Worked on the nu-radio/NuRadioMC repository to enhance the accuracy of physical modeling in ice-to-air transition simulations. Focused on correcting the calculation of the index of refraction and its gradient within the IceModelSimple and IceModelExponentialPolynomial modules, addressing discrepancies between 1D and 2D array usage. This fix improved the handling of boundary conditions at the air interface, ensuring more reliable simulation results. Utilized Python and applied expertise in numerical methods and physics simulation to implement and document the changes. Updated the project changelog to reflect the bug fix, aligning the documentation with established engineering best practices.