EGU25-583, updated on 14 Mar 2025
https://doi.org/10.5194/egusphere-egu25-583
EGU General Assembly 2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Poster | Monday, 28 Apr, 14:00–15:45 (CEST), Display time Monday, 28 Apr, 14:00–18:00
 
Hall X5, X5.2
 Improving Precipitation Simulations in Regional Climate Models over the Yucatan Peninsula: The Role of Ice-Nucleating Particles in Cloud Microphysics Parameterizations
Salvador Castillo-Liñan, Ruth Cerezo-Mota, Luis Antonio Ladino-Moreno, José Abraham Torres-Alavez, and María Eugenia Allende-Arandía
Salvador Castillo-Liñan et al.
  • National Autonomous University of Mexico, Engineering Institute, Coastal Engineering and Processes Laboratory, Mexico (calsal.93@gmail.com)

This study aims to enhance the precipitation simulations of regional climate models (RCMs) over the Yucatan Peninsula by implementing a cloud microphysics parameterization based on observational data of ice-nucleating particles (INPs) collected in the region.

Cloud microphysics parameterizations derived from observational INP data enable RCMs to more accurately represent heterogeneous nucleation, a critical process in the formation of ice crystals in clouds, which plays a key role in modulating both the duration and amount of precipitation.

Preliminary analyses with the RegCM model suggest that simulated precipitation is highly sensitive to modifications in cumulus and microphysics parameterizations. These findings provide valuable insights for advancing the understanding of INPs’ role in simulations over tropical regions. Nonetheless, further detailed analyses are required to comprehensively assess their influence and scope in these settings.

How to cite: Castillo-Liñan, S., Cerezo-Mota, R., Ladino-Moreno, L. A., Torres-Alavez, J. A., and Allende-Arandía, M. E.:  Improving Precipitation Simulations in Regional Climate Models over the Yucatan Peninsula: The Role of Ice-Nucleating Particles in Cloud Microphysics Parameterizations, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-583, https://doi.org/10.5194/egusphere-egu25-583, 2025.