The goal of research at GFDL is to expand the scientific knowledge of the behavior of the atmospheric, oceanic, and earth systems. A major emphasis involves simulation of these systems using complex numerical models. Since it’s inception in 1955 GFDL has played a prominent role in the history of numerical modeling. The scientific staff at GFDL frequently collaborates with scientists in the nearby (across the street) Atmospheric and Oceanic Sciences (AOS) Program which is a part of Princeton University, as well as with scientists from other government labs, universities, colleges, and private research corporations, both within and outside of the United States. The AOS Program is also a source of graduate students and visiting scientists.