CG Arctic Continental Shelf Research

Tuesday, August 11, 2009

A Coast Guard Cutter Healy boatcrew along with a scientist from Scripps Institution of Oceanography recovered a sonobuoy, Aug. 8, 2009, while on a scientific research mission in the Arctic Ocean.

The 1,100-pound sonobuoy spent nearly a year on the ocean floor at a depth of almost 1,000 feet measuring ambient noise at its location. 

To locate and recover the device the Healy was steered to the position the sonobouy was deployed a year ago.  A signal was sent from the cutter to the buoy that commanded it to release the ballast weights that held it to the bottom of ocean.

After a 10-minute assent, the device reached the surface and was located by the boatcrew.  The crew towed the buoy to the stern of the Healy where it was hoisted onto the ship using a large a-frame crane.

While deployed, the sonobouy recorded sounds made by whales, seals and other marine mammals.  It also monitored sounds created by movements of ice sheets above and the sea floor below.  This information will be used to help scientists understand the natural sound level in the ocean.

The Healy’s current mission is of part of the U.S. Extended Continental Shelf Task Force’s efforts to determine the outer limits of the U.S. continental shelf.

The Canadian Coast Guard Ship Louis S. St.-Laurent is scheduled to join the Healy Aug. 10, 2009, to aid in collecting data that will used by both countries.

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

Coast Guard

China, Russia Conclude Naval Drill

Russia and China naval forces concluded their first-ever joint military exercise in the Mediterranean Sea this morning, according to an online news briefing from the Chinese Defense Ministry.

Malaysia Orders Migrant Rescues, Thailand Says No to Shelters

Malaysian Prime Minister Najib Razak said on Thursday he had ordered the navy to conduct search and rescue missions for thousands of migrants adrift at sea as Thailand's

US: South China Sea Reclamations Stoke Instability

China's land reclamation around reefs in the disputed South China Sea is undermining freedom and stability, and risks provoking tension that could even lead to conflict, U.

Electronics

K-Sim Engine Chosen for Malaysia's Defense University

The National Defense University of Malaysia has selected Kongsberg Maritime’s Engine Room Simulator platform K-Sim Engine for its facility in Kuala Lumpur. The contract,

NAVTOR AS, Nautic AB Launch Complete Navigation Solution

E-navigation specialist NAVTOR has joined forces with Nautic AB, a provider of navigational equipment, charts and publications to the Swedish market, to launch NAVTOR NAUTIC AB.

Danelec to Lead Working Group in EU’s EfficienSea2

Danish marine electronics company Danelec Marine informs it will oversee a working group in the European Union (EU) EfficienSea2 maritime innovation project designed

 
 
Maritime Security Maritime Standards Naval Architecture Navigation Pipelines Pod Propulsion Port Authority Ship Electronics Ship Repair Shipbuilding / Vessel Construction
rss | archive | history | articles | privacy | 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: 0.1600 sec (6 req/sec)