Preprints
https://doi.org/10.5194/egusphere-2023-357
https://doi.org/10.5194/egusphere-2023-357
12 Apr 2023
 | 12 Apr 2023

An optimisation method to improve modelling of wet deposition in atmospheric transport models: applied to FLEXPART v10.4

Stijn Van Leuven, Pieter De Meutter, Johan Camps, Piet Termonia, and Andy Delcloo

Abstract. Wet deposition plays a crucial role in the removal of aerosols from the atmosphere. Yet, large uncertainties remain in its implementation in atmospheric transport models, specifically in the parameterisation schemes that are often used. Recently, a new wet deposition scheme was introduced in FLEXPART. The input parameters for its wet deposition scheme can be altered by the user, and may be case-specific. In this paper, a new method is presented to optimise the wet scavenging rates in atmospheric transport models such as FLEXPART. The optimisation scheme is tested in a case study of aerosol-attached 137Cs following the Fukushima Daiichi nuclear power plant accident. From this, improved values for the wet scavenging input parameters in FLEXPART are suggested.

Journal article(s) based on this preprint

19 Sep 2023
An optimisation method to improve modelling of wet deposition in atmospheric transport models: applied to FLEXPART v10.4
Stijn Van Leuven, Pieter De Meutter, Johan Camps, Piet Termonia, and Andy Delcloo
Geosci. Model Dev., 16, 5323–5338, https://doi.org/10.5194/gmd-16-5323-2023,https://doi.org/10.5194/gmd-16-5323-2023, 2023
Short summary

Stijn Van Leuven et al.

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CEC1: 'Comment on egusphere-2023-357', Juan Antonio Añel, 06 May 2023
    • AC1: 'Reply on CEC1', Stijn Van Leuven, 08 May 2023
  • RC1: 'Comment on egusphere-2023-357', Sheng Fang, 07 May 2023
    • AC2: 'Reply on RC1', Stijn Van Leuven, 22 May 2023
  • RC2: 'Comment on egusphere-2023-357', Nina Iren Kristiansen, 25 May 2023
    • AC3: 'Reply on RC2', Stijn Van Leuven, 30 Jun 2023

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CEC1: 'Comment on egusphere-2023-357', Juan Antonio Añel, 06 May 2023
    • AC1: 'Reply on CEC1', Stijn Van Leuven, 08 May 2023
  • RC1: 'Comment on egusphere-2023-357', Sheng Fang, 07 May 2023
    • AC2: 'Reply on RC1', Stijn Van Leuven, 22 May 2023
  • RC2: 'Comment on egusphere-2023-357', Nina Iren Kristiansen, 25 May 2023
    • AC3: 'Reply on RC2', Stijn Van Leuven, 30 Jun 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Stijn Van Leuven on behalf of the Authors (13 Jul 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (16 Aug 2023) by David Topping
AR by Stijn Van Leuven on behalf of the Authors (21 Aug 2023)

Journal article(s) based on this preprint

19 Sep 2023
An optimisation method to improve modelling of wet deposition in atmospheric transport models: applied to FLEXPART v10.4
Stijn Van Leuven, Pieter De Meutter, Johan Camps, Piet Termonia, and Andy Delcloo
Geosci. Model Dev., 16, 5323–5338, https://doi.org/10.5194/gmd-16-5323-2023,https://doi.org/10.5194/gmd-16-5323-2023, 2023
Short summary

Stijn Van Leuven et al.

Model code and software

An optimisation method to improve modelling of wet deposition in atmospheric transport models: applied to FLEXPART v10.4 Stijn Van Leuven https://doi.org/10.5281/zenodo.7789039

Stijn Van Leuven et al.

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The requested preprint has a corresponding peer-reviewed final revised paper. You are encouraged to refer to the final revised version.

Short summary
Precipitation collects airborne particles and deposits these on the ground. This process is called wet deposition and greatly determines how airborne radioactive particles (released routinely or accidental) contaminate the surface. In this work we present a new method to improve the calculation of wet deposition in computer models. We apply this method to the existing model FLEXPART by simulating the Fukushima nuclear accident (2011), and show that it improves the simulation of wet deposition.