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  1. Data assimilation for extreme ionospheric events: observing system experiments of the September 26, 2011 geomagnetic storm

    14 Apr 2016 | Presentations | Contributor(s): Juan Durazo

    As increasingly sophisticated ground- and space-based technological systems that depend on the near-Earth space environment are being built, vulnerabilities to variations in the ionosphere are also increasing. These vulnerabilities are especially prominent during extreme space-weather events,...

  2. Tipping Points: Mathematical Mechanisms and Applications to Natural World

    14 Mar 2016 | Presentations

    Minisymposium presentations by Mary Silber, Rachel Kuske, and John Guckenheimer at the SIAM 2013 Annual Meeting

  3. Improving Numerical Weather Predictions Using Ideas From Nonlinear Dynamics

    14 Mar 2016 | Presentations | Contributor(s): Chris Danforth

    Video of Chris Danforth's Invited Lecture at MAA Mathfest, Hartford, CO, August 2, 2013

  4. Mary Lou Zeeman gives Sagan National Colloquium Public Lecture on mathematical modeling of climate at Ohio Wesleyan University

    14 Mar 2016 | Presentations | Contributor(s): Mary Lou Zeeman

    Click the "Supporting Docs" tab above, then click the link, which brings you to an Ohio Weslyan University archive of past lectures. Scroll down to "Sagan National Colloquium Featuring Mary Lou Zeeman," on Nov. 5th, 2013.

  5. Climate Change: The Science and the Math

    14 Mar 2016 | Presentations | Contributor(s): Christopher KRT Jones

     Chris Jones delivers public lecture at the College of William & Mary, February 1, 2013.

  6. Chaos in an Atmosphere Hanging on a Wall

    14 Mar 2016 | Presentations | Contributor(s): Chris Danforth

    Chris Danforth in the Computational Story Lab demonstrates chaos in an experiment that is a simple model of convection in the Earth's atmosphere. March 14, 2013

  7. Harnessing Math to Understand Tipping Points

    14 Mar 2016 | Presentations | Contributor(s): Mary Lou Zeeman

    Mary Lou Zeeman presents MAA Distinguished Lecture, March 28, 2013.

  8. Adaptive mesh refinement for storm surge modeling

    03 Mar 2016 | Presentations | Contributor(s): Marc Pierre Kjerland

    Coastal inundation such as storm surge is a major concern for many of the world's population centers, and recent disasters such as Hurricane Sandy and Typhoon Haiyan highlight the growing risks of climate change. Numerical simulation of storm surge can be challenging due to the large spatial...

  9. Local and non-local mechanisms of Arctic warming

    25 Feb 2016 | Presentations | Contributor(s): Vladimir Alexeev

    Polar amplification (PA) is a prominent feature of currently observed and predicted future climate change suggested by both observations and models. We will discuss several PA mechanisms and feedbacks in the ocean and the atmosphere suggested by different researchers and connect it to the real...

  10. MAA-NCS Summer Seminar Conceptual Climate Models

    22 Feb 2016 | Educational Materials | Contributor(s): Esther R Widiasih, Richard McGehee, Anna Barry, Samantha Megan Oestreicher, Jim Walsh

    MAA North Central Section Summer Seminar Conceptual Climate Models, July 22-24, 2013, Augsburg College in Minneapolis, MNSeminar home page: http://homepages.gac.edu/~hvidsten/MAASeminar/index.html 

  11. Topics from Biogeochemistry - Webinar, January 11, 2016

    20 Jan 2016 | Presentations | Contributor(s): Hans G Kaper

     In this talk I give some examples of mathematical problems in biogeochemistry.  The talk is based on Chapter 18 of "Mathematics & Climate" by Hans Kaper and Hans Engler, OT131, SIAM, Philadelphia,...

  12. Early warning indicators for transitions in high-dimensional dynamical systems

    17 Jan 2016 | Presentations | Contributor(s): Henk Dijkstra

    Two examples are presented.  1. Networks: The Atlantic Meridional Overturning (MOC), and 2. Transfer operators: Midlatitue Atmospheric Flow Transitions

  13. New averaging results motivated by climate models: fat tails, oscillations, and tipping

    10 Dec 2015 | Presentations | Contributor(s): Rachel Kuske

    We review recent results where new averaging approaches are developed and applied in the context of systems with multiple time scales and fat tails  and in non-autonomous multiple scale systems with oscillatory forcing.  These types of systems appear in a variety of higher dimensional...

  14. Jafarov Seminar

    30 Nov 2015 | Presentations | Contributor(s): Elchin Jafarov

    Dr. Elchin Jafarov is a research associate at the National Snow and Ice Data Center, at the Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder. He has a PhD in Geophysics and a masters degree in Mathematics both from the University of Alaska Fairbanks....

  15. Global Warming Could Be Nonlinear

    23 Nov 2015 | Presentations | Contributor(s): Jonah Bloch-Johnson

    It is widely acknowledged that many components of the Earth's climate system exhibit nonlinear behavior when forced, with examples ranging from ice sheets to ocean circulations to savanna. These changes, as profound as they are, are not expected to greatly impact global climate, as...

  16. Modelling the Marginal Ice Zone

    23 Nov 2015 | Presentations | Contributor(s): Luke Bennetts

    The marginal ice zone (MIZ) is the 10s to 100s of kilometres of partially ice-covered ocean, which sits between the open ocean and the quasi-continuous ice cover. It’s a highly dynamic region, where open ocean wave processes impact the ice cover, and it’s becoming larger and more...

  17. Where's the Math in Climate Science?

    09 Nov 2015 | Presentations | Contributor(s): Christopher KRT Jones

    Abstract: Climate science is dominated by the use of large-scale models, of which there are only 30 or so around the world. It might then seem that the need for mathematics is limited to areas that directly support the operation of such models. I will explain, by digging into the way the models...

  18. Hybrid EnKF and Particle Filter: Lagrangian DA and Parameter Estimation

    06 Nov 2015 | Presentations | Contributor(s): Naratip Santitssadeekorn, Christopher KRT Jones

    Dealing with high dimensional systems is one of the central problems of data assimilation.  A strategy is proposed here for systems that enjoys a skew-product structure.   Christopher Jones, University of North Carolina at Chapel Hill, presents joint work with Naratip...

  19. Modeling for Decision Support

    24 Oct 2015 | Presentations | Contributor(s): Mary Lou Zeeman

    Slides for Mary Lou Zeeman's talk titled "Modeling for Decision Support" at the MPE 2013+ Workshop on Education for the Planet Earth of Tomorrow, September 30 - October 2, 2015, NIMBioS, University of Tennessee.  

  20. Mathematics and Climate Research Network - An Example of a Successful Community-Building Eff ort

    19 Oct 2015 | Presentations | Contributor(s): Hans G Kaper

    Slides Hans Kaper prepared for a talk on October 1, 2015, titled "The Mathematics and Climate Research Network (MCRN) - An Example of a Successful Community-Building Effort."  It was part of the MPE 2013+ Workshop on Education for the Planet Earth of Tomorrow, September...