The North-East Passage, the sea route along the North coast of Russia, is expected to be free of ice early again this summer. The forecast was made by sea ice physicists of the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association based on a series of measurement flights over the Laptev Sea, a marginal sea of the Arctic Ocean.
Amongs experts the shelf sea is known as an “ice factory” of Arctic sea ice. At the end of last winter the researchers discovered large areas of thin ice not being thick enough to withstand the summer melt.
"These results were a great surprise to us“, says expedition member Dr. Thomas Krumpen. In previous measurements in the winter of 2007/2008 the ice in the same area had been up to one metre thicker.
The abbreviation SMOS (Soil Moisture and Ocean Salinity) is actually a satellite mission to determine the soil moisture of the mainland and salinity of the oceans. However, the satellite of the European Space Agency (ESA) can also be used to survey the Arctic sea ice. “The satellite can be used above all to detect thin ice areas, as we have seen them, from space“, explains Thomas Krumpen.
The SMOS satellite measurements from March and April of this year confirm that the thin ice areas discovered by the expedition team were no locally restricted phenomenon: “A large part of the North-East Passage was characterised by surprisingly thin ice at the end of the winter“, says Thomas Krumpen.
The new findings of the successful winter expedition give cause for concern to the scientists: “These huge new areas of thin ice will be the first to disappear when the ice melts in summer. And if the thin ice melts as quickly as we presume, the Laptev Sea and with it a part of the North-East Passage will be free from ice comparatively early this summer“, explains the sea ice physicist.In the past the Laptev Sea was always covered with sea ice from October to the end of the following July and was navigable for a maximum of two summer months. In 2011 the ice had retracted so far by the third week of July that during the course of the summer 33 ships were able to navigate the Arctic waters of Russia for the first time. The North-East Passage is viewed by shipping companies to be a time and fuel saving alternative to the conventional Europe-Asia route. The connection from Rotterdam to Japanese Yokohama via the Nord-East Passage is some 3800 sea miles shorter than taking the Suez Canal and Indian Ocean route.
General information on the SMOS satellites may be found on the ESA website at http://www.esa.int/esaCP/SEMB4L4AD1G_Germany_0.html and on the sea ice thickness measurements of the satellite at http://www.esa.int/esaLP/SEM361BX9WG_index_0.html.
The Alfred Wegener Institute conducts research in the Arctic and Antarctic and in the high and mid-latitude oceans. The Institute coordinates German polar research and provides important infrastructure such as the research ice breaker Polarstern and research stations in the Arctic and Antarctic to the national and international scientific world. The Alfred Wegener Institute is one of the 18 research centres of the Helmholtz Association, the largest scientific organisation in Germany.
Ralf Röchert | idw
Receding glaciers in Bolivia leave communities at risk
20.10.2016 | European Geosciences Union
UM researchers study vast carbon residue of ocean life
19.10.2016 | University of Miami Rosenstiel School of Marine & Atmospheric Science
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
21.10.2016 | Health and Medicine
21.10.2016 | Information Technology
21.10.2016 | Materials Sciences