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Advanced Multibeam Ice Scour Surveys
01 Nov 2003
Net Survey of Claydon, Oxfordshire reports recent completion of two contrasting projects that have 'pushed the boundaries of multibeam technology', says Managing Director Duncan Mallace.
The first, for Pacific Engineering Company off Sakhalin Island, Russia, involved supplying personnel, software and multibeam hardware for ice scour surveys prior to pipelay operations.
Surveys were carried out using a Reson SeaBat 8125 sounder to identify sand wave fields just 3cm high while also determining 20-30cm-deep ice scours.
Nearly 1.8 billion soundings were acquired over 31 days at an average of 660 soundings per second. A combination of QINSy, CARIS HIPS and Fledermaus software suites handled all data management functions.
The second project, says Duncan Mallace, was completed on behalf of Wessex Archaeology of Salisbury in support of creating base maps for various high-profile wreck sites along the southern coast of England.
A SeaBat 8125 was once more used to secure very precise details of wrecks, with results being analysed by Fledermaus 3D visualisation software.
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