Wharf-Building Equipment Arrives Antarctica
A cargo ship loaded with 4,500 tonnes of steel and construction equipment required to build a new Antarctic wharf has arrived at British Antarctic Survey (BAS)'s Rothera Research Station.Staff awaiting its arrival cheered as the DS Wisconsin pulled alongside, guided for the final few hours through sea ice by the ice-strengthened RRS Ernest Shackleton. Work began immediately on the huge task of unloading the cargo, which is likely to take around two weeks.The ship, containing plant, 83 containers, permanent and temporary materials and 1,000 tonnes of steelwork, departed the UK in late November for her month-long journey.Her arrival at Rothera is a major milestone in the modernisation of the UK’s Antarctic infrastructure…
Expedition to Glaciers of Antarctic
How has the West Antarctic Ice Sheet changed in response to alternating warm and cold time periods? And what does it mean for the sea level – today and tomorrow? Pursuing answers to these key questions, 50 researchers on board the Alfred Wegener Institute’s research vessel Polarstern are going to depart from Punta Arenas (Chile) on 6 February 2017, bound for the Amundsen Sea – the region of the Antarctic currently characterised by the most massive and rapid loss of ice. In the course of the expedition, the seafloor drill rig MARUM-MeBo70 will be used in the Antarctic for the first time. Rifts in the Larsen Ice Shelf and the Brunt Ice Shelf, which is home to the UK’s Halley Research Station, are being closely observed.
Scientists Say Antarctic Glaciers in 'Irreversible' Thaw
Vast glaciers in West Antarctica seem to be locked in an irreversible thaw linked to global warming that may push up sea levels for centuries, scientists said on Monday. Six glaciers, eaten away from below by a warming of sea waters around the frozen continent, were flowing fast into the Amundsen Sea, according to the report based partly on satellite radar measurements from 1992 to 2011. Evidence shows "a large sector of the West Antarctic ice sheet has gone into a state of irreversible retreat"…
Iceberg Poses Threat To Mariners In Southern Ocean
A large iceberg has entered shipping lanes between the Antarctic Peninsula and South America. The iceberg, named B-10A, measures 24 by 48 statute miles and could pose a hazard for mariners operating in the Southern Ocean, the National Ice Center reported. B-10A is presently located in the vicinity of Latitude 58 degrees, 36 minutes South, Longitude 57 degrees West, and is drifting southeast at approximately 7 to 9 miles per day. Smaller icebergs are breaking off B-10A as it moves into relatively warmer water. A cautionary zone has been established 165 miles in radius around the center point of B-10A. B-10, the “parent” iceberg from which B-10A formed, was once a piece of the Thwaites Ice Tongue, an extension of the Thwaites Glacier.
