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Arc Hydro for the Watershed Management Program at the Southwest Florida Water Management District . Presenters: Gordon McClung, P.E. Diana Burdick Jamison Janke, E.I. Nam Nguyen, E.I. Arc Hydro and GIS Implementation. Developed the SWFWMD’s Guidelines and Specifications for the

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slide1

Arc Hydro for the Watershed Management Program

at the

Southwest Florida Water Management District

Presenters:

Gordon McClung, P.E.

Diana Burdick

Jamison Janke, E.I.

Nam Nguyen, E.I.

slide2

Arc Hydro and GIS Implementation

  • Developed the SWFWMD’s Guidelines and Specifications for the

establishment of standardized procedures for the

Watershed Management Program and GIS (ArcInfo - ESRI)

database for storing/maintaining data.

    • Coverage/shapefile
    • Related tables
    • Establishes data standards for data acquisition, spatial

identification and storage of data.

slide3

Arc Hydro and GIS Implementation

  • September 2002 – March 2003:
    • Internal requirements analysis
  • March 2004:
    • Database design workshop
    • Application prioritization workshop
    • Critical tools overview
  • December 2004
    • Database Design
    • Begin loading Database
  • February 2005
    • Tools Delivered
    • Begin Testing on Small Watersheds
  • Spring/Summer 2005
    • Migrate to ArcGIS Version 9
  • Current
    • Revisions to database design
    • Standardization of terminology
    • Identification of workflow
slide4

Arc Hydro Database Design

4 feature datasets

21 feature classes

29 object classes

Domains/relationship classes

slide5

Arc Hydro Database Design

Database design issues:

  • Reviewed current coverage/shapefile format for migration to GDB
  • “Enterprise” maintains the current environment while project

information is maintained by PGDBs.

    • Index layer maintained in Enterprise that points to project

PGDB location

slide6

Arc Hydro Application Development

Four “critical” tools identified:

  • Management of HydroID between PGDB and SDE
  • GeoRAS import/export from PGDB/SDE to define future

import/export tools

  • Ingest of OneRain data
  • Internally drained connectivity
slide8

Arc Hydro and GIS Implementation

Other activities:

  • Development of ArcMap template for current projects so

migration to geodatabase easier

  • Testing and training
  • Coordinating with ESRI for terrain data in geodatabase
  • Implementation of historical 15 minute OneRain data from 1993
lidar
LiDAR

SWFWMD Import of Terrain deliverables into GDB format

Dealing with .5 to 1.5 million points per Sq. Mile

terrain geodatabase
Terrain Geodatabase

Current Terrain = Coverage and TINS

Future with Terrain Geodatabase = GeoDatabase Feature Dataset and Terrain

workflow and initial gis layers
Workflow and Initial GIS Layers

NWI

Aerial

Roads

Soils

Water

slide13

Terrain – DEM or TIN

5 feet cell size raster

slide16
Connectivity – A hydronode, in pink, is placed here manually identifying a hydraulic structure during Watershed Evaluation phase
hydraulic elements
Hydraulic Elements

HydroElementID = 118

NodeID = 7

HydroElementID = 119

NodeID = 7

HydroElementID = 117

NodeID = 7

HydroNode

HydroID = 7

Culvert

NodeID = 7

HydroID = 119

Culvert

NodeID = 7

HydroID = 117

Culvert

NodeID = 7

HydroID = 118

HydroElementID = 117

NodeID = 7

HydroElementID = 119

NodeID = 7

HydroElementID = 118

NodeID = 7

HydroNode identifies a structure.

The structure is made up of multiple hydraulic elements.

Hydraulic Elements are made up of multiple hydropoints.