Identifying synoptic controls on boundary layer thermodynamic and cloud properties in a regional forecast model

Eissner, Jordan M.; Mechem, David B.; Jin, Yi; Ghate, Virendra P.; Booth, James F.

doi:https://doi.org/10.5194/acp-25-11275-2025

Articles | Volume 25, issue 18

https://doi.org/10.5194/acp-25-11275-2025

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

https://doi.org/10.5194/acp-25-11275-2025

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

Articles | Volume 25, issue 18

Research article

|

25 Sep 2025

Research article |

| 25 Sep 2025

Identifying synoptic controls on boundary layer thermodynamic and cloud properties in a regional forecast model

Jordan M. Eissner, David B. Mechem, Yi Jin, Virendra P. Ghate, and James F. Booth

Data sets

tsiskycover D. Flynn and V. Morris https://doi.org/10.5439/1992207

sondewnpn E. Keeler et al. https://doi.org/10.5439/1595321

met J. Kyrouac et al. https://doi.org/10.5439/1786358

1290rwpwindmeanlow P. Muradyan and B. Ermold https://doi.org/10.5439/1663214

ld Z. Zhu et al. https://doi.org/10.5439/1973058

ERA5 hourly data on single levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.adbb2d47

ERA5 hourly data on pressure levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.bd0915c6

Model code and software

jeissner/COAMPS-transect-analysis: COAMPS-transect-analysis v1.0 J. Eissner https://doi.org/10.5281/zenodo.17137173

Short summary

Low-level clouds have important radiative feedbacks and can occur in a range of meteorological conditions, yet our knowledge and prediction of them are insufficient. We evaluate model forecasts of low-level cloud properties across a cold front and the associated environments that they form in. The model represents the meteorological conditions well and produces broken clouds behind the cold front in areas of strong surface forcing, large stability, and large-scale subsiding motion.