Infrastructure Geodatabase
SFWMD Arc Hydro / AHED
SFWMD Arc Hydro Enhanced Database
HydroperiodEstimation
Operations Decision Support
System
RegionalSimulation
Model
FloodHydrology
&HydraulicsDatabase of record for
hydrologic feature locations within the SFWMD area of interest.
Central enterprise database– Oracle– ArcSDE– Maintained by GIS
and Web Development Division.
– Multi-year project: pilot, prototype, and production.
– Production within the SFWMD network.
SFWMD Arc Hydro
Arc Hydro Modeling Geodatabase
Arc Hydro, LiDAR, and Watershed Management Planning
Arc Hydro (tools) and LiDAR are the foundation of WMPArc Hydro Geodatabase is becoming defacto standard for storing and managing WMPs– Centralized– Portable– Promotes updating (terrain changes / growth)
SWFWMD Arc Hydro
Primary driver FEMA Map Modernization– SWFWMD CTP
GWIS (Geographic Watershed Information System)
GIS-Centric Watershed Management Planning
SWFWMDMarion CountyPinellas CountySarasota CountySt. Johns CountyPalm Coast
Arc Hydro Tools
Set of tools used to automate/streamline engineering workflow for watershed parameterizations
Starting point: Terrain and Arc Hydro -ready mdb
Typical JE WMP Steps
Catchment delineation– DEM creation– Sinks– FDIR– FAC– Stream definition and segmentation– Catchment delineation
Field recon and survey– Geodatabase checkout– Direct parameter input– Survey plan developed
Model parameterization– Finalize model schematic– Hydrologic parameterization (Tc, CN, EMCs, DCIA, etc)– Hydraulic parameterization
Channel polygon exclusionsCross-section extensions/blending (survey and LiDAR)Stage/area/volumeCross-section extraction and thinning\Initial conditionsLink entrance and loss coefficients
Model development, calibration and verification– Initial conditions floodplain– Geodatabase tables to model– Calibration using NEXRAD and other watershed data– Model results to geodatabase– Floodplains– Pollutant loading
Alternatives analysis Results and recommendations
Modeling Geodatabase / Directory
Data Source?
Raw LiDAR(LAS)
Digitized Contours and Spots
Aerial Photographs
National Topo(USGS 5')SWFWMD Basin Polygons
Is study basin greater than 3mi2?
Compress to SID
QC/QA with cooperator basemap
Planning Basin Delineationwith Buffer
Clip Source Data for Study AreaPre DTMBreaklines Points
3D Analyst(reference G&Sprocedures) TIN DTM
Spatial Analyst(decide resolution) Raster DTM
N
Cartographic Contours from LIDAR
Raster Catalog/ Raster Dataset
Spatial Analyst DTMLINEFeatures
Modeling Geodatabase / Directory
TSDN report and directories
Modeling Geodatabase / Directory
HydroTools
Model Schematic
Survey NeedsPre-Screen Name ModelAssign HYD-ID’s Survey Needs
Modeling Geodatabase / Directory
Field Recon
TSDN report and directories
QA/QCHydroTools Hydraulic Element
Evaluate
HydroTools
Hydrologic ParametersHydraulic Parameters
ICPR Models
Y
Verify Model
Calibrate Model
HydroToolsDraftFloodplains
Model QA/QC ReviseModel
Final Floodplains
Design Storm
Doppler Rainfall
Problem Area
Evaluation Report
Feature Forms
Problem Area Reports Alternatives LOSAnalysis Recomendations
Modeling Geodatabase / Directory
TSDN report and directories
Modeling Geodatabase / Directory
DFIRM Database
DFIRM Panel
Survey Certification
Feature Photographs
Determine Project Area Extents
National Topo(USGS 5')SWFWMD Basins
NHD Basins
Which tasks to be included?
Extent and Numberof Problem Areas
SWFWMD Budget
What Data are Available
Hydraulic Elements Table Model Data
GIS Model DataTerrain (LiDAR, Contours, Breaklines)
Topographic Replacements
Topo Voids Areas
Replacement Elevation Data
Cooperating Partner
Replacement Elevation Data
BMPAreas
Determine Engineering PMand GIS lead
Determine Sub-consultants
Estimate Model Elements (number and difficulty)
Hydraulic Element
Choose Watershed Model(s)
Catchments
Application Development
Develop Draft WO and Budget
Review with PM and GIS Negotiate with SWFWMD
Assemble Project Team(Engineers, Analysts, Stewards, Programmers)
Kickoff meeting
Create Project Files / Add to Server
Project Documents
Topographic Replacement(Model Builder application)
Topo Voids New Elevation Data
Breaklines
Initial Model Runs
Sarasota County Arc Hydro
Infrastructure Asset ManagementStormwater Development ReviewWatershed Management Planning
St. Johns and Marion County Arc Hydro
Countywide Stormwater Modeling– Growth
management – Land Development
Regulations– Data maintenance
Arc Hydro Demo
