Models in Plasmas, Earth and Space Science (2022/2023)

Organizers: PF Claude Bardos (ICP and U. Paris), Oliver Hahn (WPI c/o U.Wien), Ludovic Ferrière (NHM Wien), Sabine Hittmeir (U. Wien), Alex Schekochihin (Oxford), PF Rupert Klein (HU Berlin)

Events

23. Pauli Colloquium on "Fusion: past and future of an energy source": Uriel Frisch (Lab. J.L. Lagrange, Observatoire de la Côte d'Azur, CNRS, Nice)
Location: Skylounge, 12th floor, Oskar-Morgenstern-Platz 1, 1090 Wien Time: 7. Jun 2023 (Wed) - 7. Jun 2023 (Wed); Opening: 15:15
Topics: 1) Coffee & Cake 2) 15h15 : “Introduction” by Norbert J. Mauser (WPI c/o U. Wien) 3) 15h20 – 16h15 : Uriel Frisch (Lab. J.L. Lagrange, Observatoire de la Côte d'Azur, CNRS, Nice) : «Fusion: past and future of an energy source» 3) 16h15 - : “open discussions” with drinks & sandwiches
Organisation(s) Wolfgang Pauli Institut Inst.CNRS Pauli Faculty for Mathematics, Univ. Wien Faculty for Physics, Univ. research platform “Mathematics-Magnetism-Materials” (MMM) Univ. Wien Faculty for Earth Sciences, Geography and Astronomy, Univ. Wien Organiser(s) Norbert J Mauser
Remark: Click here for further information

Workshop on "Inertial Confinement Fusion"
Location: WPI, OMP 1, Seminar Room 08.135 Time: 5. Jun 2023 (Mon) - 9. Jun 2023 (Fri); Opening: 11:00
Organisation(s) WPI Inst. CNRS Pauli Research Platform MMM "Mathematics-Magnetism-Materials" Organiser(s) Pat Diamond (UC San Diego) Uriel Frisch (CNRS Obs. Nice) Norbert J Mauser (WPI-MMM c/o U.Wien) Cornelius Rampf (U.Wien)

22. Pauli Colloquium on "Mathematics for Climate research": Rupert Klein (FU Berlin)
Location: Hörsaal 2 ”Eduard Suess” 2A122, 1 st floor UZA II, “Geozentrum”, Josef-Holaubek Platz 2, 1090 Wien Time: 12. Dec 2022 (Mon) - 12. Dec 2022 (Mon); Opening: 15:30
Topics: 1) 15h30 : “Introduction” by Norbert J. Mauser (WPI c/o U. Wien) 2) 15h40 – 16h30 : Rupert KLEIN (FU Berlin) : «Mathematics, a key to Climate Research» 3) 16h30 - : “open discussions” with drinks & sandwiches
Organisation(s) Wolfgang Pauli Inst. research platform “Mathematics-Magnetism-Materials” (MMM) Univ. Wien Faculty for Earth Sciences, Geography and Astronomy, Univ. Wien Organiser(s) Norbert J Mauser Rainer Abart
Remark: Abstract: Mathematics in climate research is often thought to be mainly a provider of techniques for solving, e.g., the atmosphere and ocean flow equations. Three examples elucidate that its role is much broader and deeper: 1) Climate modelers often employ reduced forms of “the flow equations” for efficiency. Mathematical analysis helps assessing the regimes of validity of such models and defining conditions under which they can be solved robustly. 2) Climate is defined as “weather statistics”, and climate research investigates its change in time in our “single realization of Earth” with all its complexity. The required reliable notions of time dependent statistics for sparse data in high dimensions, however, remain to be established. Recent math- ematical research offers advanced data analysis techniques that could be “game changing” in this respect. 3) Climate research, economy, and the social sciences are to generate a scientific basis for informed political decision making. Subtle misunderstandings often hamper systematic progress in this area. Mathematical for- malization can help structuring discussions and bridging language barriers in interdisciplinary research. Click here for further information

21. Pauli Colloquium & Kolloquium d. Fak. f. Mathematik: Uriel Frisch (CNRS Nice) “From Leonardo da Vinci to Andrei Kolmogorov to Giorgio Parisi : Five Centuries of Temporal Decay of Turbulence .”
Location: HS13 Fak.Math. OMP1, Uni Wien Time: 21. Sep 2022 (Wed) - 21. Sep 2022 (Wed); Opening: 16:00
Organisation(s) WPI Inst CNRS Pauli Fak. Mathematik Univ.Wien Organiser(s) Oliver Hahn (WPI c/o U.Wien Norbert J Mauser (WPI c/o MMM@U.Wien) Cornelius Rampf (U.Wien)

Pauli Symposium on "Asymptotic Analysis & Geophysical flows", part 3 Boualem Khouider
Location: MMM-WPI Seminarraum 8. Stock Fak Math, Oskar Morgensternplatz 1 Time: 27. Aug 2022 (Sat) - 27. Aug 2022 (Sat); Opening: 11:00
Topics: Boualem KHOUIDER (U. Victoria, Canada) "Stochastic lattice systems for climate models" Abstract:Tropical weather and climate variability consists of numerous circulation and cloud systems that occur on a hierarchy of temporal and spatial scales ranging from the scale of the convective cloud of 1km to 10 km to planetary intraseasonal disturbances such as the Madden Julian oscillation (MJO) and monsoon dynamics. These systems interact nontrivially with each other and with the global dynamics. Unfortunately, despite most recent improvements, state-of-the-art climate models represent very poorly these systems and their mutual interactions and their interactions with global dynamics as well as the rainfall distributions in the tropics. The representation of clouds and rainfall variability in the tropics is still one of the major uncertainties in the climate models used for the IPCC climate projections. The culprit is believed to be the poor representation of clouds and organized convection by the underlying subgrid models used to represent convection and clouds, which are deterministic in nature, are based on the quasi-equilibrium theory, and as such fail to represent the often chaotic variability due to the interactions of various cloud types with each other and with the environment. Instead, we use a stochastic lattice interacting particle system to represents these clouds and associated interactions using observations as a guiding principle. This leads to a better representation of the afore mentioned tropical modes of variability including the MJO and monsoon dynamics.
Organisation(s) WPI Fak.Math Uni Wien Organiser(s) Norbert J. Mauser Sabine Hittmeir

Pauli Symposium "Asymptotic Analysis and Geophysical Flows" Rupert Klein and Edriss Titi
Time: 22. Aug 2022 (Mon) - 22. Aug 2022 (Mon); Opening: 10:15
Topics: 10h15 coffee & cake 10h25 Norbert J. Mauser: introduction A) 10h30 – 11h20 : Rupert KLEIN (FU Berlin) "Asymptotic analysis: What is it and what is it good for?" Abstract: famous mathematicians, some of them practitioners themselves, have associated "asymptotics" with the "dark arts", "inventions of the devil", "a toolbox of tricks for special cases", and the like. In 40 years of experience with it I have come to a broader perspective, and that is the topic of this lecture. Most and foremost, I view Mathematics as the "science of structure", and I will argue why this leads me to consider asymptotics to be quite a systematic mathematical endeavour. I will highlight that asymptotics is found all over the place, from the applied mathematics of practical engineering to the award-winning work of a recent Fields medalist, and that the common denominator is the search for structure and understanding. Seen this way, the multi-faceted nature of asymptotics comes out as a necessity rather than as a reason for mockery. An asymptotic theory of tropical storms that is under development in my group will provide examples to go with my elaborations. B) 11h20 – 12h10 : Edriss TITI (U.Cambridge, Texas A&M, Weizmann) “Mathematical Analysis of Geophysical Models” Abstract: We present recent results concerning the global regularity of certain geophysical models. In particular, the three-dimensional Planetary Geostrophic and the Primitive Equations (PE) of oceanic and atmospheric dynamics with various anisotropic viscosity and turbulence mixing diffusion. However, in the non-viscous (inviscid) case it can be shown that, with or without rotation, the PE are linearly and nonlinearly ill-posed in the context of Sobolev spaces, and that there is a one-parameter family of initial data for which the corresponding smooth solutions of the primitive equations develop finite-time singularities (blowup). However, the PE will be shown to be well-posed in the space of real analytic functions, and we will discuss the effect of rotation on prolonging the life-span of analytic solutions. Capitalizing on the above results, we provide rigorous justification of the derivation of the viscous PE of planetary scale oceanic dynamics from the three-dimensional Navier-Stokes equations, for vanishing small values of the aspect ratio of the depth to horizontal width. Specifically, we can show that the Navier-Stokes equations, scaled appropriately by the small aspect ratio parameter of the physical domain, converge strongly to the primitive equations, globally and uniformly in time, and that the convergence rate is of the same order as the aspect ratio parameter.
Organisation(s) WPI Fak.Math Uni Wien Organiser(s) Norbert J. Mauser Sabine Hittmeir

Workshop on "Seamless numerics for geophysical flow models"
Location: WPI, OMP 1, Seminar Room 08.135 Time: 15. Aug 2022 (Mon) - 17. Aug 2022 (Wed)
Organisation(s) WPI Organiser(s) Rupert Klein (FU Berlin)

13th Plasma Kinetics Working Group Meeting (external website )
Location: WPI, OMP 1, Seminar Room 08.135 Time: 25. Jul 2022 (Mon) - 5. Aug 2022 (Fri); Opening: 9:00
Organisation(s) WPI MMM = research platform "Mathematics-Magnetism-Materials" @ UniWien Organiser(s) Alex Schekochihin (U. Oxford) Matthew Kunz (Princeton)

Talks in the framework of this thematic program... (by date) , (by name)

Pauli Fellows

Bardos, Claude			1. Jul 2022-30. Jun 2023	local address
Klein , Rupert			1. Jul 2022-30. Jun 2023	local address

Visitors

Adkins, Toby			24. Jul 2022-5. Aug 2022	local address
Barnes, Michael			24. Jul 2022-29. Jul 2022	local address
Baziotis, Ioannis			19. Feb 2023-24. Feb 2023	local address
Benacchio, Tommaso			15. Aug 2022-17. Aug 2022	local address
Benisti, Didier			4. Jun 2023-11. Jun 2023	local address
Besse, Nicolas			27. Jul 2022-13. Aug 2022	local address
			10. Dec 2022-24. Dec 2022	local address
			3. Jun 2023-10. Jun 2023	local address
Bott, Archie			24. Jul 2022-30. Jul 2022	local address
Chandran, Benjamin			31. Jul 2022-4. Aug 2022	local address
Chew, Ray			13. Aug 2022-18. Aug 2022	local address
Cowley, Steve			25. Jul 2022-5. Aug 2022	local address
Diamond, Pat			3. Jun 2023-10. Jun 2023	local address
Dif Prodalier, Guilhem			7. Jun 2023-9. Jun 2023	local address
Dodin, Ilya			24. Jul 2022-30. Jul 2022	local address
Ewart, Robbert			24. Jul 2022-6. Aug 2022	local address
Fouvry, Jean-Baptiste			25. Jul 2022-8. Aug 2022	local address
Frisch, Helene			17. Sep 2022-28. Sep 2022	local address
			4. Jun 2023-10. Jun 2023	local address
Frisch, Uriel			17. Sep 2022-28. Sep 2022	local address
			4. Jun 2023-10. Jun 2023	local address
Golse, Francois			7. Jun 2023-10. Jun 2023	local address
Hardman, Michael			31. Jul 2022-5. Aug 2022	local address
Hastermann, Gottfried			14. Aug 2022-20. Aug 2022	local address
Hosking, David			22. Jul 2022-30. Jul 2022	local address
Ivanov, Plamen			1. Aug 2022-5. Aug 2022	local address
Jochum, Felix			14. Aug 2022-18. Aug 2022	local address
Käppeli, Roger			6. Sep 2022-9. Sep 2022	local address
Kempf, Jean			29. Jul 2022-6. Aug 2022	local address
Khouider , Boualem			21. Aug 2022-29. Aug 2022	local address
Kühnlein, Christian			15. Aug 2022-17. Aug 2022	local address
Kunz, Matthew			24. Jul 2022-4. Aug 2022	local address
Loureiro, Nuno			24. Jul 2022-29. Jul 2022	local address
Majeski, Stephen			24. Jul 2022-30. Jul 2022	local address
Meyrand, Romain			24. Jul 2022-6. Aug 2022	local address
Nastac, Michael			24. Jul 2022-5. Aug 2022	local address
Nicolas, Timothee			5. Jun 2023-9. Jun 2023	local address
Parra-Diaz, Felix			31. Jul 2022-5. Aug 2022	local address
Rincon, Francois			24. Jul 2022-6. Aug 2022	local address
Santos, Joao Jorge			5. Jun 2023-7. Jun 2023	local address
Schekochihin, Alexander			24. Jul 2022-5. Aug 2022	local address
Schöberl, Joachim			15. Aug 2022-17. Aug 2022	local address
Smolarkiewicz, Piotr			15. Aug 2022-17. Aug 2022	local address
Squire, Jonathan			24. Jul 2022-5. Aug 2022	local address
Szmelter, Joanna			15. Aug 2022-17. Aug 2022	local address
Titi, Edriss S.			14. Aug 2022-24. Aug 2022	local address
Winarto, Hima			24. Jul 2022-31. Jul 2022	local address
Yang, Changhe			19. Jul 2022-24. Jul 2022	local address
Yerger, Evan			29. Jul 2022-6. Aug 2022	local address
Zhdankin, Vladimir			31. Jul 2022-7. Aug 2022	local address

PreDocs

Herbst-Kiss, Gabor Imre

1. Mar 2023-30. Jun 2023

local address