Technology Demonstration Report (TDR) for underwater survey equipment in support of Explosive Remnants of War (EWR) technical survey operations. Marine Magnetics’ SeaQuest and AUV Explorer were demonstrated.
Report summary Goal: A boat-towed survey to test the Synapse Magnetometer Array System feature set, survey experience, and performance. Sea Trial Date: Spring, 2023 Location: Gurnard Bay, The Solent, UK for its relatively flat bottom, and average depth of 20m. Tow Vessel: 12-meter-long, equipped for nearshore geophysical survey with state-of-the-art instrumentation (auto-pilot, MultiBeam Echo sounder (MBES) and Differential GPS). […]
The conditions were completely unsuitable for boattowed survey, but the Iver2 had no problem. AUVs are powerful platforms for marine survey, wielding an arsenal of sensors and giving the ability to get closer to investigated targets reliably, consistently and inexpensively. Magnetometers have always been a particular challenge to mount on AUVs because of their strong […]
Source: First Break 2000
Reprinted from First Break 2000 Written by Fugro LCT Marine magnetometer said to minimise seismic interference risk. Fugro- LCT is claiming a significant breakthrough in the acquisition of marine magnetic data with its GUNMAG marine magnetometer system. The company says that magnetic surveys are most economically conducted in conjunction with seismic acquisition, and for some […]
Brian S. Anderson* (Fugro-LCT), Mark B. Longacre (MBL, Inc.) and Patrick Quist (Fugro-LCT) Summary During a marine seismic survey in 1998, conducted offshore Oman for Triton Oman Inc., a marine magnetometer was used to collect a comparison a new magnetic data set for purposes of comparison with a previously flown high-resolution aeromagnetic survey. Profile analysis […]
By Natasja Verboom, NeSA B.V., Holland; and Malcolm Morgan & Justin Dunning, Chelsea Instruments Ltd, UK By mounting a magnetometer on a Chelsea Instruments’ NuShuttle undulating towed body, Holland ’s Rijkswaterstaat was able to locate buried wrecks that could not be pinpointed by conventional seismic techniques. THE WESTERSCHELDE, in the South West of the Netherlands, […]
Seismic methods get a boost from magnetic sensing equipment By Doug Hrvoic, President and co-founder of Marine Magnetics Corporation The Acquisition of marine magnetic data on seismic exploration vessels has increased dramatically over the last five years. More sensitive magnetometer equipment, combined with new software processing methods are proving that marine magnetic data can enhance […]
J.I. Boyce*, E.G. Reinhardt*, A. Raban† and M.R. Pozza * School of Geography and Geology, McMaster University, Hamilton, ON, Canada, boycej@mcmaster.ca. †Recanati Institute of Maritime Studies, University of Haifa, Mount Carmel, Israel. Ψ Marine Magnetics Corporation,Richmond Hill, ON, Canada, matt@marinemagnetics.com. Abstract The harbour built by King Herod’s engineers at Caesarea represented a major advance in […]
Published in: The International Journal of Nautical Archaeology (2004) 33.1: 122–136 doi: 10.1111/j.1095-9270.2004.010.x Joseph I. Boyce and Eduard G. Reinhardt. School of Geography and Geology, McMaster University, Hamilton, Ontario, Canada L8S 4K1 Avner Raban Recanati Institute for Maritime Studies, University of Haifa, Mount Carmel, Haifa, 31905 Israel Matthew R. Avner Raban. Recanati Institute for Maritime Studies, […]
By Doug Hrvoic and Matthew Pozza, Marine Magnetics Magnetic surveying is a common methodology for small-object detection applications such as UXO clearance, pipeline location and archaeology. Now gradiometers using Overhauser technology are doing the job faster and better by directly measuring the analytic signal – a high-resolution data form that is ideal for resolving small […]