Worked on the GEOS-ESM/GOCART repository, focusing on enhancing the stability and accuracy of atmospheric modeling simulations. Addressed a critical issue in the GOCART2G_MieMod.F90 module by correcting the variable used to access dry particle density data, ensuring that calculations for particle properties and downstream aerosol simulations relied on accurate inputs. Utilized Fortran and scientific computing techniques to implement the fix, which involved reverting to the intended variable and documenting the changes for traceability. This targeted adjustment improved data integrity throughout the module, preventing the propagation of density-related errors and supporting reproducibility in atmospheric science workflows.