Several hundred meters below the surface of the Arctic Ocean, there are series of horizontal, well-mixed layers which are each on the order of a meter thick, separated by thin interfaces across which temperature and salinity make abrupt jumps. These structures are called thermohaline staircases and have been observed in the Arctic Ocean for over fifty years. However, despite having been shown to have impacts on vertical transportation of heat and nutrients, little is known about their long-term evolution. Using an unsupervised clustering algorithm and numerical experiments, I developed a novel technique to detect thermohaline staircases in observational data and examine their interactions with internal waves.