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ICE FLOE

Programmed Multikopter Flies Autonomously Through Arctic

Alfred Wegener Institute programmed a Multikopter

  How do you get an aircraft in the far reaches of the Arctic Ocean to the goal, if the compass does not provide reliable location data? Engineers aboard the research icebreaker Polarstern of the Alfred Wegener Institute programmed a Multikopter so that he can navigate near the North Pole, despite declination of the Earth's magnetic field. A first successful test flight together with autonomous landing celebrated scientists recently on an ice floe. "The autonomous navigation is in high latitudes is a major challenge," says Sascha Lehmenhecker, engineer at the Alfred Wegener Institute for Polar and Marine Research, the Helmholtz Centre for Polar and Marine Research (AWI). "Navigation is by means of magnetic sensors. However, the field lines of the Earth's magnetic field show in pole near almost perpendicular to the ground, so that a precise navigation is difficult. For this reason, commercial Multikopter controls for inserts are unsuitable in polar regions, "said the engineer. Together with the two graduate students Michael straw Meier and Tobias Mikschl of the University of Würzburg developed Lehmenhecker the control of so-called Multikopter on. This is driven by a number of propellers, about half a meter large aircraft to be sold in the future on ice and after several hours of there own to fly back to a research ship. The special task: Both the ice floe and the ship move


Drifting Arctic Tankship Gets Icebreakers Escort

Tanker Nordvik: Photo courtesy of Khatanga Sea Trade Port

The “Nordvik”, which had been drifting in remote Arctic waters following a collision with an ice floe, is now being accompanied by icebreakers to its home port, reports the 'Barents Observer'. Citing the Russian Sea and River Transport Agency, Barents Obsever says that a total of 1800 litres of diesel oil was transferred from the “Nordvik” into the tanker “Boris Vilkitsky”. The two vessels are now accompanied by two nuclear-powered icebreakers


Tanker Grounding Update

On behalf of the Unified Command, the Alaska Department of Environmental Conservation (ADEC) issued a Situation Report stating that the tanker Seabulk Pride grounded in Cook Inlet near Nikiski. No pollution was reported initially. The tanker was apparently pushed aground by an ice floe. A Second Situation Report states that several tugs and a response barge are being mobilized. A small amount of oil was spilled when the tanker was pushed away from its mooring by the ice


Nichols Brothers Resumes Work

Nichols Brothers Boat Builders returned to work after the company laid off 185 employees Nov. 2. Shortly thereafter, the company filed for bankruptcy protection, a move necessitated by a big lawsuit filed by a disgruntled customer. While the bankruptcy issues are far from settled, Nichols Brothers was allowed to negotiate with individual boat owners to see that their projects, shut down on Nov. 2, could be completed.


This Day in Coast Guard History – Jan. 25

1799- Having existed essentially nameless for 8-1/2 years, Alexander Hamilton's "system of cutters" was referred to in legislation as "Revenue Cutters."  Some decades later, the name evolved to Revenue Cutter Service and Revenue Marine. 1940- The ocean station program was formally established on 25 January 1940 under orders from President Franklin Roosevelt.  The Coast Guard, in cooperation with the U. S


This Day in U.S. Coast Guard History – January 25

1799- Having existed essentially nameless for 8-1/2 years, Alexander Hamilton's "system of cutters" was referred to in legislation as "Revenue Cutters."  Some decades later, the name evolved to Revenue Cutter Service and Revenue Marine. 1940- The ocean station program was formally established on 25 January 1940 under orders from President Franklin Roosevelt.  The Coast Guard, in cooperation with the U. S


Submarine Force Participates in Ice Exercise 2007

Los Angeles-class fast attack submarine USS Alexandria (SSN 757) is submerged after surfacing through two feet of ice during ICEX-07, a U.S. Navy and Royal Navy exercise conducted on and under a drifting ice floe about 180 nautical miles off the north coast of Alaska. U.S. Navy photo by Chief Mass Communication Specialist Shawn P. EklundCommander, Submarine Force has announced the participation of USS Alexandria (SSN 757), home ported in Groton, Conn., in a joint U.S


Christening of Gemini, Eco-Friendly Ferry

PR121208lg_web.jpg

On Dec. 12, the San Francisco Bay Area Water Emergency Transportation Authority (WETA) christened the first of its fleet of ferries, Gemini, to enhance the region’s emergency response capability and water transit network. Representative Barbara Lee (D-Oakland) and WETA Board Chair Charlene Haught Johnson performed the christening ceremony. Ms. Haught Johnson applauded the Bay Area for coming together to forge strong partnerships to enable WETA to build a fleet of ferries that are


GAO: Limited Commercial Arctic Development Foreseen

Arctic Tow: File photo

Decreasing seasonal sea ice has opened up Arctic waters for longer periods with resulting potential economic opportunities in commercial shipping, cruises, commercial fishing, oil, and mining. In light of the importance of U.S. efforts to effectively manage Arctic issues, GAO was asked to examine U.S. actions related to developing and investing in Arctic maritime infrastructure, which it did without making any recommendations.


Huge Waves Measured for First Time in Arctic Ocean

J. Thomson / University of Washington

As the climate warms and sea ice retreats, the North is changing. An ice-covered expanse now has a season of increasingly open water which is predicted to extend across the whole Arctic Ocean before the middle of this century. Storms thus have the potential to create Arctic swell – huge waves that could add a new and unpredictable element to the region. A University of Washington researcher made the first study of waves in the middle of the Arctic Ocean


Damen Delivers Ice Class Tug to Lithuania

ASD Tug 2810 ICE  (Photo: Damen Shipyards)

The Damen Shipyards Group has delivered an ASD Tug 2810 ICE to Klasco Towage Assistance, an affiliate of Klaipeda Stevedoring Company (KLASCO). The largest tugboat service provider in the Port of Klaipeda (Lithuania), this is the company’s first purchase of a Damen tug


Strong Returns for Sovcomflot

Grand Aniva is one of two Sovcomflot LNG tankers chartered by the operator of the Sakhalin-2 project – Sakhalin Energy Investment Company (SEIC). The photo has been provided by SEIC.

 Russia’s biggest shipping company PAO Sovcomflot (SCF Group) surpassed its own expectations and went forward on both revenue and net profit in the first six months.   It has posted a gross revenue increase of 11.8 per cent in the first half of 2015 worth USD 754


Obama Pushes for US Icebreakers

File Image: Polar Star - one of the U.S. Coast Guards dwindling fleet of icebreakers.

President Barack Obama on Tuesday proposed a faster timetable for buying a new heavy icebreaker for the U.S. Arctic, where quickly melting sea ice has spurred more maritime traffic and the United States has fallen far behind Russian resources.  


Rolls-Royce to Design, Equip Canadian Stern Trawler

Image: Rolls-Royce

The shipbuilding company VARD Group AS in Norway has received an order from a Canadian company for a shrimp stern trawler to be designed and equipped by Rolls-Royce, whose portion of the deal is worth in excess of £6 million.   The fishing vessel


Russia Submits Vast Arctic Territory Claims to UN

Map by  National Snow and Ice Data Center

 Russia has submitted its bid for vast territories in the Arctic to the United Nations, AP reported as the Foreign Ministry saying.   The ministry said in a statement that Russia is claiming 1.2 million square kilometres (over 463


Russian Arctic Scientists to be Evacuated

The icebreaker “Kapitan Dranitsyn” left Murmansk on August 4th to pick up equipment and personnel from the floating research station “North Pole-2015”

  An icebreaker sailed from Murmansk yesterday to pick up 17 scientists after four months on an ice floe near the North Pole. The icebreaker “Kapitan Dranitsyn” left Murmansk on August 4th to pick up equipment and personnel from the floating research station “North


Russia Claims Ownership of the Arctic and North Pole

Putins geopolitical interests of Russia are connected with the Arctic. Photo by Arctic Ecology Commitee

 Russia, led by President Vladimir Putin, has re-submitted its petition to the United Nations claiming exclusive control over 1.2 million square kms (463,000 square miles) of the Arctic sea shelf, based this time on what its foreign ministry calls “ample scientific data”


Great Lakes Limestone Trade Strong

For the second month in a row, shipments of limestone on the Great Lakes topped 4 million tons in July, the Lake Carriers' Association (LCA) reported. This is the first time loadings have topped the 4-million-ton mark for more than one month in a shipping season since 2008.  


Vard to Build Stern Trawler for Canadian Client

Image: Vard

Vard Holdings Limited has secured a contract worth approximately NOK 350 million for the construction of one stern trawler for a new Canadian client.    The ice-classed vessel will be 79 meters long, 16.6 meters wide and is of Rolls-Royce NVC 374 design


Vard to Build Gillnetter for Breivik AS

Image: Vard

Norway-headquartered vessel designer and builder Vard Holdings Limited announced it has secured a NOK 60 million contract for the construction of a coastal fishing vessel for Norway’s Breivik AS. The new gillnetter vessel will be built at Vard Braila in Romania and is scheduled to be


US-flag Iron Ore Cargos Retreat Again in July

With the nation awash in dumped foreign steel, iron ore cargos carried by U.S.-flag Great Lakes freighters (lakers) fell again in July, according to the Lake Carriers’ Association  (LCA). Loadings totaled 4.7 million tons, a decrease of 10 percent compared to a year ago


Shipping Rules to Protect Arctic Ocean

Photo: Friends of the Earth U.S.

 Clear and consistent rules that enhance maritime safety and best preserve what is important to Alaskans will benefit the entire Arctic region now and far into the future, reports ADN.   Experts forecast that the volume of cargo coming through that route is likely to increase from 1


Thordon's Compac Ordered for 2 EcoCoasters

An artist’s impression of the VG EcoCoaster  design (Photo: Thordon Bearings)

Thordon Bearings’ Swedish distributor, Duwel Sweden, has signed a contract with Caterpillar Propulsion for the supply and installation of Thordon COMPAC seawater lubricated propeller shaft bearing systems to the two general cargo ships Dutch shipyard Royal Bodewes is building for


Passage to the High North – When Spray Matters

Albert Aalbers

Why bother about a bit of spray? In mild climate latitudes rain and spray water is hardly a concern; it will run off and the ship happily carries on. But going to the High North it’s different. With the economic development of the High North and Arctic areas


US Navy Sub Completes Arctic Deployment

The fast attack submarine USS Seawolf surfaces through Arctic ice at the North Pole. (U.S. Navy photo)

Fast-attack submarine USS Seawolf (SSN 21) returned to its homeport of Naval Base Kitsap-Bremerton August 21, following a six-month Arctic deployment during which it conducted routine submarine operations, including under-ice transits and under-ice operations.   






 
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