Paper/Poster/Presentation Title

Automated Flood Risk Communication

Keywords

Hydrodynamic model; flood inundation maps; flood damage; flood frequency; flood insurance

Start Date

27-6-2018 2:00 PM

End Date

27-6-2018 3:20 PM

Abstract

Automated Flood Risk Communication

George Smith

Riverside Technology, Inc. (george.smith@riverside.com)

Sean McFeely

Riverside Technology, Inc. (sean.mcfeely@riverside.com)

Abstract: Unlike traditional hydrodynamic models, FLDPLN has no dynamic, or time dependence. It is a static model driven purely by topographic data. A static floodplain characterized by a floodwater depth is similar to a sustained flood inundation extent. It is made dynamic in execution. FLDPLN computes a range of flood depths from a base flood elevation for one or more stream segments in a floodplain. The results are stored for quick access to estimate flood inundation. Currently, six FLDPLN models for riverine urban drainages have been developed and integrated into a mapping system. The system creates and displays flood inundation maps for historical events, simulations and near real-time conditions based on USGS and NWS river gage stage heights. This study specifically seeks to automate a process to determine a range of flood stage heights for a given structure in a floodplain, relate the stage heights to flood frequency and damage and output a customized flood risk report. The goal of the report is to help home owners and home buyers better understand flood risk and feel more informed and confident about flood insurance decisions. The long-term goal of the study is a quick and affordable methodology to enhance and supplement existing flood risk communications for citizens, home owners, home buyers, realtors, insurance companies and governmental agencies around the world.

Keywords: Hydrodynamic model; flood inundation maps; flood damage; flood frequency; flood insurance

Stream and Session

C11: Integrated Methods and Tools for Flood Risk and Water Supply Management

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Jun 27th, 2:00 PM Jun 27th, 3:20 PM

Automated Flood Risk Communication

Automated Flood Risk Communication

George Smith

Riverside Technology, Inc. (george.smith@riverside.com)

Sean McFeely

Riverside Technology, Inc. (sean.mcfeely@riverside.com)

Abstract: Unlike traditional hydrodynamic models, FLDPLN has no dynamic, or time dependence. It is a static model driven purely by topographic data. A static floodplain characterized by a floodwater depth is similar to a sustained flood inundation extent. It is made dynamic in execution. FLDPLN computes a range of flood depths from a base flood elevation for one or more stream segments in a floodplain. The results are stored for quick access to estimate flood inundation. Currently, six FLDPLN models for riverine urban drainages have been developed and integrated into a mapping system. The system creates and displays flood inundation maps for historical events, simulations and near real-time conditions based on USGS and NWS river gage stage heights. This study specifically seeks to automate a process to determine a range of flood stage heights for a given structure in a floodplain, relate the stage heights to flood frequency and damage and output a customized flood risk report. The goal of the report is to help home owners and home buyers better understand flood risk and feel more informed and confident about flood insurance decisions. The long-term goal of the study is a quick and affordable methodology to enhance and supplement existing flood risk communications for citizens, home owners, home buyers, realtors, insurance companies and governmental agencies around the world.

Keywords: Hydrodynamic model; flood inundation maps; flood damage; flood frequency; flood insurance