Episodes

  • Engineering for urban conflagrations
    Feb 18 2025

    Interview with Oregon State University research engineer Erica Fischer. As wildfires increasingly affect communities and civil infrastructure, structural engineers apply their expertise in interdependent lifeline systems and structures. Fischer says engineers are primed to investigate “urban conflagrations” in all phases, including community adaptation and mitigation. She cites research findings from the 2018 Camp Fire in Paradise, CA, which led to valuable new understandings about water pipeline contamination.

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    12 mins
  • Installing the Sentinel mobile weather station
    Jan 22 2025

    University of Florida engineer Brian Phillips describes the procedure for installing the Sentinel mobile weather station directly on the beach. Assembly starts with drilling a 20-foot auger hole. Once the foundation is secure, the team raises the 33-foot carbon-steel-fiber mast, fully instrumented. The setup resists wind and wave impacts. During the hurricane, the station sends data in real time to servers at University of Florida. This year, the team deployed the Sentinel during Hurricanes Helene and Milton. Thanks to NSF MRI funding, the team will continue improving the design and build several more Sentinels.

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    8 mins
  • Brian Phillips intros the Sentinel mobile weather station
    Jan 22 2025

    University of Florida engineer Brian Phillips updates us on NSF-funded efforts to capture vital data during landfalling hurricanes. For decades, UF researchers have deployed mobile weather stations. Now, Phillips describes the newly designed Sentinel weather station. The 33 feet tall tower, anchored 20 feet into the shoreline, can withstand a Category 5 hurricane, including 16-foot surge and breaking waves. During Hurricane Helene, the Sentinel gathered data on wind speeds, surge, and the water’s chemical and biological constituency.

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    8 mins
  • Multipurpose Wind-Wave Experimentation
    Jan 22 2025

    The goal of the proposed NICHE facility: To understand the joint destructive forces of wind and waves —at full scale — in order to design infrastructure capable of resisting damage from hurricanes, tornadoes, surge flooding, and related natural hazards. Among its capabilities, NICHE will enable: testing full-scale residential structures to failure; testing protective capabilities of natural elements such as vegetation; testing of “gray” structures structures like seawalls and breakwaters; investigations and modeling of coastal processes, including sediment transport. This future NSF-funded research laboratory is called the “National Full-Scale Testing Infrastructure for Community Hardening in Extreme Wind, Surge, and Wave Events,” or NICHE.

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    14 mins
  • Designing the World’s Largest Wind-Wave Research Lab
    Dec 4 2024

    Plans are afoot to build the world’s largest wind-wave research lab, capable of generating 200 MPH hurricane winds and 5-meter-high waves. This NSF-funded facility will enable full-scale investigations into structural and coastal resilience — and a secure future in the face of destructive natural hazards. On today’s show, Florida International University wind engineer Arindam Chowdhury joins us to describe this facility, the National Full-Scale Testing Infrastructure for Community Hardening in Extreme Wind, Surge, and Wave Events — or NICHE, for short.

    About NICHE. The NICHE lab will have a 20-fan array capable of generating 200 MPH winds, that’s a Cat 6 hurricane — as well as generating transient winds like tornadoes and downbursts. NICHE’s enormous wind field will enable testing of full-scale two-story structures. It will have a 500-meter-long wave flume and be capable of generating five-meter-high waves. Significantly, the NICHE team is incorporating facility protocols for researchers to deliver expedient, real-world impact.

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    15 mins
  • Protecting liquefaction-prone soils in the PNW
    Nov 14 2024
    Geotech engineer Diane Moug is an authority on microbially induced desaturation, known as “MID.” This technique, developed at Arizona State University, prevents soils from liquefying in an earthquake. Moug describes how microbes desaturate soils, the benefits of the process, and her own, ongoing experiments underway in the Pacific Northwest. These include a site in Oregon’s Critical Energy Infrastructure hub – which is dangerously situated on liquefiable soil.
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    14 mins
  • Diane Moug, One CAREER Award story
    Nov 14 2024
    Obtaining an NSF CAREER Award is a milestone for academics in the sciences. Early-career geotechical engineer and researcher Diane Moug shares her experiences writing and applying for – and then (finally) successfully winning, a CAREER Award.
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    13 mins
  • Improving the Cone Penetration Test Featuring Diane Moug.
    Nov 14 2024
    The cone penetration test (CPT) is a standard tool for geotechnical engineers; it's used for measuring soil sheer strength, stress history and type. Leveraging her NSF CAREER award, Portland State U researcher Diane Moug plans to improve the CPT, so engineers can make better interpretations of CPT data. Moug will employ NHERI at UC Davis centrifuges, numerical modeling, and lab experimentation.
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    11 mins