Results 1 to 10 of about 20,810 (165)
Sea-ice dynamics on triangular grids [PDF]
Journal of Computational Physics, 2021 We present a stable discretization of sea-ice dynamics on triangular grids that can straightforwardly be coupled to an ocean model on a triangular grid with Arakawa C-type staggering. The approach is based on a nonconforming finite element framework, namely the Crouzeix-Raviart finite element.
Carolin Mehlmann
exaly +3 more sources
Sea Ice Dynamics Drive Benthic Microbial Communities in McMurdo Sound, Antarctica [PDF]
Frontiers in Microbiology, 2021 Climate change is driving dramatic variability in sea ice dynamics, a key driver in polar marine ecosystems. Projected changes in Antarctica suggest that regional warming will force dramatic shifts in sea ice thickness and persistence, altering sea ice ...
Ashleigh A. Currie +8 more
doaj +2 more sources
Sea ice dynamics across the Mid-Pleistocene transition in the Bering Sea [PDF]
Nature Communications, 2018 Modelling studies propose sea ice to be one of the underlying mechanisms for the Mid-Pleistocene transition. Here, the authors show Mid-Pleistocene subarctic North Pacific sea ice dynamics based on biomarkers and biogenic opal accumulation rates ...
H. Detlef +8 more
doaj +2 more sources
The dynamics of unstable waves in sea ice [PDF]
Scientific Reports, 2023 AbstractWave and sea ice properties in the Arctic and Southern Oceans are linked by feedback mechanisms, therefore the understanding of wave propagation in these regions is essential to model this key component of the Earth climate system. The most striking effect of sea ice is the attenuation of waves at a rate proportional to their frequency.
Alberello, Alberto +2 more
openaire +4 more sources
Rigorous Analysis and Dynamics of Hibler’s Sea Ice Model [PDF]
Journal of Nonlinear Science, 2022 AbstractThis article develops for the first time a rigorous analysis of Hibler’s model of sea ice dynamics. Identifying Hibler’s ice stress as a quasilinear second-order operator and regarding Hibler’s model as a quasilinear evolution equation, it is shown that a regularized version of Hibler’s coupled sea ice model, i.e., the model coupling velocity ...
Felix Brandt 0004 +3 more
openaire +5 more sources
The bimodality of the East Siberian fast ice extent: mechanisms and changes
Annals of Glaciology, 2023 Using operational sea-ice maps, we provide first insight into the seasonal evolution of fast ice in the East Siberian Sea for the period between 1999 and 2021.
Valeria Selyuzhenok +4 more
doaj +1 more source
Winter Ice Dynamics in a Semi-Closed Ice-Covered Sea: Numerical Simulations and Satellite Data
Fluids, 2022 The White Sea is a small shallow sea covered by ice in winter. There are very few numerical models of this sea. For the ice-free sea, much data has been collected, but for winter only a small amount (satellite data only).
Ilya Chernov +3 more
doaj +1 more source
Effects of including the adjoint sea ice rheology on estimating Arctic Ocean–sea ice state [PDF]
Ocean Science, 2023 The adjoint assimilation method has been applied to coupled ocean and sea ice models for sensitivity studies and Arctic state estimations. However, the accuracy of the adjoint model is degraded by simplifications of the adjoint of the sea ice model ...
G. Lyu +5 more
doaj +1 more source
Patterns of wintertime Arctic sea-ice leads and their relation to winds and ocean currents [PDF]
The Cryosphere, 2023 We use a novel sea-ice lead climatology for the winters of 2002/03 to 2020/21 based on satellite observations with 1 km2 spatial resolution to identify predominant patterns in Arctic wintertime sea-ice leads.
S. Willmes, G. Heinemann, F. Schnaase
doaj +1 more source
Higher-order statistical moments to analyse Arctic sea-ice drift patterns
Annals of Glaciology, 2020 Geophysical systems are often assumed to follow Gaussian probability density functions; however, deviations from Gaussian behaviour can shed light on the underlying dynamics.
Satwant Kaur +3 more
doaj +1 more source