Articles | Volume 25, issue 15
https://doi.org/10.5194/acp-25-8743-2025
https://doi.org/10.5194/acp-25-8743-2025
Research article
 | 
12 Aug 2025
Research article |  | 12 Aug 2025

Building a comprehensive library of observed Lagrangian trajectories for testing modeled cloud evolution, aerosol–cloud interactions, and marine cloud brightening

Ehsan Erfani, Robert Wood, Peter Blossey, Sarah J. Doherty, and Ryan Eastman

Data sets

Data and codes for paper on the creation of library of observed Lagrangian trajectories and large eddy simulations of aerosol-cloud interactions Ehsan Erfani et al. https://doi.org/10.5281/zenodo.13917317

Hourly CERES and geostationary (GEO) TOA fluxes, MODIS/VIIRS and GEO cloud properties, MODIS/VIIRS aerosols, and Fu-Liou radiative transfer surface and in-atmospheric (profile) fluxes consistent with the CERES observed TOA fluxes NASA https://ceres.larc.nasa.gov/data/

Remote sensing systems DMSP SSM/I daily environmental suite on 0.25 deg grid, version 7 Frank Wentz et al. https://www.remss.com/missions/ssmi/

Remote sensing systems GCOM-W1 AMSR2 daily environmental suite on 0.25 deg grid, version 7.2 Frank Wentz et al. http://www.remss.com/missions/amsr

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

MERRA-2 inst3_3d_aer_Nv: 3d, 3-Hourly, Instantaneous, Model-Level, Assimilation, Aerosol Mixing Ratio V5.12.4 (M2I3NVAER 5.12.4) Global Modeling and Assimilation Office (GMAO) https://doi.org/10.5067/LTVB4GPCOTK2

Model code and software

uw-trajectory Ehsan Erfani https://doi.org/10.5281/zenodo.13917362

System For Atmospheric Modeling Marat F. Khairoutdinov https://you.stonybrook.edu/somas/people/faculty/marat-khairoutdinov/sam/

Download
Short summary
In this study, we explore how marine clouds interact with aerosols. We introduce a novel approach to identify a reduced number of representative cases from a wide array of observed environmental conditions prevalent in the Northeast Pacific. We create over 2200 trajectories from observations and use cloud-resolving simulations to investigate how marine low clouds evolve in two different cases. It is shown that aerosols can delay cloud breakup, but their impact depends on precipitation.
Share
Altmetrics
Final-revised paper
Preprint