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New minimum ice area record

Nansen Center’s European Ice Information Service "www.arctic-roos.org" shows a new ice area minimum record of approx. 3 million square kilometers on the 9th September 2012, 0.6 million square kilometers less than the previous record in 2007 (see Figure 1). From the Nansen Center's "Hovercraft" expedition, led by Professor Yngve Kristoffersen, it is reported that the air temperature on 9th September was -2 degrees at 84 degrees north, 3 degrees east - that is, the melt season is over.

  • Posted by admin
  • Published: 2012-09-12

New record minimum ice extent in the Arctic and it is still melting rapidly

A record minimum sea ice area in the Arctic is observed now in August 2012 and the ice is still melting rapidly. The ice area is recorded to be 3,26 million square kilometres on 26th August (see figure below), while the previous record sea ice area minimum was 3.64 million square kilometres, reported in 2007. Also a record minimum ice extent (i.e. the ice edge position, see lower figure) is observed at 4.64 million square kilometres, which is significantly less than previous minimum (4,73 million km2) reported on 19th September 2007. The observations are based on the information published at the Nansen Center’s European ice information service, published here at Arctic-ROOS..

  • Posted by admin
  • Published: 2012-08-27

Arctic sea ice shrinks to record low, by some estimates

The Arctic sea ice area is now more than 300.000 km2 less than the earlier minimum in 2007.

  • Posted by admin
  • Published: 2012-08-24

Arctic ROOS Annual Meeting 2-3 November 2011

Hosted by University of Cambridge, Department of Applied Mathematics and Theoretical Physics (UCAM DAMTP) (e-mail: "P. Wadhams" <pw11@cam.ac.uk>)

  • Posted by webadmin
  • Published: 2011-10-24

ERS satellites has observed the Earth during 20 years

The European ERS-1 satellite was launched in 1991 and the ERS-2 satellite followed in 1995. Both satellites have provided Earth observation data that has been essential for the scientific research performed at the Nansen Center during the last 20 years.

  • Posted by webadmin
  • Published: 2011-10-03

Publication on the Interaction Between the Warm Subsurface Atlantic Water in the Sermilik Fjord and Helheim Glacier in Southeast Greenland

The Nansen Center scientists Ola M. Johannessen, Alexander Korablev, Victoria Miles, Martin Miles and Knut E. Solberg have published the paper "Interaction Between the Warm Subsurface Atlantic Water in the Sermilik Fjord and Helheim Glacier in Southeast Greenland" in Surveys in Geophysics.

  • Posted by webadmin
  • Published: 2011-08-11

Special issue on the Earth’s Cryosphere and Sea Level Change

The International Space Science Institute (ISSI) workshop on the Earth’s Cryosphere and Sea Level Change was hosted in Bern in March 2011. The main results from the workshop are now published on-line in the special issue of “Surveys in Geophysics”.

  • Posted by webadmin
  • Published: 2011-07-04

Award for international space cooperation

The Norwegian Space Centre has presented an award to Prof. Ola M. Johannessen for his scientific contribution to increase international awareness and understanding of space activities – in particular for Earth observation.

  • Posted by webadmin
  • Published: 2011-05-16

Summer school at Svalbard on impact of climate change

The Norwegian Scientific Academy for Polar Research invites in cooperation with Nansen Environmental and Remote Sensing Center, Nansen Scientific Society and UNIS to the summer school “Impact of climate change on resources, maritime transport and geopolitics in the Arctic and the Svalbard area" from 21. to 28. August at Svalbard.

  • Posted by webadmin
  • Published: 2011-05-16

Publication on the vulnerabilities of marine and sea ice–based ecosystems

The paper “Critical vulnerabilities of marine and sea ice–based ecosystems in the high Arctic” has been published in Regional Environ Change.

  • Posted by webadmin
  • Published: 2010-12-20

Arctic ROOS Annual meeting 3 - 4 November in Sopot

The Annual meeting of Arctic ROOS is hosted by Institute of Oceanology, Polish Academy of Sciences, in Sopot 3 - 4 November. The agenda for the meeting is attached.

  • Posted by webadmin
  • Published: 2010-10-28

Chinese Academy of Sciences Appointment

Professor Ola M. Johannessen, executive chairman of the Board of the Nansen Environmental and Remote Sensing Center in Bergen, Norway was appointed ”Visiting Professor for Senior International Scientists of the Chinese Academy of Sciences (CAS)” for 2010.

  • Posted by webadmin
  • Published: 2010-10-28

Minimum sea ice extent in the Arctic now

In the middle of September every year the minimum sea ice extent appears in the Arctic Ocean – so also this year. Both the Northeast- and Northwest- passages are ice free and open for ship traffic. According to the ArcticROOS analysis of satellite microwave data the minimum sea ice area occurred on September 8th 2010 with an ice area of 4.12 mill. km2 in the Arctic Ocean. The sea ice area was then 16% larger that the previous minimum observed in 2007.

  • Posted by webadmin
  • Published: 2010-09-17

Errors in the satellite data on September 13th. 2010 - are now corrected

  • Posted by webadmin
  • Published: 2010-09-15

Advanced underwater ocean monitoring system deployed in the Fram Strait

An ocean monitoring system for acoustic tomography and navigation is under deployment, which will provide acoustic travel times for model validation, assimilation and temperature inversions along six transects across the Fram Strait between Svalbard and Greenland.

  • Posted by webadmin
  • Published: 2010-08-19
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