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Meetings & Events

May 2025 Chapter Meeting

  • Date / Time: May 21, 6:00–8:00 PM
  • Place: Fate Brewing Scottsdale Brewery, 1312 N Scottsdale Rd.
    Scottsdale, AZ, 85257
  • Cost: $20 for members, $25 for nonmembers — please register online in advance or sponsor this event for $100!
  • **Dinner is included in the registration price, but not drinks.**
Register or Sponsor

Abstract: A Shared Perspective on the Use of Design Storms Under Uncertainty

Design storms obtained from intensity-duration-frequency (IDF) curves are critical for sizing, planning, and managing infrastructure. In this talk, I will first revise how IDF curves are generated in the U.S. and their underlying assumptions and sources of uncertainty. I will then present two studies aimed at improving IDF curves in Central Arizona. The first presents an alternative statistical model that accounts for different distributions of extreme precipitation in summer and winter and could incorporate nonstationarity due to global warming. The second study shows how precipitation estimates from weather radars can be used to better simulate the spatial variability of IDF curves and reduce their uncertainty. While presenting the results, I would like to hear the audience’s perspective on how they use design storms in their work and whether they consider the uncertainty sources of IDF curves.

Speaker: Dr. Giuseppe Mascaro, Associate Professor at the ASU School of Sustainable Engineering and the Built Environment

Giuseppe Mascaro is an Associate Professor in the School of Sustainable Engineering and the Built Environment at Arizona State University (ASU). His research has the primary goal of quantifying the impacts of global warming on hydrologic processes and infrastructure at local scales, with a focus on extreme precipitation and flooding. Dr. Mascaro has developed creative ways to synergistically combine advanced statistical techniques with physics-based models of the Earth’s climate and hydrologic cycle. He has been involved and taken an essential role in multi-institutional and single-investigator activities funded by federal agencies (NSF, NASA, NOAA, DoE, DoD) and a public utility (SRP) to conduct significant, internationally recognized research.

If you would like to present at a future chapter meeting, contact us at [email protected]. Note that we can no longer issue refunds for cancellations; in addition, you must pay in advance — we cannot take payments at the door or invoice you after an event.

Chapter Officers & Board Members

2025 Officers

  • President: Michel Hulst
  • Vice President: Justin Clark, Lynker
  • Treasurer: Lauren Handley, LRE Water
  • Secretary: Zach Keller, SRP
  • Chapter Board Member at Large: Kelly Mott LaCroix, USDA Forest Service
  • Chapter Board Member at Large: Bryon Baden, GES
  • Chapter Board Member at Large: Lacey James, SRP

2025 Corporate Board Members

  • Board Member: Chris Brooks, CAP
  • Board Member: Enrique Vivoni, ASU
  • Board Member: Nathan Miller, Matrix New World

You can contact board members via email at [email protected].

Chapter News