Exploring biases in the GISS ModelE Earth system model brown carbon representation with in-situ flight observations

DeLessio, Maegan A.; Tsigaridis, Kostas; Bauer, Susanne E.

doi:10.5194/acp-26-7325-2026

Articles | Volume 26, issue 10

https://doi.org/10.5194/acp-26-7325-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-26-7325-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 10

Research article

|

28 May 2026

Research article |

| 28 May 2026

Exploring biases in the GISS ModelE Earth system model brown carbon representation with in-situ flight observations

Maegan A. DeLessio, Kostas Tsigaridis, and Susanne E. Bauer

Data sets

Exploring biases in the GISS ModelE Earth system model brown carbon representation with in-situ flight observations Maegan DeLessio et al. https://doi.org/10.5281/zenodo.15092997

MERRA2 inst3_3d_asm_Np: 3d,3-Hourly,Instantaneous,PressureLevel,Assimilation,Assimilated Meteorological Fields V5.12.4 Global Modeling and Assimilation Office (GMAO) https://doi.org/10.5067/QBZ6MG944HW0

ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols, Version 2 S. C. Wofsy et al. https://doi.org/10.3334/ORNLDAAC/1925

Particle Into Liquid Sampler 1 (PILS1) Sixteen second integrated Abs365, Version 2.0 A. Sullivan https://doi.org/10.26023/CRHY-NDT9-C30V

Model code and software

Exploring biases in the GISS ModelE Earth system model brown carbon representation with in-situ flight observations Maegan DeLessio et al. https://doi.org/10.5281/zenodo.15092997

GISS ModelE Source Code Snapshots National Aeronautics and Space Administration https://simplex.giss.nasa.gov/snapshots/

Short summary

This study utilizes flight campaign observations to evaluate the representation of brown carbon (BrC) aerosols in the Goddard Institute for Space Studies ModelE Earth system model. Measurements of BrC absorption and mass concentrations of related aerosols are compared to that of the model throughout the troposphere. By focusing on air masses influenced by biomass burning, this evaluation highlights important BrC and fire aerosol processes and identifies areas that require additional study.