{"id":4807,"date":"2023-06-27T15:20:56","date_gmt":"2023-06-27T15:20:56","guid":{"rendered":"https:\/\/asp.denireilly.com\/New\/?page_id=4807"},"modified":"2023-07-07T10:45:31","modified_gmt":"2023-07-07T10:45:31","slug":"sidescan","status":"publish","type":"page","link":"https:\/\/asp.denireilly.com\/index.php\/sidescan\/","title":{"rendered":"SideScan"},"content":{"rendered":"
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Side-Scan Surveys<\/strong><\/h3>\n
SIDE-SCAN SONAR IS AN EFFECTIVE TOOL FOR IDENTIFYING SEABED OBJECTS OR ITEMS OF DEBRIS AS IT CREATES AN IMAGE OF THE SEA FLOOR, USING SOUND ENERGY AND STRENGTH OF SIGNAL RETURN TO COVER LARGE AREAS QUICKLY AND COST-EFFECTIVELY.<\/strong><\/h5>\n <\/div>\n <\/div>\n
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Investment in the industry-leading EdgeTech 4125 Dual Frequency side-scan sonar system, coupled with RTK GPS positioning and Chesapeake SonarWiz acquisition and mosaic software allows us to create high resolution imagery and geo-referenced\n mosaics of the seabed.<\/p>\n

This information can be used for a wide variety of purposes, including the creation of nautical charts and the detection and identification of underwater objects and bathymetric features.<\/p>\n

Side-scan sonar produces a detailed picture of the seafloor or riverbed, regardless of water clarity. The system, which may be towed from a surface vessel or mounted on a ship\u2019s hull, emits fan shaped pulses down towards the seafloor\n across a wide angle, perpendicular to the path of the sensor through the water. This produces high quality imagery but cannot provide depth information. High resolution images are sent from the towfish to a topside computer for both\n real-time display and data storage.<\/p>\n

Areas of hard return, such as rock outcrops, reflect more sound and have a stronger return signal than softer areas such as sand or mud. Areas with stronger returns are generally shown on plan darker than areas with lesser returns.\n The \u2018backscatter\u2019 (intensity) returns can be used to show the seabed geomorphology in either monochrome or colour formatted charts.<\/p>\n

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Hydrographic Survey Services<\/strong>\n
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