Scanning Sonar for Search and Survey

By Marine Technology Reporter
Wednesday, March 12, 2014

When an SUV went off a Minnesota bridge and into a river in January the local sheriff’s office was immediately notified and the Winona County Dive Team dispatched. Two bodies were quickly recovered from the vehicle, both wearing seatbelts, but two others were missing. The third victim was found the next day, but the fourth could not be located. Frigid water and limited visibility made a large scale search operation with divers nearly impossible. A decision was made to call in nearby Washington County Sheriff’s Department and its underwater robot. Two years earlier the department had acquired JW Fishers SeaOtter-2 ROV which has two cameras, four thrusters and a SCAN-650 scanning sonar. The SCAN-650 allows the operator to see much further than the video camera because the sonar’s sound wave sweeps a 200 ft. diameter circle around the ROV. The wave bounces off any object on the bottom and is sent topside where it produces an image of the object on a laptop computer. Using their ROV equipped with scanning sonar the Washington team was finally able to locate the fourth victim 125 ft. from where the vehicle entered the water and on the opposite side of the bridge.  www.jwfishers.com

(As published in the March 2014 edition of Marine Technology Reporter - www.seadiscovery.com)
 

Maritime Reporter July 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

Japanese Technology Helps Farmers to Changes in Climate

The Japanese technology firms are using their experience in saving energy and in cloud technology to help farmers cope with changes in climate, cheaper imports and declining labor.

Kvaerner in Statoil Unmanned Platform Project

Kvaerner say that Statoil has awarded it a concept study related to a standardised, unmanned dry tree wellhead platform for the Oseberg Future Development project.

TMT CEO Files $100m IP Suit Over Vessel Sale

Hsin-Chi Su, Chairman and CEO of Today Makes Tomorrow Group (TMT) launched a suit in Texas federal court on July 28, 2014, alleging that a planned bankruptcy sale of three company ships, including M.

New Products

Servowatch to Showcase New AMC Range at SMM

Servowatch Systems, a U.K.-based business unit of the Electrical and Automation division of India’s engineering giant Larsen & Toubro, said its exhibition stand

Ferguson Norge Unveils New NORSOK Workshops

As a result of market demand for NORSOK workspace modules, Ferguson Norge, specialists in the rental of DNV 2.7-1 / EN 12079 certified offshore containers, refrigeration/freezer modules,

Keppel Delivers 4th Jackup Rig to Qatar

Keppel FELS Limited (Keppel FELS) has delivered its fourth jackup rig, "Dukhan", to Gulf Drilling International Ltd. q.s.c. (GDI) of Qatar nine days ahead of schedule,

Environmental

Japanese Technology Helps Farmers to Changes in Climate

The Japanese technology firms are using their experience in saving energy and in cloud technology to help farmers cope with changes in climate, cheaper imports and declining labor.

MARAD: Total Fuel Cycle Study for Natural Gas

The Maritime Administration (MARAD) released a study that evaluates total fuel cycle emissions for natural gas versus conventional marine fuels. Results showed

Caribbean Storm Likely to Strengthen, Veers Away from US

A low-pressure system moved over Puerto Rico on Friday and is expected to veer northeast away from the U.S. East Coast but still has an 80 percent chance of forming

Patrol Boats

Ecuador Coastguard Orders Damen Patrol Boats

Damen announced it has recently signed a contract with AstillerosNavalesEcuatorianos (Astinave) to construct two Damen Stan Patrols (Spa) 5009 for the Ecuadorian Coastguard.

MN 100: Brunswick Commercial and Government Products

420 Megan Z. Ave Edgewater, FL 32132 Telephone: 386 423 2934 E-mail: kelsey.nemeth@whaler.com Website: www.brunswickcgp.com CEO/President: Huw Bower Number

Update to Fire Damage to Australian Patrol Boat

Armidale Class Patrol Boat HMAS Bundaberg suffered significant damage due to a fire which occurred on Monday, August 11, 2014 in Brisbane. The boat was undergoing

Marine Equipment

Polynesian Shipping Sold to Neptune Pacific Line

The Board of Polynesian Shipping Line Limited, Apia informed   that the business and the Company’s associated investments have been sold to Neptune Pacific Line Limited.

EBDG Completes Repower of COLUMBIA

Elliott Bay Design Group (EBDG), a leading naval architecture and marine engineering firm with offices in Seattle, New Orleans and Ketchikan, Alaska today announced

Mexican Navy Delegation Visits NSSA

The U.S. Navy reported that its Norfolk Ship Support Activity (NSSA) welcomed the Mexican Navy Delegation to Building CEP-200, Naval Station Norfolk, Aug. 21 for

Maritime Safety

USCG Boatcrew Searching for Burglary Suspect

U.S. Coast Guard (USCG) search-and-rescue crews are currently searching for a burglary suspect in the vicinity of the Rickenbacker Causeway near Miami, Fla. Friday morning.

Massive Haitian Refugee Rescues off Bahamas

Coast Guard crews and Royal Bahamian Defence Force (RBDF) rescued more than 400 Haitians illegally migrating in three separate at sea interdictions in the span of 11 days, informs the US Coast Guard.

Maersk Line Still the Leading Carrier on Reliability in Q2

During the second quarter, the overall industry reliability has improved. However, Maersk Line is pleased to have improved their performance so that they can

Ocean Observation

Atlantic Slows Warming, Temperature Rises Seen Resuming from 2030

The Atlantic Ocean has masked global warming this century by soaking up vast amounts of heat from the atmosphere in a shift likely to reverse from around 2030 and spur fast temperature rises,

Storm near Lesser Antilles Could Develop into cyclone

An elongated area of low pressure located about 350 miles east of the Lesser Antilles has a 50 percent chance of becoming a tropical cyclone in the next 48 hours, the U.

Two-way Route in the Great Barrier Reef and Torres Strait

The IMO-adopted ship routeing measure to enhance the safety and efficiency of navigation and protect the region’s sensitive marine environment will come into

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Naval Architecture Offshore Oil Pipelines Pod Propulsion Port Authority Ship Simulators Shipbuilding / Vessel Construction
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.0951 sec (11 req/sec)