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Department Events

Events

• Apr

  23

  Appl Math: Tom Dean on "Contrail Climate Impacts: Modeling and Mitigation Strategies"

  McCormick-Engineering Sciences and Applied Mathematics (ESAM)

  11:15 AM M416, Technological Institute

  EVENT DETAILS

  Title: Contrail Climate Impacts: Modeling and Mitigation Strategies

  Speaker: Tom Dean, Breakthrough Energy

  Abstract: Aviation accounts for approximately 3.5% of global anthropogenic climate forcing. Of this, less than half is attributed to the CO2 output from fuel combustion. Nearly half of the total climate impact of aviation can be attributed to contrail cirrus – cirrus clouds that have been seeded by the exhaust plumes of the aircraft – though with considerable uncertainty. Given that only around 2-3% of all flights were are likely responsible for 80% of the global annual contrail climate forcing, a potential contrail mitigation strategy could involve re-routing this subset of flights to minimize the formation of strongly warming contrails. Studies have shown that such strategies would require as little as 0.2% additional fuel burn. Implementing such a strategy requires an accurate ability to forecast contrail impacts, which in turn requires accurate modeling of microphysical atmospheric processes at flight levels. In this talk we will give an overview of contrail modeling and describe the grid-based Contrail Cirrus Prediction model (CoCiP), whose output is designed to be input as a layer in flight planning tools.

  Zoom: https://northwestern.zoom.us/j/95168994177

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  TIME Tuesday, April 23, 2024 at 11:15 AM - 12:15 PM

  LOCATION M416, Technological Institute    map it

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  CONTACT Ted Shaeffer    ted.shaeffer@northwestern.edu EMAIL

  CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)

• Feb

  5

  Appl Math: Richard Townsend on "Numerical Asteroseismology with the GYRE Code"

  McCormick-Engineering Sciences and Applied Mathematics (ESAM)

  11:15 AM M416, Technological Institute

  EVENT DETAILS

  Title: Numerical Asteroseismology with the GYRE Code

  Speaker: Richard Townsend, University of Wisconsin

  Abstract: Some stars display periodic fluctuations in their brightness, arising from the excitation of their global oscillation modes. By modeling these fluctuations, we can place remarkably narrow constraints on the stars' global properties and detailed internal structure—a technique known as "asteroseismology".

  In this talk I'll review the theoretical principles of asteroseismology, and describe their implementation in GYRE—an open-source code I've been developing for a little over a decade. Despite committing a fair number of computational cardinal sins, GYRE appears to be accurate, robust, and fast, and has been adopted by many groups around the world as their workhorse for numerical asteroseismology. I'll showcase a few GYRE-based projects that I've recently been involved in, and then discuss enhancements that enable GYRE to simulate tidal phenomena in binary-star and star-planet systems.

  Zoom: https://northwestern.zoom.us/j/94833862205

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  TIME Thursday, February 5, 2026 at 11:15 AM - 12:15 PM

  LOCATION M416, Technological Institute    map it

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  CONTACT Anne Umbanhowar    anne.umbanhowar@northwestern.edu EMAIL

  CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)

• Feb

  12

  Appl Math: Roberto Zenit on "Title TBA"

  McCormick-Engineering Sciences and Applied Mathematics (ESAM)

  11:15 AM M416, Technological Institute

  EVENT DETAILS

  Title: TBA

  Speaker: Roberto Zenit, Brown University

  Abstract: TBA

  Zoom: TBA

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  TIME Thursday, February 12, 2026 at 11:15 AM - 12:15 PM

  LOCATION M416, Technological Institute    map it

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  CONTACT Anne Umbanhowar    anne.umbanhowar@northwestern.edu EMAIL

  CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)

• Feb

  19

  Appl Math: Chaoming Song on "Title TBA"

  McCormick-Engineering Sciences and Applied Mathematics (ESAM)

  11:15 AM M416, Technological Institute

  EVENT DETAILS

  Title: TBA

  Speaker: Chaoming Song, University of Miami (sabbatical at Northwestern University)

  Abstract: TBA

  Zoom: TBA

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  TIME Thursday, February 19, 2026 at 11:15 AM - 12:15 PM

  LOCATION M416, Technological Institute    map it

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  CONTACT Anne Umbanhowar    anne.umbanhowar@northwestern.edu EMAIL

  CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)

• Feb

  26

  Appl Math: Stefano Allesina on "Title TBA"

  McCormick-Engineering Sciences and Applied Mathematics (ESAM)

  11:15 AM M416, Technological Institute

  EVENT DETAILS

  Title: TBA

  Speaker: Stefano Allisina, The University of Chicago

  Abstract: TBA

  Zoom: TBA

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  TIME Thursday, February 26, 2026 at 11:15 AM - 12:15 PM

  LOCATION M416, Technological Institute    map it

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  CONTACT Anne Umbanhowar    anne.umbanhowar@northwestern.edu EMAIL

  CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)

• Mar

  12

  Appl Math: Xiao Yu Wang on "Title TBA"

  McCormick-Engineering Sciences and Applied Mathematics (ESAM)

  11:15 AM M416, Technological Institute

  EVENT DETAILS

  Title: TBA

  Speaker: Xiao Yu Wang, CRI Foundation

  Abstract: TBA

  Zoom: TBA

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  To subscribe to the Applied Mathematics Colloquia List send a message to LISTSERV@LISTSERV.IT.NORTHWESTERN.EDU with the command:

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  TIME Thursday, March 12, 2026 at 11:15 AM - 12:15 PM

  LOCATION M416, Technological Institute    map it

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  CONTACT Anne Umbanhowar    anne.umbanhowar@northwestern.edu EMAIL

  CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)

• Apr

  2

  Appl Math: Oleg Kirillov on "Title TBA"

  McCormick-Engineering Sciences and Applied Mathematics (ESAM)

  11:15 AM M416, Technological Institute

  EVENT DETAILS

  Title: TBA

  Speaker: Oleg Kirillov

  Abstract: TBA

  Zoom: TBA

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  To subscribe to the Applied Mathematics Colloquia List send a message to LISTSERV@LISTSERV.IT.NORTHWESTERN.EDU with the command:

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  TIME Thursday, April 2, 2026 at 11:15 AM - 12:15 PM

  LOCATION M416, Technological Institute    map it

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  CONTACT Anne Umbanhowar    anne.umbanhowar@northwestern.edu EMAIL

  CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)

• May

  13

  Appl Math: Melanie Mitchell on "Title TBA" - Reiss Lecture

  McCormick-Engineering Sciences and Applied Mathematics (ESAM)

  11:15 AM

  EVENT DETAILS

  Title: Title TBA - Reiss Lecture

  Speaker: Melanie Mitchell, Santa Fe Institute

  Abstract: TBA

  Zoom: TBA

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  TIME Wednesday, May 13, 2026 at 11:15 AM - 12:15 PM

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  CONTACT Anne Umbanhowar    anne.umbanhowar@northwestern.edu EMAIL

  CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)

• May

  14

  Appl Math: Melanie Mitchell on "Title TBA" - Reiss Lecture

  McCormick-Engineering Sciences and Applied Mathematics (ESAM)

  11:15 AM

  EVENT DETAILS

  Title: Title TBA - Reiss Lecture

  Speaker: Melanie Mitchell, Santa Fe Institute

  Abstract: TBA

  Zoom: TBA

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  To subscribe to the Applied Mathematics Colloquia List send a message to LISTSERV@LISTSERV.IT.NORTHWESTERN.EDU with the command:

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  TIME Thursday, May 14, 2026 at 11:15 AM - 12:15 PM

  ADD TO CALENDAR

  CONTACT Anne Umbanhowar    anne.umbanhowar@northwestern.edu EMAIL

  CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)