New explicit formulae for the settling speed of prolate spheroids in the atmosphere: theoretical background and implementation in AerSett v2.0.2

Abstract 1000 µ m, is based on recent heuristic drag expressions based on numeric simulations. We show that these two formulations show equivalent results within 2 % for d eq ≤ 100 µ m and within 10 % for particles with d eq ≤ 500 µ m falling with a horizontal orientation, showing that the first, more simple, method is suitable for virtually all atmospheric aerosols, provided their shape can be adequately described as a prolate spheroid. Finally, in order to facilitate the use of our results in chemistry transport models, we provide an implementation of the first of these methods in AerSett v2.0.2, a module written in Fortran.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: New explicit formulae for the settling speed of prolate spheroids in the atmosphere: theoretical background and implementation in AerSett v2.0.2 ; volume:17 ; number:14 ; year:2024 ; pages:5641-5655 ; extent:15 ; Geoscientific model development ; 17, Heft 14 (2024), 5641-5655 (gesamt 15)

Classification and Topics

• Classification: Elektrotechnik, Elektronik

Contributors, Places and Time

• Creator: Mailler, Sylvain ; Mallios, Sotirios ; Cholakian, Arineh ; Amiridis, Vassilis ; Menut, Laurent ; Pennel, Romain

Further information

• DOI: 10.5194/gmd-17-5641-2024
• URN: urn:nbn:de:101:1-2408061443085.096644852704
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:44 AM CEST