Data Files: Video data were recorded on video tape recorders and the position of the camera sled was recorded using a GPS signal and different software packages, as described above.
File naming convention: Each tow is given a name consisting of a 3-letter designator for the island area followed by a two-digit year and three-digit tow number. During SB0401 the consecutive numbers started at SAI04001. Video tape labels and paper log forms are annotated with the tow name. Data recorded using Hypack software follow the Hypack 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, and the extension "raw." For example, a file collected on Dec. 10, 2004 (Julian date 345) aboard the Carolinian starting at time 1935 would be 2004CA3451935.raw. Time Correlation: All times are based on UTC. Clocks were manually synchronized prior to starting data collection each day of operations.
Resource Description: Digital video imagery that is geo-referenced to navigation files.
Online Links:
Benthic Habitat Mapping Group, Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), NOAA
These data provides optical observations that have been used to provide information on the distribution of coral communities in Garapan anchorage out side of Saipan Harbor, CNMI.
Specific frames spaced every 20 m from the video were analyzed. For each, five circles approximately 0.5 mm in diameter and spaced equidistantly were drawn in a horizontal line on a piece of clear plastic sheet taped to a computer monitor screen. Within the center of each circle the substrate, living cover, and growth morphology of coral colonies were identified. Classification information was recorded on a spreadsheet for each camera tow according to the codes and include the type of substrate, living cover (if any), and dominant variation in relief seen in the image. Spreadsheets with benthic classification data from video analysis are attributed to the appropriate tow track shapefile and along-track location. Color coding is then applied to highlight features of interest, such as the percentage of the seafloor covered by living corals or other benthic fauna found at each location or different types of substrate.
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- Distribution of the report is limited to NOAA and U.S. Navy personnel or contractors with a need to know about this project. There are no access constraints on the data upon which the report is based.
- Use_Constraints:
- Please acknowledge the NOAA Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center as the source of this information. Use of the report is limited to U.S. Navy personnel or contractors with a need to know about this project. There are no use constraints on the data upon which the report is based.
These data are not to be used for navigational purposes. NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.
Data format: | All navigation files contain information on the UTC date and time, horizontal position of the sled, and heading of the ship over the period of time that the camera sled is in the water. A total of 66 navigation files were collected, starting chronologically with 2004CA3380459.RAW and ending with 2004CA3510158.RAW in format ASCII |
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Media you can order: | CD-ROM (format ISO 9660) |
Data format: | Video data are available covering in excess of 120 km of seabed. These data were recorded on 73 video tapes. List of video tapes: SAI04001, Mini DV, Master and Backup SAI04003, Mini DV, Master and Backup SAI04004, Mini DV, Master and Backup SAI04005, MiniDV, Master and Backup SAI04006a, MiniDV, Master and Backup SAI04006b-007a, MiniDV, Master and Backup SAI04007b, MiniDV, Master and Backup SAI04008, MiniDV, Master and Backup SAI04009, MiniDV, Master and Backup SAI04010a, MiniDV, Master and Backup SAI04010b, MiniDV, Master and Backup SAI04010c, MiniDV, Master and Backup SAI04011a, MiniDV, Master and Backup SAI04011b, MiniDV, Master and Backup SAI04011c, MiniDV, Master and Backup SAI04011d, MiniDV, Master and Backup SAI04012a, MiniDV, Master and Backup SAI04012b, MiniDV, Master and Backup SAI04013a, MiniDV, Master and Backup SAI04013b, MiniDV, Master and Backup SAI04014, MiniDV, Master and Backup SAI04015a, MiniDV, Master and Backup SAI04015b, MiniDV, Master and Backup SAI04016a, MiniDV, Master and Backup SAI04016b, MiniDV, Master and Backup SAI04017, MiniDV, Master and Backup SAI04018a, MiniDV, Master and Backup SAI04018b, MiniDV, Master and Backup SAI04019, MiniDV, Master and Backup SAI04020a, MiniDV, Master and Backup SAI04020b, MiniDV, Master and Backup SAI04021a, MiniDV, Master and Backup SAI04021b, MiniDV, Master and Backup SAI04022a, MiniDV, Master and Backup SAI04022b, MiniDV, Master and Backup SAI04023, MiniDV, Master and Backup SAI04024, MiniDV, Master and Backup SAI04025, MiniDV, Master and Backup SAI04026, MiniDV, Master and Backup SAI04027a, MiniDV, Master and Backup SAI04027b, MiniDV, Master and Backup SAI04028a, MiniDV, Master and Backup SAI04028b, MiniDV, Master and Backup SAI04030, MiniDV, Master and Backup SAI04031a, MiniDV, Master and Backup SAI04031b, MiniDV, Master and Backup SAI04032, MiniDV, Master and Backup SAI04033, MiniDV, Master and Backup SAI04034, MiniDV, Master and Backup SAI04035a, MiniDV, Master and Backup SAI04035b, MiniDV, Master and Backup SAI04035c, MiniDV, Master and Backup SAI04035d, MiniDV, Master and Backup SAI04036, MiniDV, Master and Backup SAI04037, MiniDV, Master and Backup SAI04038a, MiniDV, Master and Backup SAI04038b, MiniDV, Master and Backup SAI04039a, MiniDV, Master and Backup SAI04039b, MiniDV, Master and Backup SAI04039c, MiniDV, Master and Backup SAI04040a, MiniDV, Master and Backup SAI04040b, MiniDV, Master and Backup SAI04041, MiniDV, Master and Backup SAI04042, MiniDV, Master and Backup SAI04043a, MiniDV, Master and Backup SAI04043b, MiniDV, Master and Backup SAI04043c, MiniDV, Master and Backup SAI04044, MiniDV, Master and Backup in format mini DV digital video cassette |
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Media you can order: | Video cassette tape (format Mini DV) |