Equipment Description: The TOAD was deployed from the starboard gunwhale of the vessel. The TOAD sled body used for the 2008 data collection is constructed from a shortened Phantom ROV body with a tail piece added for stability. It is equipped with a Deep Sea Power and Light Multi SeaCam 2060 color video camera, two 500 W DeepSea Power and Light Multi-SeaLite model 1050 underwater lights, a sonar altimeter to detect the height of the camera above the seafloor, a pair of parallel lasers to determine the size/scale of viewed objects, a compass to determine the sled heading and orientation, and a depth (pressure) sensor. The video signal from the sled is send via a coaxial conductor within a 200 m long and 127 mm diameter umbilical cable to a topside control unit. All TOAD surface components were located below deck in the V berth of the vessel within an equipment rack secured to the benches.
Data Files: Video data were recorded on a video tape recorder. The position of the camera sled was recorded using Hypack Max version 6.2b survey software.
File naming convention: Each tow is given a name consisting of a 3-letter designator for the island area followed by two-digit year and three-digit tow number. For example, during BV0801 (Bonavista II's 1st cruise in calendar year 2008) the first tow was called TUT08001. Video tape labels and paper log forms are annotated with the tow name. Data files recorded in Hypack software followed their CHS filename format consisting of the year, the first two letters of the platform name, the Julian date, and the hour and minute in which the file was started. For example, a file collected on July 18, 2005 (Julian date 199) aboard the Hi'ialakai starting at time 1935 would be 2005HI1991935.
Time Correlation: All times are based on UTC. Three clocks were manually synchronized prior to starting data collection; the clock in the video character generator that was used to annotate the video tape, in the video cassette recorder, and in the computer running the Hypack Max software. These clocks were set to UTC at the beginning of each day's operations.
Name & address of person collecting data: John Rooney NOAA PIFSC 1125B Ala Moana Blvd Honolulu, HI 98614
Resource Description: Digital video imagery that is geo-referenced to navigation files.