This assessment focused on several major sensor systems that are utilized from various deep ocean vehicles and platforms. These sensors include remote, oceanographic, and scientific/other, and may be used or deployed from ships, submersibles, remotely operated vehicles, or autonomous undersea vehicles. The temporal and spatial sampling from the various data acquisition platforms are summarized in Table 2.1. This matrix provides a listing of platform, the maximum time of sampling, and the horizontal and vertical (depth) excursion capability (Dickey 1991). Note that this table reflects the present capability and may soon be updated with new systems, such as the Japanese KAIKO 10,000 m remotely operated vehicle (ROV), which was undergoing sea trials during the summer of 1993.