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Title: Perturbed parameter ensembles as a way to understand system behavior and improve models
Speaker: Ken S. Carslaw, University of Leeds
Title: Nordic Seas Blender: subduction, stirring and mixing in the upper ocean near Jan Mayen
Speaker: Jennifer MacKinnon, Scripps Institution of Oceanography
A peculiarity of nonlinear hyperbolic problems is that they must be interpreted as limits of second-order equations with vanishing viscosity. Despite not explicitly being present in the hyperbolic case, diffusion is needed, e. g., at discontinuities or to avoid the occurrence of nonphysical states. In the case of gas dynamics, for instance, dissipation corresponds to the production of thermodynamic entropy. To solve hyperbolic problems numerically, one needs to adapt these ideas to the discrete setting. Standard high-order methods, however, do not incorporate the appropriate amounts of artificial viscosity because these need to be chosen adaptively based on the solution. Among the high-resolution schemes capable of doing so are the recently proposed monolithic convex limiting (MCL) techniques [1] to be discussed in this talk. They offer a way to enforce physical admissibility, entropy stability, and discrete maximum principles for conservation laws. These methods can also be generalized to systems of balance laws in a well-balanced manner [2]. In addition to second-order finite element methods, extensions to high-order discontinuous Galerkin (DG) schemes shall also be presented [3]. Numerical examples for the so-called KPP problem, the nonconservative shallow water system, and the compressible Euler equations will be shown. An overview of MCL and other property-preserving methods can be found in our recently published book [4].
Title: New observational strategies to understand cloud processes and improve high resolution modelling
Speaker: Susanne Crewell, University of Cologne
Title: First results from RAMIP
Speaker: Laura Wilcox, University of Reading, and Bjørn Hallvard Samset, CICERO
Title: Air Pollution and Climate Change in the Global South: from air sensors to supercomputers
Speaker: Daniel M. Westervelt, Columbia University
Title: Microphysical evolution in mixed-phase mid-latitude marine cold-air outbreaks
Speaker: Paquita Zuidema, University of Miami
Title: Reconstructing and improving records of the volcanic forcing of climate
Speaker: Andrea Burke, University of St Andrews
Title: Climate monitoring activities and forecast diagnostics at ECMWF
Speaker: David Lavers, ECMWF
Title: Are Northern Hemisphere boreal forest fires more sensitive to future aerosol mitigation than to greenhouse gas driven warming?
Speaker: Robert J. Allen, University of California, Riverside
Title: Some surprising impacts of large-scale orography on global climate (online)
Speaker: David Battisti, University of Washington (online)
Title: The connection between the Atlantic Multidecadal Variability and Indian summer rainfall: a review
Speaker: Fei Fei Luo, Chengdu University
Title: The overlooked radiative forcing of desert dust
Speaker: Jasper Kok, UCLA
Title: An update about IPCC at the start of its seventh cycle
Speaker: Jan S. Fuglestvedt, IPCC and CICERO
Title: Learning from data through the lens of (ocean) models, surrogates, and their derivatives
Speaker: Patrick Heimbach, The University of Texas at Austin
Title: Understanding Sensitivity of Climate with Perturbed Parameter Ensembles
Speaker: Trude Eidhammer, NCAR
Title: Igniting Abrupt Climate Change: Unravelling Volcanic Catalysts of Millennial-Scale Climate Variability
Speaker: Guido Vettoretti, Niels Bohr Institute
Title: Offshore wind: Is power production limited by the atmospheric energy input?
Speaker: Ole Anders Nøst, Oceanbox
Title: Environmental changes from glacier ice cores
Speaker: Margit Schwikowski, Paul Scherrer Institut
Title: The impact of secondary ice production on clouds and climate
Speaker: Georgia Sotiropoulou , EPFL
Title: Using simple integrated assessment models to explore human and earth system feedbacks
Speaker: Sibel Eker, Radboud University and International Institute for Applied Systems Analysis (IIASA)
Title: A Lagrangian view of MOSAIC, the largest polar expedition: one year of atmospheric transport in the Arctic seen through trajectories
Speaker: Silvia Bucci, University of Vienna
Title: Turbulent transport of momentum and heat in the atmospheric surface layer: new perspectives on an old subject
Speaker: Dan Li, Boston University
Title: Natural experiments of aerosol-cloud interactions
Speaker: Velle Toll, University of Tartu