SEADESC's main objective was to generate bottom habitat characterizations along with basic metadata from direct observations. This phase of SEADESC focused on projects funded by NOAA-OE from 2001 through 2004 in the southeastern United States (SEUS), which used a manned submersible (Johnson-Sea-Link, JSL; Harbor Branch Oceanographic Institution, HBOI) to make video observations of bottom habitats.
Analyzing these data involved defining basic habitat categories, creating and correcting submersible tracks, developing video analysis protocols, developing a database for storage and manipulation of data, and generating summary dive and site forms.
The NOAA Ocean Exploration and Research Program (OER) resulted from the merger of the NOAA Office of Ocean Exploration (OE) and the National Undersea Research Program (NURP).