PALM Technical Documentation

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PALM core Governing equations atmosphere Governing equations ocean Pressure solver Turbulence closure Discretization Boundary conditions Initialization

Additional features Atmosphere-ocean coupling Cloud microphysics Grid nesting Lagrangian cloud model (LCM) Lagrangian particle model (LPM) Land surface model (LSM) Large-scale forcing Nudging Plant canopy model (PCM) Radiation models Wind turbine model (WTM)

Technical aspects Code documentation with Doxygen Data handling General code structure Machine-related information Parallelization and optimization Particle code structure Pre-processor directives? Topography implementation User-code implementation

PALM Program Control

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Model operation Overview Launching a simulation mrun? mrungui? Model setup example? Interactive mode and debugging? Simulation chains (Restarts & large-file handling) Monitoring a simulation PALM watchdog (batch jobs)

Model setup Overview PALM core parameters Initialization Runtime PALM feature parameters dvr graphics output Lagrangian particle model Land surface model Nesting Plant canopy model Radiation model Spectra output Synthetic Turbulence User defined Virtual flight model Wind turbine model Alphabetical list

Code extensions Interfaces to PALM core Compiling and linking User-defined data output User-defined domains User-defined parameters

LEFT OVER

• Debugging ---> move where???

PALM Data I/O and visualization

(to be resorted!!)

• Input/Output files

• netCDF data output
  • Generation of a PALM netCDF file?
  • Example of a PALM netCDF data set
  • Masked data output
• Postprocessing with NCL
  • List of parameters for PALM NCL scripts
• Postprocessing with IDL
• Visualization with dvr
• Visualization with VAPOR
• Creating animations with img2video
• Creating stereo images with img2stereo

• Input/Output files
  • Palm input data standard

Simulation examples

!!!needs special care!!!

• Minimum set for simulating the CBL
• Topography?
• Turbulent inflow
• Ocean runs
• Coupled atmosphere-ocean runs
• Runs with large scale forcing and nudging
• Run with land surface model and coupled to the RRTMG radiation model

PALM Model Documentation

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Model description

Model formulation

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Embedded models

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Technical realization

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User manual

Steering of interactive / batch runs?

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Model steering

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Steering examples for special setups

• Minimum set for simulating the CBL
• Topography?
• Turbulent inflow
• Ocean runs
• Coupled atmosphere-ocean runs
• Runs with large scale forcing and nudging
• Run with land surface model and coupled to the RRTMG radiation model

Data handling/visualization

• netCDF data output
  • Generation of a PALM netCDF file?
  • Example of a PALM netCDF data set
  • Masked data output
• Postprocessing with NCL
  • List of parameters for PALM NCL scripts
• Postprocessing with IDL
• Visualization with dvr
• Visualization with VAPOR
• Creating animations with img2video
• Creating stereo images with img2stereo

Error messages

• PALM standard code (PA****)
• User interface (UI****)
• NetCDF (NC****)

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PALM code development

• Release notes
• History of changes (2018-current)
• History of changes (2017)
• History of changes (2013-2016)
• History of changes (2009-2012)
• Rules for developers
• PALM-4U development
• Code development with eclipse
• Known bugs
• Testsuite and Testserver
• OpenACC tests

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Machine related informations

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