Articles | Volume 13, issue 11
Geosci. Model Dev., 13, 5663–5685, 2020
https://doi.org/10.5194/gmd-13-5663-2020

Special issue: The PALM model system 6.0 for atmospheric and oceanic boundary-layer...

Geosci. Model Dev., 13, 5663–5685, 2020
https://doi.org/10.5194/gmd-13-5663-2020

Model evaluation paper 18 Nov 2020

Model evaluation paper | 18 Nov 2020

Sensitivity of spatial aerosol particle distributions to the boundary conditions in the PALM model system 6.0

Mona Kurppa et al.

Data sets

Input files and scripts for creating PALM simulation input files on Mäkelänkatu in Helsinki, Finland Mona Kurppa and Jani Strömberg https://doi.org/10.5281/zenodo.3839684

Model input and output, performance measures and modifications in the source code for PALM simulations on Mäkelänkatu in Helsinki, Finland Mona Kurppa https://doi.org/10.5281/zenodo.3824351

Model code and software

Source code of the PALM model system (revision 4416) Mona Kurppa https://doi.org/10.5281/zenodo.4005366

Python scripts for evaluating PALM simulations against mobile air quality observations on Mäkelänkatu in Helsinki, Finland Mona Kurppa https://doi.org/10.5281/zenodo.3839462

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Short summary
High-resolution modelling is needed to solve the aerosol concentrations in a complex urban area. Here, the performance of an aerosol module within the PALM model to simulate the detailed horizontal and vertical distribution of aerosol particles is studied. Further, sensitivity to the meteorological and aerosol boundary conditions is assessed using both model and observation data. The horizontal distribution is sensitive to the wind speed and stability, and the vertical to the wind direction.