MOX: A high-performance Monte Carlo code for in-water radiative transfer modeling in a high-resolution two-dimensional domain

This paper presents a new Monte Carlo (MC) code for modeling in-water radiative transfer processes within the framework of Ocean Color (OC) applications. The code numerically computes the up-welling radiance as well as upward and downward irradiance in a high-resolution two-dimensional (2D) grid space accounting for the effects of sea-surface waves. To overcome the computational load intrinsic to MC simulations, the code employs the state-of-the-art high-performance computing techniques, enabling large-scale MC simulations on modern supercomputers. This results in a fast and versatile software tool applicable in the context of optical oceanography to investigate various uncertainty budgets affecting in situ radiometric measurements.