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  1. Vegetation patterns in mathematical models, and vegetation patterns in Horn of Africa

    21 Apr 2016 | Presentations

    Visually striking large-scale spatial patterns of vegetation have been observed in semi-arid regions in the Americas, Africa and Australia. These have led to suggestions by theoretical ecologists that certain characteristics of the patterns may serve as early-warning signs of desertification....

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

    10 Dec 2015 | Presentations

    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...

  3. Tipping points and power cuts

    18 Jun 2015 | Presentations

  4. Who, or what, will tip the big climate models?

    18 Jun 2015 | Presentations

  5. ICMS Tipping Points: Fundamentals and Applications

    13 Jun 2015 | Workshops

    Objectives: This workshop (September, 2013) brings together mathematicians and statisticians, whose research expertise is relevant to investigating threshold behaviour in complex environmental systems, with the climate scientists and ecologists who exploit mathematical modelling in their research...

  6. Midwest Mathematics and Climate Conference - Day 2 Afternoon Session

    12 May 2015 | Presentations

    Charles Jackson, University of Texas, AustinDual-state Behavior of the Community Climate System ModelIce age climate between 80,000 and 11,000 years ago experienced abrupt (< 10 year) global-scale climate transitions every few thousand years. Evidence and theory suggests such behavior may be...

  7. Midwest Mathematics and Climate Conference - Day 3 Afternoon Session

    12 May 2015 | Presentations

    Mary Silber, Northwestern UniversityPattern Formation in the Drylands: Self Organization in Semi-Arid EcosystemsMuch of our understanding of spontaneous pattern formation in spatially extended systems was developed in the “wetlands" of fluid mechanics. That setting allowed...

  8. Midwest Mathematics and Climate Conference - Day 2 Morning Session

    12 May 2015 | Presentations

    Juan Restrepo, Oregon State UniversityData AssimilationAccounting for uncertainties has led us to alter our expectations of what is predictable and how such predictions compare to nature. A significant effort, in recent years, has been placed on creating new uncertainty quantification techniques,...

  9. Midwest Mathematics and Climate Conference

    12 May 2015 | Workshops

    The conference is sponsored by the National Science Foundation, Institute of Mathematics and Its Applications, the Office of Research,College of Liberal Arts and Sciences, and the Department of Mathematics, Department of Geography/Atmospheric Science Program, and The...

  10. Midwest Mathematics and Climate Conference

    12 May 2015 | Workshops

    The conference is sponsored by the National Science Foundation, Institute of Mathematics and Its Applications, the Office of Research,College of Liberal Arts and Sciences, and the Department of Mathematics, Department of Geography/Atmospheric Science Program, and The...

  11. Introduction to the Mathematics of Climate at UMN - Lecture 18

    12 May 2015 | Presentations

    This is lecture 18 in the series "Introduction to the Mathematics of Climate" offered at the University of Minnesota in 2014 with the support of MCRN and The Institute for Mathematics and its Applications.

  12. Introduction to the Mathematics of Climate at UMN - Lecture 14

    12 May 2015 | Presentations

    This is lecture 14 in the series "Introduction to the Mathematics of Climate" offered at the University of Minnesota in 2014 with the support of MCRN and The Institute for Mathematics and its Applications.  

  13. Realistic modeling and analysis of synchronization dynamics in power-grid networks

    08 May 2015 | Presentations

    An imperative condition for the functioning of a power-grid network is that its power generators remain synchronized. Disturbances can prompt desynchronization, which is a process that has been involved in large power outages. In this talk I will first give a comparative review of three leading...

  14. Introduction to the Mathematics of Climate

    07 May 2015 | Series

    This course will investigate the following questions from a mathematical perspective. What determines the Earth's surface temperature? Why does the carbon dioxide in the atmosphere affect the climate? How do changes in the Earth's orbital parameters change the climate? Why has the Earth...

  15. Complex Energy Systems

    07 May 2015 | Presentations

    This is the opening guest lecture for the Electric Grid Focus Group.  Dr. Michael Chertkov of Los Alamos National Lab describes the statistical and mathematical problems arising in complex energy systems, including the electric grid and gas networks.  Systems with high penetration of...

  16. Complex Phytoplankton Dynamics: The Mathematical Perspective

    04 May 2015 | Educational Materials

    Bibliography by Arjen Doelman and Antonios Zagaris to accompany tutorial lecture on Phytoplankton-Nutrient Modeling at the 2011 MBI Workshop on Ocean Ecologies and their Physical Habitats in a Changing Climate, and the follow-on lectures on Phytoplankton growth in oligotrophic oceans: Linear...

  17. Emulators in climate science. Uncertainty, sensitivity, calibration and more

    30 Apr 2015 | Presentations

    An emulator or a surrogate is a statistical approximation of a complex numerical model. Emulators are fast to run and include a measure of their own uncertainty. This makes them suitable for a number of applications in climate science. Emulators were originally devised for uncertainty...

  18. Correlated Observation Errors in Data Assimilation

    30 Apr 2015 | Presentations

    Remote sensing observations often have correlated errors, but the correlations are typically ignored in data assimilation for numerical weather prediction. The assumption of zero correlations is often used with data thinning methods, resulting in a loss of information, and reduction in analysis...

  19. Sea Ice Physics and Biology

    18 Mar 2015 | Educational Materials

    Bibliography by S.F.Ackley to accompany tutorial lecture on Biology/Physics Interface in Sea Ice at the 2011 MBI Workshop on Ocean Ecologies and their Physical Habitats in a Changing Climate

  20. NSF's Science Nation Video on David Holland's field work in Greenland

    18 Mar 2015 | Presentations

    MCRN member and founding principal investigator David Holland was featured in the NSF's Science Nation video, titled, "Mathematician uses skills to study Greenland's retreating glaciers," on September 9,...