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www.sea-technology.com March 2015 / st 5 The Worldwide Information Leader for Marine Business, Science & Engineering SEA TECHNOLOGY® ©Copyright 2015 by Compass Publications, Inc. Sea Technology (ISSN 0093-3651) is published monthly by Compass Publications, Inc., Suite 1010, 1600 Wilson Blvd., Arlington, VA 22209; (703) 524-3136; FAX (703) 841-0852. All rights reserved. Neither this publication nor any part of it may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior permission of Compass Publications Inc. Periodicals postage paid at Arlington, Virginia, and additional mailing offces. Subscrip- tions may be purchased at the following rates: domestic, $60 one year; $80 two years; foreign air mail, $133. Single copies $4.50 plus shipping and handling (current issue only). POSTMASTER: send address changes to Compass Publications, Inc., P.O. 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Editorial .......................................................7 Soundings ...................................................9 Capital Report ...........................................47 International ..............................................48 Ocean Business .........................................50 Ocean Research ........................................52 Navy Currents ...........................................53 Product Development ...............................54 Marine Electronics .....................................56 Marine Resources ......................................58 Offshore Oil & Ocean Engineering ............60 Environmental Monitoring .........................61 Marine Renewables ...................................62 Meetings ...................................................63 Contracts ...................................................64 People .......................................................65 ST Looks Back ...........................................66 Professional Services Directory ..................67 Soapbox ....................................................69 Advertiser Index ........................................70 COVER —A surface model of a combined multibeam bathymetric and aerial survey. The site is a 1-square- kilometer coastal inlet situated in the north of Scotland. The survey was carried out utilizing a R2Sonic (Austin, Texas) 2024 MBES and a Trimble (Sunnyvale, California) UX5 drone. The survey was processed within Hypack (Middletown, Connecticut) HYSWEEP software and surveyed by Gordon Campbell from Aspect Land & Hydro- graphic Surveys Ltd. (Irvine, U.K.). (Photo Credit: Hypack Inc.) NEXT MONTH —Shell Marine lubricant technical services bring operating dividends ... Differential pressure transducers for hazardous locations ... The Arctic as the next global energy powerhouse ... NOIA oil and gas review ... Conference Previews: AUVSI, OCEANS'15 Genova, Offshore Technology Conference. March 2015, Volume 56, No. 3 Visit our website at www.sea-technology.com for online versions of feature articles and news departments. The editorial staff can be contacted at oceanbiz@sea-technology.com. 10 SHIPVIEW SIMPLIFIES TRACKING OF GLOBAL SHIPPING Graham Stickler (exactEarth) describes a user-friendly software service that maps big data quickly via the Web. 13 SURVEYING WITH AIRBORNE MULTISENSOR MAGNETIC GRADIOMETER Sean Scrivens (Aqua Survey Inc.) explains using airborne magnetic surveying to pinpoint unexploded ordnance. 17 THE IMPORTANCE OF EFFECTIVE DREDGE MONITORING Dr. Richard Williams and Becky Childs (OSIL) review why port maintenance dredging is essential for continuous safe navigation. 23 COPERNICUS DOWNSTREAM SERVICE SUPPORTS NATURE-BASED FLOOD DEFENSE Dr. Edward P. Morris, Dr. Jesus Gomez-Enri (University of Cádiz, Spain) and Dr. Daphne van der Wal (Royal Netherlands Institute for Sea Research) discuss the use of Sentinel Earth observation satellites for coastal needs. 27 CORRECTING NAVIGATION DATA OF SHALLOW-DIVING AUV IN ARCTIC Uwe Wulff and Thorben Wulff (Alfred Wegener Institute) demonstrate how an algorithm improves data quality of biogeochemical research. 31 SOCIB CONTINUOUS OBSERVATIONS OF IBIZA CHANNEL USING HF RADAR Dr. Arancha Lana, Dr. Joaquín Tintoré (Mediterranean Institute for Advance Studies) and Dr. Vicente Fernandez (freelance consultant) examine technology for the characterization and quantification of surface currents. 35 NOAA HIGH-FREQUENCY RADAR SURFACE CURRENTS WEB PRODUCT Gregory Dusek, Paul Fanelli and Christopher Paternostro (NOAA) outline a new product that aims to expand the HF radar user base. 39 MINIATURE VERSUS SURVEY-GRADE INERTIAL SENSORS Alexis Guinamard, Hélène Leplomb (SBG Systems) and Gilles Dandec (CADDEN) compare test performance results of Ellipse and Ekinox models. 43 SURFACE DETECTION FOR RECOVERY OF UUVS Kevin Hardy (Global Ocean Design) and Brock Rosenthal (Ocean Innovations) explore using beacons to locate a UUV on the surface. Undersea Systems that Deliver Success in the Deep Ocean Leaders in Low Logistics, High Performance Systems A Teledyne Marine Company See us at Ocean Business Stands T5 and B2 www.teledynemarinesystems.com Profling Floats Autonomous Undersea Gliders Autonomous Undersea Vehicles Remotely Operated Vehicles Flotation and Releases Communication and Positioning Deep Survey Systems