Perennial pack ice in the southern Beaufort Sea was not as it appeared in the summer of 2009

  title={Perennial pack ice in the southern Beaufort Sea was not as it appeared in the summer of 2009},
  author={David G. Barber and Ryan James Galley and Matthew G. Asplin and Roger de Abreu and Kerri Warner and Monika Pućko and Mukesh Gupta and Simon J. Prinsenberg and St{\'e}phane Julien},
  journal={Geophysical Research Letters},
[1] In September 2009 we observed a much different sea icescape in the Southern Beaufort Sea than anticipated, based on remotely sensed products. Radarsat derived ice charts predicted 7 to 9 tenths multi-year (MY) or thick first-year (FY) sea ice throughout most of the Southern Beaufort Sea in the deep water of the Canada Basin. In situ observations found heavily decayed, very small remnant MY and FY floes interspersed with new ice between floes, in melt ponds, thaw holes and growing over… Expand

Figures from this paper

Deterioration of perennial sea ice in the Beaufort Gyre from 2003 to 2012 and its impact on the oceanic freshwater cycle
Time series of ice draft from 2003 to 2012 from moored sonar data are used to investigate variability and describe the reduction of the perennial sea ice cover in the Beaufort Gyre (BG), culminatingExpand
Role of ice dynamics in anomalous ice conditions in the Beaufort Sea during 2006 and 2007
[1] A new record minimum in summer sea ice extent was set in 2007 and an unusual polynya formed in the Beaufort Sea ice cover during the summer of 2006. Using a combination of visual observationsExpand
Fracture of summer perennial sea ice by ocean swell as a result of Arctic storms
[1] The Arctic summer minimum sea ice extent has experienced a decreasing trend since 1979, with an extreme minimum extent of 4.27 × 106 km2 in September 2007, and a similar minimum in 2011. LargeExpand
Implications of fractured Arctic perennial ice cover on thermodynamic and dynamic sea ice processes
Decline of the Arctic summer minimum sea ice extent is characterized by large expanses of open water in the Siberian, Laptev, Chukchi, and Beaufort Seas, and introduces large fetch distances in theExpand
Record low sea-ice concentration in the central Arctic during summer 2010
The Arctic sea-ice extent has shown a declining trend over the past 30 years. Ice coverage reached historic minima in 2007 and again in 2012. This trend has recently been assessed to be unique overExpand
On the characteristics of sea ice divergence/convergence in the Southern Beaufort Sea
Abstract. An understanding of spatial gradients in sea ice motion, or deformation, is essential to understanding of ocean-sea-ice-atmosphere interactions and realistic representations of sea ice inExpand
Long period swells break up the Canadian Beaufort Sea pack ice in September 2009
During the summer of 2009, ice observations were made using Electromagnetic, Video and Laser sensors mounted on an helicopter that was stationed on the CCGS Amundsen while she traversed the CanadianExpand
Recent changes in sea ice area flux through the Beaufort Sea during the summer
Over the annual cycle, sea ice is sequestered from the Canadian Basin and transported through the Beaufort Sea toward the Chukchi Sea. In recent years, the Beaufort Sea has experienced considerableExpand
On the classification of melt season first-year and multi-year sea ice in the Beaufort Sea using Radarsat-2 data
Interpreting satellite microwave sea ice data during the melt season is difficult. Warm temperatures allow for a greater presence of water in the liquid phase at the surface and within the ice,Expand
Sea ice mass balance observations from the North Pole Environmental Observatory
In recent years the periphery of the Arctic sea ice cover has undergone significant changes, with a reduction in summer ice extent, a thinning of the ice, and a shift from multiyear to first yearExpand


Sunlight, water, and ice: Extreme Arctic sea ice melt during the summer of 2007
[1] The summer extent of the Arctic sea ice cover, widely recognized as an indicator of climate change, has been declining for the past few decades reaching a record minimum in September 2007. TheExpand
Thinning of the Arctic sea‐ice cover
Comparison of sea-ice draft data acquired on submarine cruises between 1993 and 1997 with similar data acquired between 1958 and 1976 indicates that the mean ice draft at the end of the melt seasonExpand
On the decrease of Arctic sea ice volume
The decrease of Arctic sea ice volume is investigated using a dynamic-thermodynamic sea ice model. The model was forced with NCEP/NCAR reanalysis winds and surface air temperatures in a hindcastExpand
Operational Satellite Sensing of Arctic First-Year Sea Ice Melt
RÉSUMÉ Le Service canadien des glaces fait appel à des techniques fiables et efficaces pour évaluer et faire le suivi de la décroissance des glaces à partir de capteurs satellitairesExpand
Sea ice strength during the melt
  • 2002