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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


Ice Restrictions Enforced in Sweden

  The Swedish Maritime Organisation has advised the following ice restrictions in force with effect from 18 January 2016: Karlsborg – Luleå Minimum ice class IB and 2000 dwt Haraholmen – Örnsköldsvik och Ångermanälven


30 Scientists to Study O&G in Arctic Ice, Vladivostok

Knowledge will allow young scientists in the future to become parties to large-scale projects for the development of the Arctic region Courtesy Arctic Info

Today Vladivostok-based Far Eastern Federal University (FENU) opened the International School of Ice Ice Mechanics to 30 students and young scientists from Russia, China, Korea, India, Indonesia and Norway.  They will study the basics of field development of oil and gas in the Arctic ice of


US, Canada Partner to Break Ice on Lower Great Lakes

Coast Guard Cutter Bristol Bay sits in the middle of Lake Erie as its crew takes ice liberty during a short break from ice breaking duties as part of Operation Coal Shovel, March 2015. The crew of the Bristol Bay, along with the Canadian Coast Guard Ship Griffon, escorted the motor vessel Algoma Hansa through a frozen Lake Erie. (U.S. Coast Guard photo by Nick Gould)

 U.S. and Canadian Coast Guard icebreaking crews kick off operation Coal Shovel Friday in the waters of the southern Great Lakes.   Operation Coal Shovel encompasses domestic icebreaking operations in southern Lake Huron, Lake St. Clair, the St


West Antarctic Ice Sheet: How Stable is it?

West Antarctic Ice Sheet Photo courtesy   Alfred Wegener Institute

Exceeding critical temperature limits in the Southern Ocean may cause the collapse of ice sheets and a sharp rise in sea levels A future warming of the Southern Ocean caused by rising greenhouse gas concentrations in the atmosphere may severely disrupt the stability of the West Antarctic Ice


Bureau Veritas/Russian Register to Class Yamal LNG Carriers

Image: DSME

Exporting LNG from Yamal in Russia’s high Arctic calls for a special type of LNG carrier never built before.    The new series of 15 Arctic-capable LNG carriers to be built in Korea’s Daewoo Shipbuilding & Marine Engineering (DSME) shipyard


New Tug for NY Power Authority

Daniel Joncaire II (Photo: BHGI)

A newly built 45-foot twin-screw tug Daniel Joncaire II has been launched for the New York Power Authority (NYPA), the vessel’s designer Bristol Harbor Group, Inc. (BHGI) announced today.   BHGI was awarded a contract by NYPA to engineer


Double Milestone for Great Lakes Shipyard

Joseph P. Starck, Jr., President, The Great Lakes Towing Company & Great Lakes Shipyard; Eduardo De Jesus Paiz Lemus, Presidente Junta Administrador & Gregg A. Thauvette, Vice President, Operations, The Great Lakes Towing Company (Photo: Great Lakes Shipyard)

Great Lakes Shipyard holds commissioning ceremony for NYPA tug and keel laying ceremony for harbor fug for Puerto Quetzal, Guatemala   Tug Daniel Joncaire II, the first of two tugboats to be built by the Great Lakes Shipyard for New York Power Authority – Niagara Project


Sea Ice Plays Pivotal Role in Arctic Methane Cycle

Sea ice forms a natural barrier on the Central Arctic Ocean, limiting gas exchange between water and atmosphere Courtesy AWI

  The ice-covered Arctic Ocean is a more important factor concerning the concentration of the greenhouse gas methane in the atmosphere than previously assumed. Experts from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) report on the newly discovered


Warm Water Mixing up Life in Arctic

Most surprising finding is that the thermally induced changes at the ocean surface can rapidly spread to affect life in the deep seas Courtesy Alfred Wegener institute

  AWI researchers’ unique 15-year observation series reveals how sensitive marine ecosystems in polar regions are to change The warming of arctic waters in the wake of climate change is likely to produce radical changes in the marine habitats of the High North


Second ice crossing opened In Taimyr

At the Taimyr ice started to operate a ferry across the river Dudinka Photo Arctic Info

  At the Taimyr ice started to operate a ferry across the river Dudinka road seasonal activities "Dudinka - Sock" at the site 0.00 km - 0.90 km. This was announced by deputy head of the municipal area - Head of Transport, Information and Communications Oleg Mozgunov.


PAO Sovcomflot Lays Keel for New Supply Vessel

Photo: SCF Group

Arctech Helsinki Shipyards Oy (part of United Shipbuilding Corporation) held a keel laying ceremony last week (17 December) for a new icebreaking platform supply vessel ordered by PAO Sovcomflot under a long-term agreement with Sakhalin Energy.   


Remains of Lost 1800s Whaling Fleet Found

Abandonment of the whalers in the Arctic Ocean, September 1871, including the George, Gayhead, and Concordia. This illustation originally ran in Harper’s Weekly in 1871. (Credit: Robert Schwemmer Maritime Library)

NOAA archaeologists have discovered the battered hulls of two 1800s whaling ships nearly 144 years after they and 31 others sank off the Arctic coast of Alaska in one of the planet's most unexplored ocean regions.   The shipwrecks, and parts of other ships


USCG Warns of Unsafe Ice

Unsafe Ice Courtesy USCG

  The Coast Guard is urging people to use extreme caution when venturing onto the ice across Lake Superior, St. Marys River, and the northern parts of lakes Michigan and Huron with the forecasted rain and snow predicted this weekend.


Russian Class for New FSRU

Russian Maritime Register of Shipping

A Floating Storage Regasification Unit (FSRU) will be built to the class of Russian Maritime Register of Shipping (RS). The agreement on classification of FSRU under construction has been signed between RS and Hyundai Heavy Industries, the Republic of Korea.   


USCG Begins Icebreaking in Western Great Lakes

Cutter Mackinaw (USCG file photo)

U.S. Coast Guard Sector Sault Ste Marie on Wednesday commenced Operation Taconite, an icebreaking mission launched in response to expanded ice growth in the commercial ports of western Lake Superior, Green Bay and the lower St. Marys River.   






 
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