1. workshop2019
3. workshop2019

Workshop on Eulerian vs. Lagrangian methods for cloud microphysics

The meeting was aimed at bringing together researchers working on modelling cloud microphysics. It was a follow up event to the workshop organised in Warsaw in 2015.

The meeting was organised jointly by:
- Division of Computational Mathematics, Faculty of Math. and CS, Jagiellonian University &
- Institute of Geophysics, Faculty of Physics, University of Warsaw.

The workshop took place in Cracow, Poland on April 15-17, 2019 in the ``Auditorium Maximum'' of the Jagiellonian University.

TOPICS AND FORMAT

The axis of the workshop was the juxtaposition of the Eulerian (bulk or bin) and the Lagrangian (particle-based) methods for modelling clouds. The workshop featured introductory lectures, contributed talks, posters and a discussion panel.

WORKSHOP AGENDA

• Monday, April 15-th 2019
  • session I,
    chairs/organisers: Hanna Pawlowska (uw.edu.pl) & Sylwester Arabas (uj.edu.pl)
    • welcome from the organisers
    • introductory lecture:
      • Zachary Lebo (uwyo.edu)
        Aerosol-cloud-precipitation interactions in deep convective clouds
    • talk:
      • Adrian Hill (metoffice.gov.uk)
        The GASS Microphysics Intercomparison Project: How Different Are Aerosol-Cloud-Precipitation Interactions from a Variety of Microphysics Schemes?
  • session II, chair: Shin-ichiro Shima (u-hyogo.ac.jp)
    • talks:
      • Raymond Shaw (mtu.edu)
        Large Eddy Simulation of Turbulent Convection and Cloud Microphysics in the Pi Chamber
      • Juan Pedro Mellado (upc.edu)
        DNS and LES for simulating stratocumulus: better together
      • Piotr Dziekan (uw.edu.pl)
        UWLCM: a LES Model with Lagrangian Microphysics; turbulent advection, condensation and coalescence
  • session III, chair: Yign Noh (yonsei.ac.kr)
    • talks:
      • Noemi Sarkadi (pte.hu)
        Simulation of convective development with bin scheme: LBA case study to investigate the interaction between dynamics and microphysics
      • Bernhard Schulz (mpimet.mpg.de)
        Competing Effects of Droplet Sedimentation and Wind Shear on Entrainment in Stratocumulus
      • Wojciech Grabowski (ncar.ucar.edu)
        Separating physical impacts from natural variability using piggybacking (master-slave) technique
• Tuesday, April 16-th 2019
  • session IV, chair: Juan Pedro Mellado (upc.edu)
    • introductory lecture:
      • Anna Jaruga (caltech.edu)
        Aqueous chemical reactions in atmospheric clouds
    • talks:
      • Emma Simpson (manchester.ac.uk)
        Modelling co-condensation of semi-volatile organic compounds using an open access cloud parcel model
      • Juha Tonttila (fmi.fi)
        Design and applications of the detailed sectional aerosol-cloud model SALSA in a cloud-resolving setup
  • session V, chair: Raymond Shaw (mtu.edu)
    • talks:
      • Alexander Khain (huji.ac.il)
        Computationally efficient linear semi-Lagrangian scheme for advection of microphysical variables in cloud-resolving models
      • Zachary Lebo (uwyo.edu)
        Spurious broadening of modeled cloud droplet spectra using bin microphysics in an Eulerian spatial domain
      • Gustavo Abade (uw.edu.pl)
        Study of droplet-size distribution in turbulent clouds using stochastic microphysics at unresolved scales
  • session VI, chair: Oswald Knoth (tropos.de)
    • talks
      • Bogdan Rosa (imgw.pl)
        Numerical investigation of collision statistics of cloud droplets with the focus on two-way coupling effects
      • Shin-ichiro Shima (u-hyogo.ac.jp)
        Performance comparison among three Monte Carlo schemes for collision-coalescence: O'Rourke method, No-Time Counter method, and Super-Droplet method
      • Simon Unterstrasser (dlr.de)
        Particle-based coalescence/aggregation in a column model: Rigorous evaluation and comparison with bin model solutions
  • session VII, chair: Wojciech Grabowski (ncar.ucar.edu)
    • talks:
      • Christoph Siewert (dwd.de)
        The particle-based mixed-phase cloud microphysics model McSnow
      • Axel Seifert (dwd.de)
        A similarity model of partially rimed snowflakes and its application in Lagrangian super-particle simulations
    • announcement:
      • Lulin Xue (ncar.ucar.edu)
        pre-ICCP Pune workshop announcement
  • posters (at Manggha)
    • Sylwester Arabas (uj.edu.pl)
      particle-based-cloud-modelling.network
    • Piotr Bartman (uj.edu.pl)
      Super droplets in OpenFOAM
    • Jan Bohrer (tropos.de)
      Implementation of Discrete Particle Methods in a scalable Atmospheric Fluid Dynamics solver
    • Tom Dror-Schwartz (weizman.ac.il)
      Ultra-giant CCN's effect on warm clouds
    • Eshkol Eytan (weizmann.ac.il)
      Cloud's mixing: a continuous description from the core to the non-disturbed environment
    • Shuxian Fan (nuis.edu.cn)
      Effects of aerosol radiative feedback during a severe smog process based on WRF-Chem simulation
    • Markus Karrer (uni-koeln.de)
      Constraining fall speed of unrimed particles by cloud radar observations and novel modelling techniques
    • Tim Luettmer (uni-mainz.de)
      Ice formation pathways in Warm Conveyor Belts
    • Hyunho Lee (giss.nasa.gov)
      Evaluation of water vapor diffusion equation solving schemes for use in forward simulation of cloud Doppler radar spectra of drizzling stratocumulus
    • Junghwa Lee (tropos.de)
      How do the vertical distributions of the aerosol sizes and concentrations affect the cloud life-cycle?
    • Xiang-Yu Li (uio.no)
      Condensational and collisional growth of cloud droplets in a turbulent environment
    • Keigo Matsuda (jamstec.go.jp)
      Enhancement of radar reflectivity factor due to turbulent droplet clustering in cumulus clouds
    • Michael Olesik (uj.edu.pl)
      Super droplets and Ostwald ripening
    • Johannes Schwenkel (uni-hannover.de)
      Demystifying fog microphysics: A high-resolution Large-Eddy Simulation study with coupled particle based microphysics
• Wednesday, April 17-th 2019
  • session VIII, chair: Axel Seifert (dwd.de)
    • talks:
      • Guy Dagan (ox.ac.uk)
        Identifying the spatial scales in aerosol-precipitation interactions from a water and energy budget perspective
      • Qian Chen (nuis.edu.cn)
        Aerosol Impacts on Mesoscale Convective Systems Forming under Different Vertical Wind Shear Conditions
      • Yign Noh (yonsei.ac.kr)
        A Cloud Microphysics Parameterization for Shallow Cumulus Clouds Based on Lagrangian Cloud Model Simulations
  • session IX - panel discussion
    chairs: Simon Unterstrasser (dlr.de) & Adrian Hill (metoffice.gov.uk)

The panel discussion "Modeling of cloud microphysics: Can we do better?" focused on the points raised in the BAMS paper of the same title (doi:10.1175/BAMS-D-18-0005.1).

PHOTOS

Please click to enlarge

ORGANISATION AND FUNDING

The workshop was organised by Sylwester Arabas (sylwester.arabas@uj.edu.pl) and Hanna Pawlowska (hanna.pawlowska@igf.fuw.edu.pl) in connection with the ``Cloud and atmospheric particulate matter microphysics: novel mathematical modelling approaches'' project (2018-2020) supported by the Foundation for Polish Science and hosted at the Jagiellonian University in Cracow.

1. Jagiellonian University
2. June 2019
3. workshop2019