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 March 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

US Navy to Roll out Underwater Spy Satellites

The robotic series that remade crusade in skies will shortly extend to a low sea, with underwater view “satellites,” drone-launching pods on a sea building and unmanned ships sport submarines,

India May Add Japanese Soryu-Class Submarines to its Fleet

India is reportedly considering a project to incorporate six Japanese Soryu-class diesel-electric submarines into its fleet, says The Japan Times.   The Defense

Austal Graduates 48 4-Yr Apprentices

Austal USA combined two classes to graduate a total of 48 members of Austal’s cutting-edge four-year apprenticeship program yesterday at a formal ceremony held at the Arthur R.

Environmental

USCG Flush Ice down River Systems to Facilitate Shipping

The Coast Guard cutter fleet is flushing ice through the Great Lakes river systems to prevent ice jams and facilitate commercial shipping as the shipping season

Chile Desert Rains Sign of Climate Change

The heavy rainfall that battered Chile's usually arid north this week happened because of climate change, a senior meteorologist said, as the region gradually

Mexico Unveils National Strategy ahead of Paris Climate Talks

Mexico on Friday said it will cap its greenhouse gas emissions by 2026, becoming one of the first countries to formally submit its national climate plan the

Patrol Boats

Mediterranean Rescue Operations Strain Shipping

The Wall Street Journal ran a story yesterday describing how the increasing number of seaborne migrants making the journey from Africa to Europe has not only

17 Countries for Maritime Security Training in Indonesia

Representatives from 17 countries would take part in the sixth Maritime Security Desktop Exercise that is scheduled to be held in Yogyakarta, Indonesia from March 30 to April 1.

RIBCRAFT Delivers Boat to Decatur Police Department

RIBCRAFT, manufacturer of professional grade rigid inflatable boats (RIBs) for safety professionals, law enforcement, and military agencies, announced the delivery of a specialized RIBCRAFT 7.

Marine Equipment

Scandlines Ferry Back in Service by End June

The damaged Scandlines ferry M/V Prinsesse Benedikte is being repaired at the Polish shipyard Remontowa and is expected to be ready before the end of June 2015.

US Navy to Roll out Underwater Spy Satellites

The robotic series that remade crusade in skies will shortly extend to a low sea, with underwater view “satellites,” drone-launching pods on a sea building and unmanned ships sport submarines,

Viking Bags Charter Deal for AHTS Brage Viking

Viking Supply Ships has entered into a contract with an Oil major for the charter of “Brage Viking” commencing 1stof April 2015. The duration is for 2 years and 8 months firm,

Maritime Safety

Obangame Express 2015 Concludes in the Gulf of Guinea

Maritime forces from Gulf of Guinea nations, Europe, South America, and the United States and several regional and international organizations concluded the multinational maritime exercise,

Vietnam's Submarines to Counter China?

Vietnam's new submarines could alter the balance in the South China Sea quite dramatically, say maritime security analysts.   Vietnam and China have long contested

Is China Building a Naval Base in Africa?

Recently, The Namibian reported the existence of a "confidential letter from Namibia's ambassador to China, Ringo Abed, to Namibia's foreign minister stating that

Surveyors

US Navy to Roll out Underwater Spy Satellites

The robotic series that remade crusade in skies will shortly extend to a low sea, with underwater view “satellites,” drone-launching pods on a sea building and unmanned ships sport submarines,

China Unveils Action Plan on Maritime Silk Road

China has unveiled the principles, framework, and cooperation priorities and mechanisms in its Maritime Silk Road initiative in a bid to enhance regional connectivity

TDDCL Seeks Input for New Repair Yard

Trinidad Dry Dock Company to develop new ship repair yard at Port of Spain; company requests Expressions of Interest for Environmental Impact Assessment and Geotechnical

Ocean Observation

US Navy to Roll out Underwater Spy Satellites

The robotic series that remade crusade in skies will shortly extend to a low sea, with underwater view “satellites,” drone-launching pods on a sea building and unmanned ships sport submarines,

China Unveils Action Plan on Maritime Silk Road

China has unveiled the principles, framework, and cooperation priorities and mechanisms in its Maritime Silk Road initiative in a bid to enhance regional connectivity

China Maritime Silk Road to Touch India for Namesake

Chinese officials on Saturday fleshed out some details for the country's ambitious 21st Century Maritime Silk Road (MSR) project in its “one belt, one road,” action plan.

 
 
Maritime Careers / Shipboard Positions Maritime Security Naval Architecture Navigation Pipelines Port Authority Salvage Ship Repair Shipbuilding / Vessel Construction Sonar
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: 0.1078 sec (9 req/sec)