Bulletin of the American Physical Society
76th Annual Meeting of the Division of Fluid Dynamics
Sunday–Tuesday, November 19–21, 2023; Washington, DC
Session T32: Porous Media Flows: Mass and Heat Transfer II
4:25 PM–6:09 PM,
Monday, November 20, 2023
Room: 158AB
Chair: Simon Toedtli, Johns Hopkins University
Abstract: T32.00002 : Pattern Formation of Refrozen Melt Structures in Snowpack*
4:38 PM–4:51 PM
Presenter:
Nathan D Jones
(California Institute of Technology)
Authors:
Nathan D Jones
(California Institute of Technology)
Adrian Moure
(California Institute of Technology)
Xiaojing Fu
(California Institute of Technology)
In this work, we use the thermodynamic nonequilibrium meltwater infiltration model developed by Moure et al. (2023) to investigate the formation of refrozen melt structures in an initially homogeneous snowpack. As the temperatures of the ice and water phases are tracked independently, the refreezing kinetics of infiltrated meltwater are governed by local thermodynamic conditions of each phase and thus do not rely on the assumption of a constant rate of freezing. We are able to recover the formation of ice lenses and ice pipes across a broad range of snowpack parameters. We identify the key thermal conditions that lead to the formation of these structures and how they continue to evolve in time under changing climatic conditions.
*Suppored by NSF Award Number 2243631
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