The spatiotemporal evolution of atmospheric boundary layers over a thermally heterogeneous landscape

Mangan, Mary Rose; Vilà-Guerau de Arellano, Jordi; van Stratum, Bart J. H.; Lothon, Marie; Canut-Rocafort, Guylaine; Hartogensis, Oscar K.

doi:https://doi.org/10.5194/acp-25-8959-2025

Articles | Volume 25, issue 15

https://doi.org/10.5194/acp-25-8959-2025

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

https://doi.org/10.5194/acp-25-8959-2025

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

Articles | Volume 25, issue 15

Research article

|

15 Aug 2025

Research article |

| 15 Aug 2025

The spatiotemporal evolution of atmospheric boundary layers over a thermally heterogeneous landscape

Mary Rose Mangan, Jordi Vilà-Guerau de Arellano, Bart J. H. van Stratum, Marie Lothon, Guylaine Canut-Rocafort, and Oscar K. Hartogensis

Supplement

https://doi.org/10.5194/acp-25-8959-2025-supplement

Data sets

LIAISE LES - Prescribed Surface Fluxes Case M. R. Mangan et al. https://doi.org/10.5281/zenodo.13379335

LIAISE_LA-CENDROSA_CNRM_TETHERED-BALLOON-TURB_L2 G. Canut https://doi.org/10.25326/528

LIAISE_LA-CENDROSA_CNRM_RS_L2 O. Garrouste and G. Canut https://doi.org/10.25326/322

SAFIRE ATR42: Turbulence Data 25 Hz M. Lothon and G. Canut https://doi.org/10.25326/365

LIAISE_FLUX-MAPS_WUR_SurfaceFluxes_L1 M. R. Mangan et al. https://doi.org/10.25326/391

LIAISE_UNIFIED-EC_WUR_30min_L1 M. R. Mangan et al. https://doi.org/10.25326/390

LIAISE_ELS-PLANS_UKMO_radiosondes_L1 J. Price et al. https://doi.org/10.25326/429

Model code and software

MicroHH 1.0: a computational fluid dynamics code for direct numerical simulation and large-eddy simulation of atmospheric boundary layer flows (https://github.com/microhh/microhh) C. C. van Heerwaarden et al. https://doi.org/10.5194/gmd-10-3145-2017

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Short summary

Using observations and high-resolution turbulence modeling, we examine the influence of irrigation-driven surface heterogeneity on the atmospheric boundary layer (ABL). We use a multi-scale approach for characterizing surface heterogeneity to explore how its influence on the ABL within a grid cell would change with higher-resolution models. We find that the height of the ABL is variable across short distances and that the surface heterogeneity is felt least strongly in the middle of the ABL.