vid113_0401d -- Point coverage of sediment types from video collected on AR-04-04 McArthurII research cruise.

A Phantom DH2+2 remotely operated vehicle (ROV) outfitted with video equipment (and other devices) was deployed fromthe NOAA Ship McAurthurII (AR04-04) in an attempt to document the presence of critical hard bottom benthic habitats believedto exist in the waters of the Olympic Coast national marine sanctuary (OCNMS). Video data from specific dives falling withinthe bounds of the HMPR-113-2004-01d survey area were reviewed to examine the benthic characteristics as a tool for validatingsonar imagery.

The ROV survey was conducted to help address management questions of the OCNMS related to benthic communities, groundtruthprevious acoustic surveys, characterize the diversity, abundances, and health of living marine resources associated with hardbottom and soft bottom substrates, evaluate the fishing/harvest pressures on these critical habitats and their associated faunain areas of high and low fishing intensity, generate GIS-compatible data on critical habitats, and provide support to sanctuary-wide interests on the west coast to address such topics as conditions of critical habitats, and fishing/harvest impacts in theseareas.

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The Olympic Coast National Marine Sanctuary nor any of their employees, make any warranty, express or implied,including the warranties of merchantability and fitness for a particular purpose, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product or process disclosed,or represents that its use would not infringe privately owned rights. Original data elements may have been compiled from various sources. Spatial information may not meet National Mapping Accuracy Standards. This information may be updated, corrected, or otherwise modified without notification. For additional information about this data contact the Olympic Coast national marine sanctuary.

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These data are subjective visual observations from video imagery. Interpret with caution.

Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.2.0.1324

Unknown

Unknown. Positioning of the ROV was not precise due to less than optimal operation ofthe Trackpoint II positioning system. The position update frequency was something on the order of 6 times per minute.Evidently the navigation filter in Winfrog was set as such to not update until a "good" position was obtained. This resultedin duplicate positions being recorded in the nav file until an "updated good" position was sensed.

Unknown

Not Tested