March 2008 Issue

ELECTRONIC CHARTING; VESSEL
MANAGEMENT; PORTS & HARBORS;
DREDGING; HOMELAND SECURITY
Volume 49, No. 3

COVER
Composite image of a bathymetric surface from CARIS (Fredericton, Canada) hydrographic information processing software displaying contours and soundings in an electronic navigational chart format and an inverted photograph of the Manhattan skyline. (Photo courtesy of CARIS.)

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Feature Articles

ADDRESSING THE NEED FOR BATHYMETRIC DATA MANAGEMENT
Frederic Lavoie (Canadian Hydrographic Service) and Karen Cove (CARIS) explore a new solution for bathymetric data assessment, storage and management needs.

AIRBORNE LIDAR HYDROGRAPHIC SURVEY FOR HOMELAND SECURITY
Mark Sinclair (Tenix LADS Corp.) reviews a method for surveying remote, uncharted areas in Australia’s Torres Strait.

INSTRUMENTATION FOR UNDERWATER IN-SITU RADON ANALYSIS
Dr. Christos Tsabaris, Aggelos Mallios and Dr. Evangelos Papathanassiou (Hellenic Centre for Marine Research) describe the design and application of an underwater in-situ gamma-ray spectrometer.

NEW GENERATION OF ELECTRONIC CARD SYSTEMS: THE 4D CARD
Capt. Alain Richard (Institut Maritime du Québec) introduces new technology to manage the passage of ships in confined water with the tides’ effects.

OCEANS '08 MTS/IEEE KOBE-TECHNO-OCEAN '08
—Conference Preview

SUPPRESSING RADIO FREQUENCY INTERFERENCE IN HF RADARS
Dr. Klaus-Werner Gurgel (University of Hamburg Institute of Oceanography) and Dr. Yves Barbin (Laboratoire de Sondages Electromagnétiques de l’Environnement Terrestre) propose a four-step method for reducing RFI impact on HF radars.

DEVELOPING A SEDIMENT SAMPLING ROV FOR THE DEEPEST OCEAN
Dr. Shojiro Ishibashi and Dr. Hiroshi Yoshida (Japan Agency for Marine-Earth Science and Technology) discuss a new submersible that could be capable of diving to depths of more than 10,000 meters in the Mariana Trench.

CORRECTION:
In February’s Ocean Business section on page 72, Teledyne Instruments Inc. (Thousand Oaks, California) was mistakenly referred to as Teledyne RD Instruments Inc. (Poway, California).

NEXT MONTH:
Extreme wave effects on deepwater floating structures …Canadian Hydrographic Conference and National Surveyor’s Conference preview...Transporting science equipment and samples using benthic elevators...Determination of the viability of early stage tidal stream generators...Offshore Technology Conference preview...Potential of offshore wind energy in Australia...Teledyne Marine company profile.