Results 51 to 60 of about 574,262 (277)

Adaptively constraining radar attenuation and temperature across the Thwaites Glacier catchment using bed echoes

Journal of Glaciology, 2016
Englacial temperature is a major control on ice rheology and flow. However, it is difficult to measure at the glacier to ice-sheet scale. As a result, ice-sheet models must make assumptions about englacial temperature and rheology, which affect sea level
DUSTIN M. SCHROEDER, HELENE SEROUSSI, WINNIE CHU, DUNCAN A. YOUNG   +3 more
doaj   +1 more source

A General High‐Throughput Mucus Microrheology Platform for Quantitative and Scalable Mucus Phenotyping [PDF]

Advanced science
High‐throughput Differential Dynamic Microscopy measures frequency‐resolved mechanical fingerprints from 3 to 10 μL$\umu{\rm L}$ mucus samples using only a few minutes of operator attention per sample. This automated analysis enables scalable mucus phenotyping for translational research by distinguishing mechanical heterogeneity among donors, disease ...
Ling F, Şahin A, Naranjo B, Aime S, Roth D, Pukaluk A, Tepho N, Augustin R, Zampa B, Vendrame A, Klassen M, Emken E, Kiechle M, Stoleriu M, Mertsch P, Olmer R, Tesfaigzi Y, Lieleg O, Nawroth J.   +18 more
europepmc   +2 more sources

Pressure drop of flowing ice slurries in industrial heat exchangers [PDF]

, 2009
Experiments were conducted to determine the characteristics of ice flows through industrial heat exchangers (a Tetra Plex (R) C6-SR and a Tetra Spiraflo (R) MTC70/W-3).
Quarini, G.L., Evans, T.S., Quarini, GL, Evans, T. S., Quarini, Giuseppe Leonardo, Shire, GSF, Shire, G.S.F., Shire, G. S. F., Evans, Tim S   +8 more
core   +1 more source

Sediment behavior controls equilibrium width of subglacial channels

Journal of Glaciology, 2017
Flow-frictional resistance at the base of glaciers and ice sheets is strongly linked to subglacial water pressure. Understanding the physical mechanisms that govern meltwater fluxes in subglacial channels is hence critical for constraining variations in ...
ANDERS DAMSGAARD, JENNY SUCKALE, JAN A. PIOTROWSKI, MORGANE HOUSSAIS, MATTHEW R. SIEGFRIED, HELEN A. FRICKER   +5 more
doaj   +1 more source

Wave–ice interactions in the neXtSIM sea-ice model [PDF]

The Cryosphere, 2017
In this paper we describe a waves-in-ice model (WIM), which calculates ice breakage and the wave radiation stress (WRS). This WIM is then coupled to the new sea-ice model neXtSIM, which is based on the elasto-brittle (EB) rheology.
T. D. Williams, P. Rampal, S. Bouillon
doaj   +1 more source

Effect of an orientation-dependent non-linear grain fluidity on bulk directional enhancement factors

Journal of Glaciology, 2021
Bulk directional enhancement factors are determined for axisymmetric (girdle and single-maximum) orientation fabrics using a transversely isotropic grain rheology with an orientation-dependent non-linear grain fluidity.
Nicholas M. Rathmann, Christine S. Hvidberg, Aslak Grinsted, David A. Lilien, Dorthe Dahl-Jensen   +4 more
doaj   +1 more source

Rheology of Discrete Failure Regimes of Anisotropic Sea Ice [PDF]

Journal of Physical Oceanography, 2012
ABSTRACT A rheological model of sea ice is presented that incorporates the orientational distribution of ice thickness in leads embedded in isotropic floe ice. Sea ice internal stress is determined by coulombic, ridging and tensile failure at orientations where corresponding failure criteria are satisfied at minimum stresses. Because sea
Wilchinsky, Alexander V., Feltham, Daniel L.   +1 more
openaire   +1 more source

Firn densification in two dimensions: modeling the collapse of snow caves and enhanced densification in ice-stream shear margins

Journal of Glaciology
Accurate modeling of firn densification is necessary for ice core interpretation and assessing the mass balance of glaciers and ice sheets. In this paper, we revisit the nonlinear-viscous firn rheology introduced by Gagliardini and Meyssonnier (1997 ...
Jon Arrizabalaga-Iriarte, Lide Lejonagoitia-Garmendia, Christine S. Hvidberg, Aslak Grinsted, Nicholas M. Rathmann   +4 more
doaj   +1 more source

On the physical basis for the creep of ice: the high temperature regime

Journal of Glaciology, 2020
This work quantifies the increased temperature sensitivity of the constitutive behavior of ice with proximity to the melting point in terms of dislocation mechanics.
D.M. Cole
doaj   +1 more source

A Maxwell elasto-brittle rheology for sea ice modelling [PDF]

The Cryosphere, 2016
Abstract. A new rheological model is developed that builds on an elasto-brittle (EB) framework used for sea ice and rock mechanics, with the intent of representing both the small elastic deformations associated with fracturing processes and the larger deformations occurring along the faults/leads once the material is highly damaged and fragmented.
Dansereau, Véronique, Weiss, Jérôme, Saramito, Pierre, Lattes, Philippe   +3 more
openaire   +5 more sources