fema-usgs riverine hazus project h. e. “gene” longenecker, iii senior physical scientist, fema...

FEMA-USGS Riverine Hazus Project

H. E. “Gene” Longenecker, III

Senior Physical Scientist, FEMA Modeling Task Force

FEMA Lab Risk Analytics Stakeholder Meeting

Monday, July 27, 2015

H. E. “Gene” Longenecker, III

Senior Physical Scientist, FEMA Modeling Task Force

FEMA Lab Risk Analytics Stakeholder Meeting

Monday, July 27, 2015

herbert.longenecker@fema.gov

Overview

• Background: CFLA, DART• Web-Based Riverine Hazus• Live demonstration• Links

herbert.longenecker@fema.gov

1927 Mississippi River flooding

herbert.longenecker@fema.gov

Background

• Compilation of rapidly-accessible deterministic inundation maps and corresponding losses

• Coastal Flood Loss Atlas – hurricane storm surges from NHP/NHC SLOSH modeling

• NOAA PMEL MOST modeling• Forecast Inundation Modeling (reference grids)• DART buoys (gage/observations)

• Why not do this for river gages?

herbert.longenecker@fema.gov

DART Tsunami Monitoring

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DART Process

DART Buoy Observation

FIM Reference Grid

Est. Propagation

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DART Schematic

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Web-Based Riverine Hazus

• Collaborative effort primarily between FEMA R4 and USGS Eastern Geographic Science Center, also includes NWS (AHPS inundation sites)• NWS forecasts/hydrology for stage height and flow• USGS river gage locations• FEMA Hazus analyses• Originally 2 sites, then 60, now several hundred

• Results maintained in USGS static inundation databases and web mappers

herbert.longenecker@fema.gov

Web-Based Riverine Hazus• Coordinating with

USGS, NWS, and USACE, R-IV conducts Hazus analyses for numerous NWS river forecast centers nation-wide.

• USGS programs results for web application and use.

herbert.longenecker@fema.gov

July 1994 Flooding in Albany, GA

• 17 inches+ of rain from TS Alberto• Hundreds of millions in damages• ~23,000 people evacuated

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Web-Based Riverine Hazus

• First demo web app rolled out for Albany, GA in 2011

• Prototype national web app expanding rapidly due to interest from state/local EMs

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Web-Based Riverine Hazus

• Current app displays:

• Inundation polygons at 1-foot intervals up to historic flood stage;

• Hazus loss estimations in polygon format;

• Hazus loss estimation reports;

• Soon to be linked to NWS AHPS…

herbert.longenecker@fema.gov

Web-Based Riverine Hazus

herbert.longenecker@fema.gov

Web-Based Riverine Hazus

herbert.longenecker@fema.gov

Websites

• NWS AHPS Albany, GA inundation site:• http://water.weather.gov/ahps2/inundation/inundation_google.php?g_datatype=depth&wfo

=tae&gage=abng1

• Web Map App for Iowa City, IA (level 2+ Hazus integration):• http://wim.usgs.gov/FIMI/FloodInundationMapper.html?siteno=05454500

• USGS Flood Inundation Mapping Webpage with project schematics:• http://water.usgs.gov/osw/flood_inundation/toolbox/hazus.html

• Project description PPT:• http://www.usehazus.com/docs/real-time-flood-modeling-application.pdf

• Emergency Management article:• http://www.emergencymgmt.com/disaster/Real-Time-Flood-Risk-Data-Hazus.html

herbert.longenecker@fema.gov

Questions?