LINKES
type: Concept
in scheme: projects
definition: 2005 Field season: During 1-10 February, the RV Ernest surveyed over 275 n. mi. collecting acoustic backscatter data. At the same time, the RV Yuzhmorgeologiya completed nearly three passes through the nearshore-to-shelf-break survey grid. Stations throughout the survey were occupied at night where CTD and net tow stations were conducted. Also included in this field season were preliminary ... tests of a AUV (Fetch I, Sias-Patterson) which was deployed to conduct bathymetry mapping and determine whether krill swarms could be detected by the vehicle. The AUV work was conducted with Dr. Mark Patterson of VIMS and Sias-Patterson and the Advanced Survey Technologies group at SWFSC led by Dr. David Demer. Except for a near gale which occurred exactly mid-way during the survey period, good weather allowed for extensive survey effort. In addition, instrumented buoys were deployed to test a new engineering design of the buoys used in previous field seasons. Due to technical issues, only limited data were collected during the buoy deployment. 2006 Field season: During 1-10 February, the RV Ernest surveyed over 264 n. mi. collecting acoustic backscatter data. At the same time, the RV Yuzhmorgeologiya completed two passes through the nearshore-to-shelf-break survey grid. Stations throughout the survey were occupied at night where CTD and net tow stations were conducted. An additional small vessel (RV Roald) was deployed with a SIMRAD MS 20 Multibeam echosounder to map bathymetry of the nearshore area and to study krill swarm characteristics. Joint operations (specific survey lines) were conducted with all three vessels). Poor weather and sea state conditions resulted in the loss of two days of survey effort at the beginning and 1 day at the end of the period. We still managed to conduct a comparable amount of survey effort as in 2005 due to few (if any) equipment or vessel malfunctions. Instrumented buoys were deployed and collected data over several days of the survey period.…

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type: Concept