Nonlinear threshold behavior during the loss of Arctic sea ice [PDF]
In light of the rapid recent retreat of Arctic sea ice, a number of studies have discussed the possibility of a critical threshold (or "tipping point") beyond which the ice-albedo feedback causes the ice cover to melt away in an irreversible process. The focus has typically been centered on the annual minimum (September) ice cover, which is often seen ...
Eisenman, I., Wettlaufer, J. S.
arxiv +6 more sources
Sea ice trends in climate models only accurate in runs with biased global warming [PDF]
Observations indicate that the Arctic sea ice cover is rapidly retreating while the Antarctic sea ice cover is steadily expanding. State-of-the-art climate models, by contrast, typically simulate a moderate decrease in both the Arctic and Antarctic sea ice covers.
Eisenman, Ian, Rosenblum, Erica
arxiv +3 more sources
Faster Arctic sea ice retreat in CMIP5 than in CMIP3 due to volcanoes [PDF]
The downward trend in Arctic sea ice extent is one of the most dramatic signals of climate change during recent decades. Comprehensive climate models have struggled to reproduce this, typically simulating a slower rate of sea ice retreat than has been observed.
Eisenman, Ian, Rosenblum, Erica
arxiv +4 more sources
Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice
The ice arches that usually develop at the northern and southern ends of Nares Strait play an important role in modulating the export of Arctic Ocean multi-year sea ice.
G. Moore+4 more
semanticscholar +1 more source
Record low Antarctic sea ice coverage indicates a new sea ice state
In February 2023, Antarctic sea ice set a record minimum; there have now been three record-breaking low sea ice summers in seven years. Following the summer minimum, circumpolar Antarctic sea ice coverage remained exceptionally low during the autumn and ...
A. Purich, E. Doddridge
semanticscholar +1 more source
Regime shift in Arctic Ocean sea ice thickness
Manifestations of climate change are often shown as gradual changes in physical or biogeochemical properties^ 1 . Components of the climate system, however, can show stepwise shifts from one regime to another, as a nonlinear response of the system to a ...
H. Sumata+4 more
semanticscholar +1 more source
The Copernicus Global 1/12° Oceanic and Sea Ice GLORYS12 Reanalysis
GLORYS12 is a global eddy-resolving physical ocean and sea ice reanalysis at 1/12° horizontal resolution covering the 1993-present altimetry period, designed and implemented in the framework of the Copernicus Marine Environment Monitoring Service (CMEMS).
Lellouche Jean-Michel+16 more
semanticscholar +1 more source
Seasonal Arctic sea ice forecasting with probabilistic deep learning
Anthropogenic warming has led to an unprecedented year-round reduction in Arctic sea ice extent. This has far-reaching consequences for indigenous and local communities, polar ecosystems, and global climate, motivating the need for accurate seasonal sea ...
Tom R. Andersson+16 more
semanticscholar +1 more source
Retrieval and parameterisation of sea-ice bulk density from airborne multi-sensor measurements [PDF]
Knowledge of sea-ice thickness and volume depends on freeboard observations from satellite altimeters and in turn on information of snow mass and sea-ice density required for the freeboard-to-thickness conversion.
A. Jutila+7 more
doaj +1 more source
Satellite-based sea ice thickness changes in the Laptev Sea from 2002 to 2017: comparison to mooring observations [PDF]
The gridded sea ice thickness (SIT) climate data record (CDR) produced by the European Space Agency (ESA) Sea Ice Climate Change Initiative Phase 2 (CCI-2) is the longest available, Arctic-wide SIT record covering the period from 2002 to 2017.
H. J. Belter+6 more
doaj +1 more source