This report presents modeling studies of the hydrodynamic and related physical processes of the Alaskan coastal waters for impact assessments of the exploration and exploitation of oil reserves on the Alaskan outer continental shelf. A major part of the report describes the methodology used for computing oil dispersion, weathering, and movements, and the results of the computations. The author describes the three-dimensional modeling system, the modeling of coastal hydrodynamic processes, wind fields, pack ice movements, and oil trajectories.