Lyons, Anthony P

Weber, Thomas C.

English

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University of New HampshireUniversity of New Hampshire Scholars' RepositoryCenter for Coastal and Ocean Mapping Center for Coastal and Ocean Mapping2006A multibeam survey of mid-Seneca Lake:bathymetry, backscatter, and invasive speciesThomas C. WeberUniversity of New Hampshire, Durham, thomas.weber@unh.eduAnthony P. LyonsPennsylvania State University - Main CampusFollow this and additional works at: https://scholars.unh.edu/ccomPart of the Oceanography and Atmospheric Sciences and Meteorology CommonsThis Conference Proceeding is brought to you for free and open access by the Center for Coastal and Ocean Mapping at University of New HampshireScholars' Repository. It has been accepted for inclusion in Center for Coastal and Ocean Mapping by an authorized administrator of University of NewHampshire Scholars' Repository. For more information, please contact nicole.hentz@unh.edu.Recommended CitationWeber, Thomas C. and Lyons, Anthony P., "A multibeam survey of mid-Seneca Lake: bathymetry, backscatter, and invasive species"(2006). Finger Lakes Research Conference (FLRC). 380.https://scholars.unh.edu/ccom/380A MULTIBEAM SONAR SURVEY OF MID- SENECA LAKE: BATHYMETRY, BACKSCATTER, AND INVASIVE SPECIESTom WeberCenter for Coastal and Ocean MappingUniversity of New HampshireTony LyonsApplied Research LaboratoryPenn State UniversityMultibeam Survey Area 5000 m  4000 m •The survey region encompassed area of the of the FNC-3A Aug. 2005 experiment•Track-lines with 50 and 100 m spacing were run at an average speed of  8 knots.  •Resolution of approximately 3 m x 3 m was achieved. •Underwater video and grab samples obtained during the survey.  •Approximate experiment timeline:– 12 hours required to mount, setup and test equipment– 20 hours for survey.– 4 hours for ROV operations.– 4 hours for cleanup.0 1 2 3 4 5x 1045010015020025030035040045050055011.522.533.5sample numberlog αLog of the estimated shape parameter versus sample number for FNC-3A (MM-2) environmental acoustic data.Ping numberGoal: collect bathymetry and scattering strength data to complement data collected as part of the 2005 FNC-3A experiment. Equipment and Personnel• Facilities:– NUWC Seneca Lake Sonar Test Facility (used workboat with generator)• Equipment:– RESON 8101 240 kHz calibrated multibeam– RBR CTD data logger– Coda Octopus F180 Attitude and Positioning System• Personnel: – Anthony P. Lyons– Thomas C. WeberMountingNavigationData AcquisitionTracklinesBathymetry Resultsdepth (m)Bathymetry ResultsScattering Strength ResultsScattering Strength ResultsROV OperationsROV Video Frame Grabs~200 feet water depth~130 feet water depth ~70 feet water depthGrab SamplerGrab Samples with Quagga(?) Mussel ShellsView of SMP from Anthony Road Vineyard

A multibeam survey of mid-Seneca Lake: bathymetry, backscatter, and invasive species

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A multibeam survey of mid-Seneca Lake: bathymetry, backscatter, and invasive species

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