Zobrazeno 1 - 10
of 447
pro vyhledávání: '"Hewitt, Ian"'
Sedimentary basins beneath many Antarctic ice streams host substantial volumes of groundwater, which can be exchanged with a "shallow" subglacial hydrological system of till and channelised water. This exchange contributes substantially to basal wate
Externí odkaz:
http://arxiv.org/abs/2409.11848
Autor:
Woods, Tilly, Hewitt, Ian J.
The weathering crust is a layer of porous ice that can form at the surface of an ice sheet. It grows and decays in response changing weather and climate conditions, affecting the albedo, the melt rate, and the transport of meltwater across the surfac
Externí odkaz:
http://arxiv.org/abs/2405.02111
Autor:
Voigtländer, Anne, Houssais, Morgane, Bacik, Karol A., Bourg, Ian C., Burton, Justin C., Daniels, Karen E., Datta, Sujit S., Del Gado, Emanuela, Deshpande, Nakul S., Devauchelle, Olivier, Ferdowsi, Behrooz, Glade, Rachel, Goehring, Lucas, Hewitt, Ian J., Jerolmack, Douglas, Juanes, Ruben, Kudrolli, Arshad, Lai, Ching-Yao, Li, Wei, Masteller, Claire, Nissanka, Kavinda, Rubin, Allan M., Stone, Howard A., Suckale, Jenny, Vriend, Nathalie M., Wettlaufer, John S., Yang, Judy Q.
Inspired by presentations by the authors during a workshop organized at the Princeton Center for Theoretical Science (PCTS) in January 2022, we present a perspective on some of the outstanding questions related to the "physics of the ground beneath o
Externí odkaz:
http://arxiv.org/abs/2308.00162
Autor:
Offord, Wilfred, Coughlan, Michael, Hewitt, Ian J., Harrington, Heather A., Grindstaff, Gillian
During the summer melt period, ponds form on the surface of Arctic sea ice as it melts, with important consequences for ice evolution and marine ecology. Due to the ice-albedo feedback, these melt ponds experience uneven heat absorption, and exhibit
Externí odkaz:
http://arxiv.org/abs/2212.07961
Publikováno v:
J. Fluid Mech. 955, A26 (2023)
We study the bendocapillary instability of a liquid droplet that part fills a flexible walled channel. Inspired by experiments in which a `weaving' pattern emerges as droplets of liquid are condensed slowly into deformable microchannels, we develop a
Externí odkaz:
http://arxiv.org/abs/2201.01103
Viscous contact problems describe the time evolution of fluid flows in contact with a surface from which they can detach and reattach. These problems are of particular importance in glaciology, where they arise in the study of grounding lines and sub
Externí odkaz:
http://arxiv.org/abs/2111.05593
Stokes variational inequalities arise in the formulation of glaciological problems involving contact. We consider the problem of a two-dimensional marine ice sheet with a grounding line, although the analysis presented here is extendable to other con
Externí odkaz:
http://arxiv.org/abs/2108.00046
Publikováno v:
Phys. Rev. Fluids 6 114003 (2021)
Passive droplet transport mechanisms, in which continuous external energy input is not required for motion, have received significant attention in recent years. Experimental studies of such mechanisms often ignore, or use careful treatments to minimi
Externí odkaz:
http://arxiv.org/abs/2104.10115
Tidal heating is expected to impart significant, non-spherically-symmetric structure to Jupiter's volcanic moon Io. A signature of spatially variable tidal heating is generally sought in observations of surface heat fluxes or volcanic activity, an ex
Externí odkaz:
http://arxiv.org/abs/2008.09022