Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11765/14312
Impact of the microphysics in HARMONIE-AROME on fog
Title: Impact of the microphysics in HARMONIE-AROME on fog
Authors: Contreras Osorio, SebastiánMartín Pérez, DanielAutor AEMETIvarsson, Karl-IvanNielsen, Kristian PaghRooy, Wim deGleeson, EmilyMcAufield, Ewa
Keywords: Fog; Cloud microphysics; HARMONIE-AROME; Cloud droplet number concentration; Numerical weather prediction; Cloud droplet size distribution
Issue Date: 2022
Publisher: MDPI
Citation: Atmosphere. 2022, 13(12), 2127
Publisher version: https://doi.org/10.3390/atmos13122127
Abstract: This study concerns the impact of microphysics on the HARMONIE-AROME NWP model. In particular, the representation of cloud droplets in the single-moment bulk microphysics scheme is examined in relation to fog forecasting. We focus on the shape parameters of the cloud droplet size distribution and recent changes to the representation of the cloud droplet number concentration (CDNC). Two configurations of CDNC are considered: a profile that varies with height and a constant one. These aspects are examined together since few studies have considered their combined impact during fog situations. We present a set of six experiments performed for two non-idealised threedimensional case studies over the Iberian Peninsula and the North Sea. One case displays both low clouds and fog, and the other shows a persistent fog field above sea. The experiments highlight the importance of the considered parameters that affect droplet sedimentation, which plays a key role in modelled fog. We show that none of the considered configurations can simultaneously represent all aspects of both cases. Hence, continued efforts are needed to introduce relationships between the governing parameters and the relevant atmospheric conditions.
URI: http://hdl.handle.net/20.500.11765/14312
ISSN: 2073-4433
Appears in Collections:Artículos científicos 2019-2022


Files in This Item:
  File Description SizeFormat 
atmosphere-13-02127_c...
568,47 kBAdobe PDFThumbnail
View/Open
Show full item record



Items in Arcimis are protected by Creative Commons License, unless otherwise indicated.

Arcimis Repository
Nota Legal Contacto y sugerencias