What drove the dramatic retreat of arctic sea ice during summer 2007

  title={What drove the dramatic retreat of arctic sea ice during summer 2007},
  author={Jinlun Zhang and Ronald W. Lindsay and Michael Steele and Axel Schweiger},
  journal={Geophysical Research Letters},
[1] A model study has been conducted of the unprecedented retreat of arctic sea ice in the summer of 2007. It is found that preconditioning, anomalous winds, and ice-albedo feedback are mainly responsible for the retreat. Arctic sea ice in 2007 was preconditioned to radical changes after years of shrinking and thinning in a warm climate. During summer 2007 atmospheric changes strengthened the transpolar drift of sea ice, causing more ice to move out of the Pacific sector and the central Arctic… 

Figures from this paper

Arctic Sea Ice Retreat in 2007 Follows Thinning Trend
The minimum of Arctic sea ice extent in the summer of 2007 was unprecedented in the historical record. A coupled ice–ocean model is used to determine the state of the ice and ocean over the past 29
The impact of an intense summer cyclone on 2012 Arctic sea ice retreat
[1] This model study examines the impact of an intense early August cyclone on the 2012 record low Arctic sea ice extent. The cyclone passed when Arctic sea ice was thin and the simulated Arctic ice
Warm winds from the Pacific caused extensive Arctic sea-ice melt in summer 2007
During summer 2007 the Arctic sea-ice shrank to the lowest extent ever observed. The role of the atmospheric energy transport in this extreme melt event is explored using the state-of-the-art
Loss of sea ice in the Arctic.
The observed reduction in Arctic sea ice is a consequence of both thermodynamic and dynamic processes, including such factors as preconditioning of the ice cover, overall warming trends, changes in cloud coverage, shifts in atmospheric circulation patterns, and the ice-albedo feedback.
Observed Concentration Budgets of Arctic and Antarctic Sea Ice
AbstractIn recent decades, Antarctic sea ice has expanded slightly while Arctic sea ice has contracted dramatically. The anthropogenic contribution to these changes cannot be fully assessed unless
Patterns of Sea Ice Retreat in the Transition to a Seasonally Ice-Free Arctic
AbstractThe patterns of sea ice retreat in the Arctic Ocean are investigated using two global climate models (GCMs) that have profound differences in their large-scale mean winter atmospheric
Mechanisms of summertime upper Arctic Ocean warming and the effect on sea ice melt
[1] In this study, we use a numerical sea-ice-ocean model to examine what causes summertime upper ocean warming and sea ice melt during the 21st century in the Arctic Ocean. Our first question is,
Geographic muting of changes in the Arctic sea ice cover
The seasonal cycle in Arctic sea ice extent is asymmetric. Its amplitude has grown in recent decades as the ice has retreated more rapidly in summer than in winter. These seasonal disparities have
Seasonal changes in sea ice conditions along the Northeast Passage in 2007 and 2012
Remote sensing data from passive microwave and satellite-based altimeters, associated with the data measuredunderway, were used to characterize seasonal and spatial changes in sea ice conditions
Bottom melting of Arctic Sea Ice in the Nansen Basin due to Atlantic Water influence
The hydrographic situation for a region north of Svalbard is investigated using observations from the Norwegian Young Sea Ice Cruise (N-ICE2015). Observations from January to June 2015 are compared


The thinning of Arctic sea ice, 1988-2003 : Have we passed a tipping point?
Recent observations of summer Arctic sea ice over the satellite era show that record or near-record lows for the ice extent occurred in the years 2002–05. To determine the physical processes
Recent Changes in Arctic Sea Ice: The Interplay between Ice Dynamics and Thermodynamics
Abstract It is well established that periods of high North Atlantic oscillation (NAO) index are characterized by a weakening of the surface high pressure and surface anticyclone in the Beaufort Sea
Abrupt decline in the Arctic winter sea ice cover
[1] Although the Arctic perennial ice cover has been on a rapid decline, the winter ice cover had been unexpectedly stable. We report and provide insights into a remarkable turn of events, with the
The contribution of cloud and radiation anomalies to the 2007 Arctic sea ice extent minimum
[1] Reduced cloudiness and enhanced downwelling radiation are associated with the unprecedented 2007 Arctic sea ice loss. Over the Western Arctic Ocean, total summertime cloud cover estimated from
Arctic Ocean sea ice volume: What explains its recent depletion?
[1] Various observations and model results point to an arctic sea ice cover that was extraordinarily thin in the 1990s. This thin ice cover was caused by a strengthened cyclonic circulation of wind
Increasing solar heating of the Arctic Ocean and adjacent seas, 1979-2005: Attribution and role in the ice-albedo feedback
[1] Over the past few decades the Arctic sea ice cover has decreased in areal extent. This has altered the solar radiation forcing on the Arctic atmosphere-ice-ocean system by decreasing the surface
Rapid reduction of Arctic perennial sea ice
[1] The extent of Arctic perennial sea ice, the year-round ice cover, was significantly reduced between March 2005 and March 2007 by 1.08 x 10 6 km 2 , a 23% loss from 4.69 × 10 6 km 2 to 3.61 × 10 6
Accelerated decline in the Arctic sea ice cover
[1] Satellite data reveal unusually low Arctic sea ice coverage during the summer of 2007, caused in part by anomalously high temperatures and southerly winds. The extent and area of the ice cover
A younger, thinner Arctic ice cover: Increased potential for rapid, extensive sea-ice loss
[1] Satellite-derived estimates of sea-ice age and thickness are combined to produce a proxy ice thickness record for 1982 to the present. These data show that in addition to the well-documented loss
Near zero replenishment of the Arctic multiyear sea ice cover at the end of 2005 summer
  • R. Kwok
  • Environmental Science, Geology
  • 2007
[1] The remarkably low Arctic multiyear (MY) sea ice coverage following the summer of 2005 is placed in the context of its variability over the past seven years (2000–2006). Annual cycles of MY ice