Results 231 to 240 of about 1,982,933 (271)

Granular flow in the marginal ice zone

Philosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2005
The region of sea ice near the edge of the sea ice pack is known as the marginal ice zone (MIZ), and its dynamics are complicated by ocean wave interaction with the ice cover, strong gradients in the atmosphere and ocean and variations in sea ice rheology.
Daniel Feltham
exaly   +4 more sources

Modelling wave–ice interactions in three dimensions in the marginal ice zone

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2022
This study concerns wave–ice interactions in the marginal ice zone (MIZ). We compare idealized simulations using two recent three-dimensional formulations for wave–ice interactions for flexible ice floes, with selected parametrizations for the scattering of ocean surface waves due to individual ice floes.
Will Perrie, Michael H. Meylan, Bechara Toulany, Michael P. Casey   +3 more
openaire   +3 more sources

Aerosol size distributions in the marginal ice zone during the 1983 Marginal Ice Zone Experiment

Journal of Geophysical Research: Oceans, 1987
Measurements of the surface aerosol were performed by means of two laser optical particle counters during the East Greenland Sea Marginal Ice Zone Experiment. The number size distributions and total concentrations obtained for particles with radii between 0.09 μm and 12.5 μm were close to the global background level. Number size distributions decreased
S. H. Borrmann, K. L. Davidson, M. E. Miller   +2 more
openaire   +1 more source

Ice-Edge Eddies in the Fram Strait Marginal Ice Zone

Science, 1987
Five prominent ice-edge eddies in Fram Strait on the scale of 30 to 40 kilometers were observed over deep water within 77°N to 79°N and 5°W to 3°E. The use of remote sensing, a satellite-tracked buoy, and in situ oceanographic measurements showed the presence of eddies with orbital speeds of 30 to 40 centimeters per second and lifetimes of at least 20 ...
O M, Johannessen, J A, Johannessen, E, Svendsen, R A, Shuchman, W J, Campbell, E, Josberger   +5 more
openaire   +2 more sources

Marginal detachment zones: the fracture factories of ice shelves?

Journal of Geophysical Research: Earth Surface, 2022
Along the lateral margins of floating ice shelves in Greenland and Antarctica, ice flow past confining margins and pinning points is often accompanied by extensive rifting. Rifts in zones of marginal decoupling (“detachment zones’) typically propagate inward from the margins and result in many of Earth’s largest calving events.
Chris Miele, Timothy C. Bartholomaus, Ellyn M. Enderlin   +2 more
openaire   +1 more source

A model study of convergent dynamics in the marginal ice zone

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2022
With the increasing resolution of operational forecasting models, the marginal ice zone (MIZ), the area where waves and sea ice interact, can now be better represented. However, the proper mechanics of wave propagation and attenuation in ice, and especially their influence on sea ice dynamics, still remain poorly understood and constrained in models ...
Jean-Pierre Auclair, Dany Dumont, Jean-François Lemieux, Hal Ritchie   +3 more
openaire   +2 more sources

Sea ice melting in the marginal ice zone

Journal of Geophysical Research: Oceans, 1983
The heat and salt flux boundary conditions together with the freezing curve relationship are a necessary component of any ice‐sea water thermodynamic model. A neutral two‐layer oceanic planetary boundary layer model that incorporates these boundary conditions gives the following results: The interfacial salinity is within 10% of the far‐field salinity ...
openaire   +1 more source

Energy transport in the marginal ice zone

Journal of Geophysical Research: Oceans, 2001
A novel approach to modeling ocean wave scattering in the marginal ice zone that uses the coherent potential approximation to compute the energy transport velocity is reported. The necessary theory is developed by considering sea ice floes to be thin elastic beams governed by the Euler‐Bernoulli equation, with the open water surrounding each floe ...
Tony W. Dixon, Vernon A. Squire
openaire   +1 more source

Analysis of the Antarctic Marginal Ice Zone Based on Unsupervised Classification of Standalone Sea Ice Model Data [PDF]

Journal of Geophysical Research: Oceans
The Antarctic marginal ice zone, the regularly wave-affected outer band of the sea ice covered Southern Ocean, typically contains an unconsolidated ice cover comprised of smaller, thinner floes than the inner ice pack. Thus, it is a highly dynamic region
Alberto Alberello, Luke Bennetts, Fabien Montiel   +2 more
exaly   +2 more sources

The effect of ice pressure on marginal ice zone dynamics

IEEE Transactions on Geoscience and Remote Sensing, 1989
To evaluate the role of compressive ice pressure in marginal ice zone dynamics, a cavitating fluid model with periodic boundaries is developed and subjected to a fixed wind field and both cyclonic and anticyclonic wind vortices. In this model, ice interaction is approximated by assuming that sea ice has no resistance to divergence or shear, but has ...
G.M. Flato, W.D. Hibler
openaire   +1 more source