Articles | Volume 12, issue 4
Model description paper
11 Apr 2019
Model description paper |  | 11 Apr 2019

Implementation of the sectional aerosol module SALSA2.0 into the PALM model system 6.0: model development and first evaluation

Mona Kurppa, Antti Hellsten, Pontus Roldin, Harri Kokkola, Juha Tonttila, Mikko Auvinen, Christoph Kent, Prashant Kumar, Björn Maronga, and Leena Järvi

Data sets

Input data sets M. Kurppa

Model code and software

Source code of the PALM model system (revision 3125) PALM is free software that is redistributed and/or modified under the terms of the GNU General Public License (v3). First description of the model: Raasch, S. and M. Schröter (2001): PALM - a large-eddy simulation model performing on massively parallel computers. Meteorol. Z. 10, 363–372 Most recent description: Maronga, B., Gryschka, M., Heinze, R., Hoffmann, F., Kanani-Sühring, F., Keck, M., Ketelsen, K., Letzel, M. O., Sühring, M., and Raasch, S. (2015): The Parallelized Large-Eddy Simulation Model (PALM) version 4.0 for atmospheric and oceanic flows: model formulation, recent developments, and future perspectives, Geosci. Model Dev., 8, 1539-1637, DOI:10.5194/gmd-8-2515-2015

Short summary
This paper describes the implementation of a sectional aerosol module, SALSA, into the PALM model system 6.0. The first evaluation study shows excellent agreements with measurements. Furthermore, we show that ignoring the dry deposition of aerosol particles can overestimate aerosol number concentrations by 20 %, whereas condensation and dissolutional growth increase the total aerosol mass by over 10 % in this specific urban environment.