PALM Tutorial

This tutorial teaches you about the design of PALM, and how to ... carry out runs with PALM for different meteorological scenarios. use specific parts of the model, such as the embedded particle model or topography. understand and analyse the PALM output data. add user-defined code to the model. debug errors. At least once a year, we are hosting the 5-day seminar An Introduction to the Large-Eddy Simulation Model PALM, which covers all the above-mentioned topics (Class of February 2020 in Fig. 1).

Fig 1: PALM seminar group February 2020 at IMUK, Leibniz University Hannover. Photographer: Micha Gryschka (Real-size image download)

If you cannot make it to the seminar, you could self-study the contents by following the time schedule of this years' PALM seminar (Fig. 2). The respective PDF presentations are available as attachments below (normal and handout version). At the PALM seminar September 2020 in Hannover, we were working with PALM revision number r4664. The PALM code is currently under development. To view the code changes since then, feel free to browse the repository, or have a look at the changelog.

Fig 2: Overview of the PALM seminar on 21st to 25th September 2020, as a webinar organised by the Institute of Meteorology and Climatology, Leibniz Universität Hannover.

Lecture presentations

Lecture number	Lecture title	pdf download
L-1.1	Seminar Introduction	L-1.1_Seminar_introduction.pdf​
L-1.2	Fundamentals of LES	L-1.2_Fundamentals_of_LES.pdf​
L-1.3	LES for beginners	L-1.3_LES_for_beginners.pdf​
L-1.4	PALM overview	L-1.4_PALM_overview.pdf​
L-1.5	PALM steering	L-1.5_PALM_steering.pdf​
L-1.6	Data visualisation	L-1.6_Data_visualization.pdf​
L-2.1	Numerics and boundary conditions	L-2.1_Numerics_and_boundary_conditions.pdf​
L-2.2	Code parallelisation	L-2.2_Code_parallelization.pdf​
L-2.3	Code structure and features	L-2.3_Code_structure_and_features.pdf​
L-2.4	Topography	L-2.4_Topography.pdf​
L-3.1	Restart runs	L-3.1_Restart_runs.pdf​
L-3.2	Non-cyclic boundary conditions	L-3.2_Non-cyclic_boundary_conditions.pdf
L-3.3	Grid nesting	L-3.3_Grid_nesting.pdf​
L-3.4	User-defined code	L-3.4_User_defined_code.pdf
L-3.5	Debugging	L-3.5_Debugging.pdf
L-3.6	Wind turbine model	L-3.6_Wind_turbine_model.pdf
L-3.7	Ocean model	L-3.7_Ocean_mode.pdf
L-3.8	Palmrun Gui	L-3.8_pamrungui.pdf
L-4.1	Land surface model	L-4.1_Land_surface_model.pdf​
L-4.2	Urban surface model	L-4.2_Urban_surface_model.pdf​
L-4.3	Radiation model	L-4.3_Radiation_modeling.pdf
L-4.4	Multi-agent system	L-4.4_Multi_agent_system.pdf
L-4.5	Static and dynamic drivers	L-4.5_Static_and_dynamic_driver.pdf
L-5.1	Lagrangian particle model	particle model.pdf​
L-5.2	Bulk cloud model	L-5.2_Bulk_cloud_model.pdf​
L-5.3	Chemistry model	L-5.3-Chemistry_model.pdf

Further documentation about other model components is available.

Exercise presentations

All exercises have been tested with Rev. 4664

Exercise	Normal version	Handout version	Input files
E0: Installation	E0_Installation.pdf	handout_E0_Installation.pdf	---
E1: Convective boundary layer	E1_CBL.pdf	handout_E1_CBL.pdf	E1 setup​
E2: Neutral boundary layer	E2_neutral.pdf	handout_E2_neutral.pdf	E2 setup
E3: Flow around building	E3_cube.pdf	handout_E3_cube.pdf	E3 setup
E4: Land surface model	E4_lsm.pdf	handout_E4_lsm.pdf	E4 setup
E5: Chemistry model	E5_Chemistry.pdf	handout_E5_Chemistry.pdf	E5 setup
E6: Wind turbine model	E6_WTM.pdf		E6 setup

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