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Physics Colloquium - Behzad Ghanbarian

Dr. Behzad Ghanbarian, an associate professor of multidisciplinary research in Geology at K-State will present a colloquium titled "Complex network analysis of extreme precipitation and temperature events in the United States." 

Refreshments will be served at 4:15 pm in CW 119 prior to the colloquium.


Water scarcity is a potentially catastrophic global grand challenge, and in the United States a recurring and increasingly prevalent national security, infrastructure, and economic concern. Evidence indicates that traditional methods of assessing watershed and hydrologic systems are not keeping pace with the realities of climate change and extreme events. The main objective of this talk is to test the broad hypothesis that the networks of hydrologic and climatic data i.e., precipitation and temperature are interconnected, and their interdependencies as well as their nonlinear complex interactions can be characterized within the complex network theory framework at the national scale. For this purpose, complex networks of precipitation and temperature were constructed. For network analysis, we determined several properties, such as degree centrality, partial degree, and mean geographic distance. Generally speaking, we found that the number of extreme precipitation and temperature events has been increasing over the past three decades. We also found hubs in the US with local connections and teleconnections. Results based on the community detection analysis showed several communities for the precipitation and temperature data.

Dial-In Information

Email office@phys.ksu.edu for a zoom link.

Monday, November 6, 2023 at 4:30pm

Cardwell Hall, 102 Cardwell ( Map)

Event Type

Lecture, Colloquia, Seminar


Science and Technology


Current students, Faculty


physics, geology

Physics, Department of
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