GIS Database Development Arc Hydro and HSPF Visualization, Lake Jesup Basin

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GIS Database Development (Arc Hydro) and HSPF
Visualization, Lake Jesup Basin
August 2007
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Overview

• What is Arc Hydro?
• The SJRWMD Arc Hydro geodatabase
• Other WMD activity
• HSPF visualization project
• Whats next

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What is Arc Hydro?

• Primarily a geodatabase template
• GIS data infrastructure for storing and
  integrating hydro data
• Data layers and relationships
• Also tools for populating and using the
  geodatabase

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What is Arc Hydro?

• Basic entry-level version
• Network, composed of
• HydroEdges (flowlines)
• HydroJunctions (points)
• Waterbodies
• Watersheds
• Monitoring Points
• with Relationships connecting them

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Two general construction methods

• 1. Build hydrologic network and basins from
  terrain (elevation model)

• 2. Build hydrologic network and basins from
  pre-existing sources

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SJRWMD Data model

• The Water Resources Geodatabase
• Network Feature Dataset
• Drainage Feature Dataset

Hydronetwork Junction
HydroEdge
Hydro Junction
QuadBasin
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SJRWMD Data Model

• Hydrography Feature Dataset
• Plus geometric network, relationship classes,
  attribute domains, HydroID table

Structure
SpringSeep
SW Monitoring Point
Waterbody
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Pilot Lake Jesup basin
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Why bother?

• The geodatabase design
• enables more functionality
• enforces data consistency, integration between
  layers
• Standardized format, nationally recognizable

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Stream network
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Relationships
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Other WMDs

• SWFWMD
• plan to integrate ALL modeling-related data into
  an extended Arc Hydro geodatabase, with
  customized tools for import/export, maintenance,
  etc.
• Based on detailed terrain data
• SFWMD
• The geodatabase will support major functions such
  as their SCADA system
• Based on NHD data

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HSPF Visualization project

• FY07 Project objective
• Begin development of a MSJRB decision support
  system, to include
• Construction of an HSPF visualization tool
  incorporating existing HSPF models
• Long term planning for future phases

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HSPF Visualization project

• HSPF results visualization tool
• GIS based
• For internal users

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HSPF Visualization project

• Major tasks
• Model registration tool
• Design and population of database tables
• ArcMap visualization

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Whats Next - Geodatabase

• Continue surface water work, ongoing revision
• Local data if possible
• Groundwater development
• Simplify tools

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Whats Next HSPF

• Continue Arc Map tool development
• Build repository for other HSPF models
• Use the tools

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Challenges

• Much to learn
• Complexity and detail of reach network and
  waterbodies
• NHD problems

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Questions?
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Project purpose

• Create a water resources GIS database
• that integrates
• - detailed surface water features
• - with the land surface, monitoring stations,
  and structures,
• in a manner that supports modeling and
• enables decision support systems.

Sep 2007
Oct 2006
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Arc Hydro vs. NHD ??

• What IS the difference??
• Why one and not the other??

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SJRWMD and the NHD

• SJRWMD has invested considerable resources to
  improve the 124k NHD
• Plan continue to support the NHD
• Implications ???