FloodPro Disseminating Floodplain Information to the Public

By Kevin Smith, GISP

Transcript

1. FloodPro Disseminating Floodplain Information to the Public. Kevin Smith, GISP City of Austin, Watershed Protection
2. v City of Austin Needs v Program History v Components •  Desktop Tools •  Web Viewer v Lessons Learned Overview
3. City of Austin’s Needs v Automate the Delivery of Floodplain Information Requests. •  Approximately 1,650 Requests Annually v Organize Data •  Over 250 GB of Models and Spatial Data •  Covers Multi-County Region
4. Travis  County   Aus/n  full   purpose  
5. v Originally, Conceived in the Late 1990s •  An effort to leverage the City’s burgeoning Geospatial Data. v Technology was not at the Necessary Level. •  City’s Recordkeeping System •  Web Technology •  Online Forms •  ArcIMS Program History
6. Comprised of two main parts: v ArcGIS Desktop Based Tools v Geoprocessing Tools v FME v Web-Based GIS Viewer v ArcGIS Server v Custom Python Scripts FloodPro
7. Desktop Based Tools
8. ESRI Developed Geoprocessing Tools and FME Workbench. v  Stock Geoprocessing tools and custom programming. • ArcGIS Version 10 Geoprocessing Tools • Custom Tools Written in Python Version 2.6 v Three FME Workbenches. • Safe Software’s FME 2011 Desktop Based Tools
9. Desktop Based Tools Workflow Geo- RAS Data Elevat- ion Data Desktop Tools Elevat- ion Deriva- tives Parcel Level Data Digital Flood Data FME Process FME Out- put Desktop Tools Parcel Flood Status Feature Class
10. Generally, There are Two Sets of Tools v Elevation Data Processing • Geo-RAS output from hydraulic engineering models • Elevation data from LiDAR v Attribute Population • FME Output • Output from elevation data processing Geoprocessing Tools
11. The Desktop Processing Tools are made up of over 20 tools and scripts.
12. v Stands for Feature Manipulation Engine v Produced by Safe Software, headquartered in Vancouver, Canada. v A data transformation technology that assists organizations with Data Interoperability •  FME Was used in lieu of the ArcGIS Data Interoperability Extension. What is FME?
13. FloodPro Consists of Three FME Workbenches: v Parcel Flood Status (PFS) v Call PFS Workspace v PFS Update FME Workbenches
14. v Parcel Flood Status (PFS) •  This is the main workspace. All the “Magic” happens here. v Call PFS Workspace •  Due to FME’s non-linear processing time, this workspace allows for batch processing. The batch processing allows for greater efficiency. v PFS Update • Allows for incremental updates FME Workspaces
15. PFS FME Workbench
16. Parcel Flood Status Feature Class
17. v What Will an Update? •  Updated parcel information. •  New engineering models •  New terrain data v PFS Update •  Used in the instances of new engineering models. •  Might be able to use new parcel information. Maintenance
18. Webviewer
19. v Virtual Machine Webserver •  Dual Core Xeon 3.07GHz •  8 GB RAM •  1GB Network Connection v Microsoft Silverlight 4.1 Interface •  Custom programming provided by ESRI and City of Austin’s Communications and Technology Group. v ArcGIS Server 10 Webviewer Components
20. Web Interface
21. The Intuitive Tab Based Interface Provides Two General Functionalities: v Floodplain Information v Flood Early Warning System(FEWS) information Web Interface
22. v Flood Zone Information v Water Surface Elevations v Engineering Floodplain Models • Hydraulic and Hydrologic models • Supporting data including Spatial Data v Letter of Map Change Information v Elevation Certificates Floodplain Information
23. v Flood Zone Information v Water Surface Elevations v Engineering Floodplain Models • Hydraulic and Hydrologic models • Supporting data including Spatial Data v Letter of Map Change Information v Elevation Certificates Floodplain Information
24. Flood Zones v FEMA •  For Flood Insurance Purposes v Fully Developed •  For Development Regulation Purposes Ø  Both Require Water Surface Elevation, the Height of the Water During a Given Storm Event (1% etc.) Flood Zone Information
25. Flood Zone Information
26. Shopping Cart Method of Delivery to Facilitate Model Download. v Provides Interface to Search by Address, Tax ID Number, Watershed Name and Geographic Location. v Allows for the Download of: • Hydraulic and Hydrologic Models (both FEMA and Fully Developed) • Supporting and Spatial Data Engineering Models
28. v Letters of Map Change •  Provides Easy Access to FEMA’s LOMA and LOMR Information, by Searching Tax ID Number or Address. •  Provides Relevant Information and Link to FEMA’s Map Service Center. v Historic FEMA Information • Allows for Flood Insurance rate Grandfathering. Letter of Map Change/Historic FEMA Elevation Information
30. v Elevation Certificates • Used by surveyors and homeowners primarily for finished floor elevations. • Searches City of Austin’s Database That Contains Over 2,000 Records • If Copy is Available, user can download PDF copy. Elevation Certificates
32. v Rain Gauge •  Approximately 120 Gauges v Stream Flow Data •  Approximately 40 Locations Flood Early Warning System
33. v Standardize file structure as well as data and files names to facilitate data delivery. v  Streamline workflows for greater efficiencies. v Process automation through batching and scripting. v Technology is always changing. v The end product might not resemble the original vision. v  Be flexible. Lessons Learned
34. Questions?
35. FloodPro