
Two ultrahigh-energy (>1017 eV) neutrino detectors are being deployed in Antarctica: the Askaryan Radio Array (ARA) and the Antarctic Ross Ice-Shelf Antenna Neutrino Array (ARIANNA). As the experiments differ in both the design and the surrounding environment, I will describe the progress of a joint effort to understand the importance of these differences. Additionally, I will describe progress in the development of algorithms in analyzing ARA data in the search for a diffuse neutrino flux.