During November 2024, Donahue focused on enhancing data integrity within the E3SM-Project/E3SM repository by addressing two critical bugs in C++. He improved the FieldLayout component to correctly handle vertical levels for hyai and hybi grid types, ensuring accurate data processing and grid management. Additionally, he updated the SCREAM I/O header to correct cloud fraction type labels, preventing data misinterpretation in EAMXX I/O utilities. Donahue’s work emphasized robust data handling and configuration, consolidating fixes that reduce the risk of future mislabeling. These targeted improvements contributed to more reliable scientific results and a more stable data layout within E3SM.