Results 21 to 30 of about 4,479,560 (350)

Proposing a new conceptual model for the reconstruction of ice dynamics in the SW sector of the Scandinavian Ice Sheet (SIS) based on the reinterpretation of published data and new evidence from optically stimulated luminescence (OSL) dating

open access: yesE&G Quaternary Science Journal, 2020
. We propose a new concept of the Weichselian ice dynamics in the south-western sector of the Baltic Sea depression. The review of existing geochronological data from Germany, Denmark and southernmost Sweden in combination with new optically stimulated ...
C. Lüthgens, Jacob Hardt, M. Böse
semanticscholar   +1 more source

First evidence of industrial fly-ash in an Antarctic ice core

open access: yesScientific Reports, 2023
Spheroidal carbonaceous particles (SCPs) are a component of fly-ash, the particulate by-product of industrial high temperature combustion of fuel-oil and coal-series fuels.
E. R. Thomas   +4 more
doaj   +1 more source

Detecting seasonal ice dynamics in satellite images

open access: yesThe Cryosphere, 2020
. Fully understanding how glaciers respond to environmental change will require new methods to help us identify the onset of ice acceleration events and observe how dynamic signals propagate within glaciers. In particular, observations of ice dynamics on
C. Greene, A. Gardner, L. Andrews
semanticscholar   +1 more source

Evidence for dynamic kagome ice [PDF]

open access: yesNature Communications, 2018
AbstractThe search for two-dimensional quantum spin liquids, exotic magnetic states remaining disordered down to zero temperature, has been a great challenge in frustrated magnetism over the last few decades. Recently, evidence for fractionalized excitations, called spinons, emerging from these states has been observed in kagome and triangular ...
E. Lhotel   +7 more
openaire   +7 more sources

Dynamic Ic and Dynamic Programming [PDF]

open access: yesSSRN Electronic Journal, 2019
This paper develops a dynamic programming method when the one-stage deviation principle in the sense of mechanism design literature doesn’t hold. The commonly used dynamic programming method is valid only if the one-stage deviation principle in the sense of mechanism design literature is satisfied; it doesn't hold in every model, and the one-stage ...
openaire   +2 more sources

Marginal ice zone dynamics

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2022
For the best part of my entire career, I have focused on the marginal ice zone, abbreviated to MIZ by most sea ice scientists. Defined perfunctorily by the National Snow & Ice Data Center as the part of the seasonal ice zone where waves, swells and other open ocean processes affect the sea ice, the MIZ habitually extends from the ice edge some 100 ...
openaire   +2 more sources

Magnetic monopole dynamics in spin ice [PDF]

open access: yesJournal of Physics: Condensed Matter, 2011
One of the most remarkable examples of emergent quasi-particles, is that of the "fractionalization" of magnetic dipoles in the low energy configurations of materials known as "spin ice", into free and unconfined magnetic monopoles interacting via Coulomb's 1/r law [Castelnovo et. al., Nature, 451, 42-45 (2008)].
Jaubert, L D C, Holdsworth, P C W
openaire   +4 more sources

The Interplay of Recent Vegetation and Sea Ice Dynamics—Results From a Regional Earth System Model Over the Arctic

open access: yesGeophysical Research Letters, 2020
Recent accelerated warming over the Arctic coincides with sea ice reduction and shifting patterns of land cover. We use a state‐of‐the‐art regional Earth system model, RCAO‐GUESS, which comprises a dynamic vegetation model (LPJ‐GUESS), a regional ...
Wenxin Zhang   +7 more
semanticscholar   +1 more source

Englacial Pore Water Localizes Shear in Temperate Ice Stream Margins [PDF]

open access: yes, 2019
The margins of fast‐moving ice streams are characterized by steep velocity gradients. Some of these gradients cannot be explained by a temperature‐dependent viscosity alone.
Haseloff, Marianne   +2 more
core   +2 more sources

Brief communication: Reduced bandwidth improves the depth limit of the radar coherence method for detecting ice crystal fabric asymmetry [PDF]

open access: yesThe Cryosphere
Ice crystal orientation fabric strongly affects the viscous deformation of glacier ice. A popular technique to investigate ice fabric is radar polarimetry, often analysed using the coherence method.
O. Zeising   +4 more
doaj   +1 more source

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