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Time and place: , CICERO, Oslo Science Park, Gaustadalléen 21. Room: «Rio»

Title: Perturbed parameter ensembles as a way to understand system behavior and improve models

Speaker: Ken S. Carslaw, University of Leeds

Time and place: , Room 2320, Kristine Bonnevies hus

Title: Nordic Seas Blender: subduction, stirring and mixing in the upper ocean near Jan Mayen

Speaker: Jennifer MacKinnon, Scripps Institution of Oceanography

Time and place: , Niels Henrik Abels hus, 9th floor

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].

Time and place: , Room 2320, Kristine Bonnevies hus

Title: New observational strategies to understand cloud processes and improve high resolution modelling

Speaker: Susanne Crewell, University of Cologne

Time and place: , CICERO, Oslo Science Park, Gaustadalléen 21. Room: «Rio»

Title: First results from RAMIP

Speaker: Laura Wilcox, University of Reading, and Bjørn Hallvard Samset, CICERO

Time and place: , CICERO, Oslo Science Park, Gaustadalléen 21. Room: «Rio»

Title: Air Pollution and Climate Change in the Global South: from air sensors to supercomputers

Speaker: Daniel M. Westervelt, Columbia University

Time and place: , Room 2320, Kristine Bonnevies hus

Title: Microphysical evolution in mixed-phase mid-latitude marine cold-air outbreaks

Speaker: Paquita Zuidema, University of Miami

Time and place: , Room 2320, Kristine Bonnevies hus

Title: Reconstructing and improving records of the volcanic forcing of climate

Speaker: Andrea Burke, University of St Andrews

Time and place: , The Norwegian Meteorological Institute, Tallhall (Oslo)-1-Bruun

Title: Climate monitoring activities and forecast diagnostics at ECMWF

Speaker: David Lavers, ECMWF

Time and place: , CICERO, Oslo Science Park, Gaustadalléen 21. Room: «Rio»

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

Time:

Title: Some surprising impacts of large-scale orography on global climate (online)

Speaker: David Battisti, University of Washington (online)

Time and place: , CICERO, Oslo Science Park, Gaustadalléen 21. Room: «Rio»

Title: The connection between the Atlantic Multidecadal Variability and Indian summer rainfall: a review

Speaker: Fei Fei Luo, Chengdu University

Time and place: , Room 2320, Kristine Bonnevies hus

Title: The overlooked radiative forcing of desert dust

Speaker: Jasper Kok, UCLA

Time and place: , Room 2320, Kristine Bonnevies hus

Title: An update about IPCC at the start of its seventh cycle

Speaker: Jan S. Fuglestvedt, IPCC and CICERO

Time and place: , Room 2320, Kristine Bonnevies hus

Title: Learning from data through the lens of (ocean) models, surrogates, and their derivatives

Speaker: Patrick Heimbach, The University of Texas at Austin

Time and place: , Room 2320 Kristine Bonnevies hus

Title: Understanding Sensitivity of Climate with Perturbed Parameter Ensembles 

Speaker: Trude Eidhammer, NCAR

Time and place: , Room 2320 Kristine Bonnevies hus

Title: Igniting Abrupt Climate Change: Unravelling Volcanic Catalysts of Millennial-Scale Climate Variability

Speaker: Guido Vettoretti, Niels Bohr Institute

Time and place: , Room 2320 Kristine Bonnevies hus

Title: Offshore wind: Is power production limited by the atmospheric energy input?

Speaker: Ole Anders Nøst, Oceanbox

Time and place: , Room Bruun, Kantina, Meterologisk Institutt, Henrik Mohns Plass 1

Title: Environmental changes from glacier ice cores

Speaker: Margit Schwikowski, Paul Scherrer Institut

Time and place: , Room 2320, Kristine Bonnevies hus

Title: The impact of secondary ice production on clouds and climate

Speaker: Georgia Sotiropoulou , EPFL

Time and place: , Oslo Science Park, Toppsenter

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)

Time and place: , Room 2320 Kristine Bonnevies hus

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

Time and place: , Room 2320, Kristine Bonnevies hus

Title: Turbulent transport of momentum and heat in the atmospheric surface layer: new perspectives on an old subject

Speaker: Dan Li, Boston University

Time and place: , Room 2320, Kristine Bonnevies hus

Title: Natural experiments of aerosol-cloud interactions

Speaker: Velle Toll, University of Tartu