Valley floor inclination affecting valley winds and transport of passive tracers in idealised simulations

Mikkola, Johannes; Gohm, Alexander; Sinclair, Victoria A.; Bianchi, Federico

doi:https://doi.org/10.5194/acp-25-511-2025

Articles | Volume 25, issue 1

https://doi.org/10.5194/acp-25-511-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-25-511-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 1

Research article

|

16 Jan 2025

Research article |

| 16 Jan 2025

Valley floor inclination affecting valley winds and transport of passive tracers in idealised simulations

Johannes Mikkola, Alexander Gohm, Victoria A. Sinclair, and Federico Bianchi

Supplement

https://doi.org/10.5194/acp-25-511-2025-supplement

Data sets

Data for "Valley floor inclination affecting valley winds and transport of passive tracers in idealised simulations" Johannes Mikkola https://doi.org/10.23729/234cb096-eec7-4f9b-b37b-435228df3996

Model code and software

Model and analysis code for "Valley floor inclination affecting valley winds and transport of passive tracers in idealised simulations" Johannes Mikkola https://doi.org/10.5281/zenodo.12178613

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Short summary

This study investigates the influence of valley floor inclination on diurnal winds and passive tracer transport within idealised mountain valleys using numerical simulations. The valley inclination strengthens the daytime up-valley winds but only up to a certain point. Beyond that critical angle, the winds weaken again. The inclined valleys transport the tracers higher up in the free troposphere, which would, for example, lead to higher potential for long-range transport.