Using Arc Hydro in Florida - CLAS Usersusers.clas.ufl.edu/mbinford/GEO5159_GIS_Environmental/...1...
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Using Arc Hydro in FloridaUsing Arc Hydro in Florida
Alan Foley, P.E.September 8, 2008
Overview
Introductions Project drivers What is Arc Hydro? Arc Hydro in Florida
– The beginnings – Innovations and evolution– Considerations
What’s next?Note: some content in this presentation was obtained from SFWMD,SWFWMD, SJRWMD, ESRI, Dr. David Maidment, and other web-based unknowns.
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Introductions
Alan Foley Jones Edmunds
– Medium Sized Consulting Firm– Work throughout Florida (offices in Gainesville,
Jacksonville, Tampa, Titusville)
– Work primarily for public agencies (Counties, Cities,
WMDs, …..)
Class introductions/interests
Waters Resources Projects
Study – typical precursor to design– Watershed Assessments
Hydrology & hydraulics Water quality Water Supply
– Determine feasibility Design
– Site – stormwater ponds– Regional – mitigation areas, simultaneous fixes
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Project Drivers and Funding
- Regulations (Need)- Clean Water Act- TMDL’S- State Stormwater Regulations
- Grants (Means)- Federal (e.g. EPA)- State (e.g. WMD’s, DEP, DOT)- Stormwater utilities
- Local assessment- May fund studies that identify and fund
retrofits
Develop TMDLs
BMAPs(FDEP Implementation of TMDLs)
NDPES PERMITSCity MS4Main Street WRFKelly Power Plant
USEPA FDEPClean Water Act
1972
Wate
rshed
Res
t. Ac
t19
99
List Impaired Waters
Clean Water Act
1972
Watershed Restoration Act
Revisions in 2005
Consent Decree1999
Water Management
Districts(CUPs)
Watershed Restoration Act
1972
Regulatory Framework
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Florida TMDLs
FDEP Establishes criteria for creating TMDLs through the 2002 Impaired Waters Rule.
Participants & Work Environment
Academic– Research, Teaching, Extension
Public– City, County, State, Federal
Private– Consulting– Industry– Non-profit
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What is Arc Hydro?
Hydrography Channel Time Series
Flow
Time
Flow
Network
DrainagePoint
JunctionID
DrainageAreaAreaSqKmJunctionIDNextDownID
1Drainage
DrainageFeature
DrainID
Catchment BasinWatershed
DrainageLine
ComplexEdgeFeature
HydroJunction
SimpleJunctionFeature
HydroIDHydroCodeNextDownIDLengthDownDrainAreaFTypeEnabledAncillaryRole
EdgeType
1
Flowline
Shoreline
HydroEdge
HydroIDHydroCodeReachCodeNameLengthKmLengthDownFlowDirFTypeEdgeTypeEnabled
HydroPointEvent
Measure
HydroLineEvent
FMeasureTMeasureOffset
TimeSeries
Object
FeatureIDTSTypeTSDateTimeTSValue
HydroEvent
ReachCode
Object
CrossSection
CSCodeJunctionIDCSOriginProfileM
Object
ChannelFeature
ReachCodeRiverCode
CrossSectionPoint
CSCodeCrossMElevation
1
1..*
1
Feature
1Structure
MonitoringPoint
WaterWithdrawal
Bridge
Dam UserPoint
WaterDischarge
HydroResponseUnit
AreaSqKm
HydroPoint
JunctionID
HydroLine HydroArea
Waterbody
AreaSqKmJunctionID
FTypeProfOrigin
ProfileLine
Hydrography
FTypeName
HydroFeature
HydroIDHydroCode
HydroFeature
HydroIDHydroCode
HydroFeature
HydroIDHydroCode
HydroFeature
HydroIDHydroCode
SchematicNode
FeatureID
SchematicLink
FromNodeToNode
What is Arc Hydro?
Unique ID –HydroID Relationships– imbed the unique ID in feature classes
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Why Arc Hydro?
Manage and maintain data quickly, efficiently & accurately
Automate tedious & time consuming tasks
Cut costs
“Visualize” hydrologic features
Communicate data and concepts
What do you need for Arc Hydro?
What is GIS?
Procedures
What kind?
- An integration of five (or three) basic components
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What do you need for Arc Hydro?
Data types–Vector–Raster (Terrain)–Tabular
Data sources–Agencies–Specific studies–Florida Geographic Data Library
Arc Hydro beginnings –GIS & Surface Water Modeling
•Small groups of individuals trying to make life easier•Project-specific data•Projects up to a year in duration•Model-driven•Roots outside of Florida
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The Unique Florida Arc Hydro Experience
Florida is just “different” Arc Hydro drivers
– Hydrologic conditions– Water law– Water management– State law (purchasing)
Florida Terrain
Low-relief High
groundwater Non-dendritic
or “Deranged”
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SWFWMD Terrain & Connectivity Tools
Developed to characterize Florida terrain
For distributed use Ongoing maintenance
SWFWMD Vision for Distributed Data Maintenance
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Arc Hydro “Glue”
Unique ID –HydroID Relationships– imbed the unique ID in feature classes
Check Out
Geodataset exchange
Check In
HydroID Management:Distributed Geodatabases
SWFWMDGWIS
Unique HydroID’smaintained in Central GDB – Avoid duplicate ID’s– Maintain relationships
Unique HydroID’s also assigned in project-level GDB’s
Translate HydroID’s from project-level to central GDB
Project-level GDB
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Example: Multiple Uses for Drainage Infrastructure Data
Parallel Data Uses
Operations & Maintenance:
•Location
•Condition
•Preventative maintenance
•Capital Improvement Planning
•Enterprise Asset Management
•Work Order Management
Engineering:
•Modeling
•Stormwater Master Planning
•Capital Improvement Planning
Integrating with Asset Management
Sarasota County MaximoIntegration– Data
replication– Feeds model
maintenance
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Common Data – Different Scales
Managing stormwater data– Infrastructure– Hydrologic &
Hydraulic Modeling
“Infinite” data life
Scale: Space-Time
Features of interest may vary over space and time scales
Example: flow– Cubic feet
per second– Million
gallons per year
Neighborhood
Watershed
Structure
Region
Space
Tim
e
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1:1200 scale1:1200 scale
United States1:500,000 scale1:500,000 scale
River Basin1:100,000 scale1:100,000 scale
Watershed1:24,000 scale1:24,000 scale
River reach
Point scalePoint scale Structure
1:1,000,000 scale1:1,000,000 scaleNorth American
and Global
Mapping Scale
Rainfall & SnowWater quantity and quality
Remote sensing
Different Types of Water Data
Meteorology
Soil water
Modeling
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How can hydrologists integrate observed and modeled data from various sources into a single
description of the environment?
Water Data & Data Uses
Arc Hydro Evolution
Hydrologic Information System– Hydrologic data– Data manipulation tools– Simulation models
Watershed Modeling
ArcHydro Geodatabase
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Digital WatershedHydrologic Observation
Data
GeospatialData
Weather and ClimateData
Remote SensingData
(NetCDF)
(GIS)(Relational database)
(EOS-HDF)
Digital Watershed
A digital watershed is a synthesis of hydrologic observation data, geospatial data, remote sensing
data and weather and climate data into a connected database for a hydrologic region.
SFWMD AHEDSWFWMD GWIS
Scale: Data-Users
The more usable and available data becomes, the greater the number of users and transactions.
IT considerations become significant.
Interdisciplinary teams are required.
Personal
Enterprise
Web
Number of users
Num
ber
ofDa
ta tr
ansa
ctio
ns
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Scalable Multi-User Environment
StandardData Models
GIS InternetServices
GIS Functions
LongTransactions
Spatial QueryLanguage
Work FlowDissemination
Transactions
Spatial Data Types
Applications
Arc Hydro at the SFWMD
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.
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Arc Hydro at the SFWMD
Central enterprise database– Oracle– ArcSDE– Maintained by GIS and Web Development
Division.– Multi-year project: pilot, prototype, and
production.– Production using external resources
accessing the SFWMD network.
Enablers: Data Standards
Feature Representation in GIS
Point Classes: discreet x,y locations
– Drop Structures– End Treatments– Network Structures
Line Classes:linear features having length
– Gravity Mains (pipes)– Open Channels
Polygon Classes:features having area & perimeter
– Stormwater Facilities– Easements
point
linepolygon
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Enablers: Environments
Planned for 4 SDE instances in 2 environments with a schema change control process– Allows change over time– Allows ongoing development
Enablers: Work Flows
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Enablers: Defined Roles & Responsibilities
Subject Matter Experts Database Owner Database Editor Data Steward
Production
Testing & development
instances
Replicated Data Management
HydroID Management:Central Geodatabase
Unique HydroID’smaintained in Central GDB – Avoid duplicate ID’s– Maintain relationships
No HydroID translation All users/editors on the
same network
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Other Project Examples
Project data review– Different GDB approaches– Terrain and tool limits Below-ground infrastructure Obscured areas
Time Series Data Storage Concepts
Space, L
Time, T
Variables, V
D
“What”
“Where”
“When”
The “Data Cube” – a simple data model
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Space, FeatureID
Time, TSDateTime
Variables, TSTypeID
TSValue
Discrete Space-Time Data ModelArcHydro
Time series data requires significant storage space
Time-Series Databases
CUAHSI observation data model (ODM)
Designed to optimize data retrieval for integrated analysis of information collected by multiple investigators
SQL statements created and made available to facilitate analysis
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What Has Worked So Far?
Arc Hydro storage of Florida Data– Schema modification– Tool development Data development Data analysis
Knowledge management With Arc Hydro Data– Decision support
Beginning community development
What Hasn’t Worked – yet?
Areas that could use more thought…– Distributed data development– Scale reconciliation– Arc Hydro community development– Standards Data Programming
– “Comprehensive” education University On-going professional
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What’s Next?
Groundwater Other pieces of the hydrologic cycle Web services Community Driven
– Growing user base– Increasing knowledge– Building consensus
What’s Next?
Florida Arc Hydro Users Group – FLAHUG– Related to FL Arc Hydro
Working Group – FAHWG– Focused on training and
education– Public, private, academic– http://www.flahug.org/
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Other Considerations
Understand your data sources, processes, and products! Define your space and time scale of
interest (including acceptable error) – this will guide decisions on data, processing, and infrastructure needs.
Questions
Alan Foley, [email protected]
352.377.5821