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The Lagrangian ice microphysics code LCM: Introduction, current developments and benefits

Unterstraßer, Simon (2020) The Lagrangian ice microphysics code LCM: Introduction, current developments and benefits. EGU General Assembly, 4.-8.5.2020, Wien (online). doi: 10.5194/egusphere-egu2020-2307.

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Official URL: https://meetingorganizer.copernicus.org/EGU2020/EGU2020-2307.html

Abstract

The Lagrangian Cirrus Module (LCM) is a Lagrangian (also known as particle-based) ice microphysics code that is fully coupled to the large-eddy simulation (LES) code EULAG. The ice phase is described by a large number of simulation particles (order 106 to109) which act as surrogates for the real ice crystals. The simulation particles (SIPs) are advected and microphysical processes like deposition/sublimation and sedimentation are solved for each individual SIP. More specifically, LCM treats ice nucleation, crystal growth, sedimentation, aggregation, latent heat release, radiative impact on crystal growth, and turbulent dispersion. The aerosol module comprises an explicit representation of size-resolved non-equilibrium aerosol microphysical processes for supercooled solution droplets and insoluble ice nuclei. First, an general introduction to particle-based microphysics coupled to a grid-based (Eulerian) LES model is given. In the following, emphasis is put on highlighting the benefits of the Lagrangian approach by presenting a variety of simulation examples.

Item URL in elib:https://elib.dlr.de/134926/
Document Type:Conference or Workshop Item (Speech)
Title:The Lagrangian ice microphysics code LCM: Introduction, current developments and benefits
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Unterstraßer, SimonDLR, IPAhttps://orcid.org/0000-0003-3772-3678
Date:3 May 2020
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.5194/egusphere-egu2020-2307
Status:Published
Keywords:Large-eddy simulation, Lagrangian microphysics, particle-based microphysics, contrail, contrail-cirrus
Event Title:EGU General Assembly
Event Location:Wien (online)
Event Type:international Conference
Event Dates:4.-8.5.2020
Organizer:EGU
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Unterstraßer, Dr. Simon
Deposited On:15 May 2020 18:10
Last Modified:15 May 2020 18:10

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