Spiky ice and penitente tilting

Vista sencilla de ítem
dc.contributor.authorGuilleminot, P.
dc.contributor.authorOlea, R.
dc.date.accessioned2019-11-08T12:56:06Z
dc.date.available2019-11-08T12:56:06Z
dc.date.issued2018-06
dc.descriptionIndexación: Scopus.es
dc.description.abstractUnder certain conditions, at high altitude, the surface of snow develops spike-like structures known as penitentes. This is a rather counterintuitive phenomenon, which is a consequence of surface sublimation at a given point as a result of the incidence of light scattered by the surrounding region. Following the existing literature, we model the time evolution of the phenomenon described above as a 1D diffusion equation with a non-local source term, as it represents the light coming from all the line of sight defined for a point of the curve. For small initial perturbations in the surface, the system undergoes a thermodynamic instability which triggers the formation of spikes. For sunlight coming in at a given angle, numerical simulations account for a feature observed in the real system: penitentes get tilted in the direction of the sunlight. © Published under licence by IOP Publishing Ltd.es
dc.description.abstractWe thank R. Rojas and R. Soto for interesting discussions. P.G. was financially supported by Facultad de Ciencias Exactas, UNAB, to attend SOCHIFI 2016 Meeting.
dc.description.urihttps://iopscience.iop.org/article/10.1088/1742-6596/1043/1/012007
dc.identifier.citationJournal of Physics: Conference Series, 1043(1), art. no. 012007es
dc.identifier.issn1742-6588
dc.identifier.otherDOI: 10.1088/1742-6596/1043/1/012007
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/10612
dc.language.isoenes
dc.publisherInstitute of Physics Publishinges
dc.subject1D diffusionses
dc.subjectCounter-intuitive phenomenones
dc.subjectIncidence of lightes
dc.subjectInitial perturbationes
dc.subjectNonlocal sourcees
dc.subjectSurrounding regionses
dc.subjectThermodynamic instabilityes
dc.subjectTime evolutionses
dc.titleSpiky ice and penitente tiltinges
dc.typeArtículoes
Archivos
Bloque original
Mostrando 1 - 1 de 1
Miniatura
Nombre:
Guilleminot_Spiky_Ice.pdf
Tamaño:
547 KB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO COMPLETO EN INGLES
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar
Colecciones
FCE - Artículos de Revista