Physical processes causing the formation of penitentes
نویسندگان
چکیده
منابع مشابه
Controlled irradiative formation of penitentes.
Spike-shaped structures are produced by light-driven ablation in very different contexts. Penitentes 1-4 m high are common on Andean glaciers, where their formation changes glacier dynamics and hydrology. Laser ablation can produce cones 10-100 microm high with a variety of proposed applications in materials science. We report the first laboratory generation of centimeter-scale snow and ice pen...
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15 صفحه اولFormation of Structure in Snowfields: Penitentes, Suncups, and Dirt Cones
Penitentes and suncups are structures formed as snow melts, typically high in the mountains. When the snow is dirty, dirt cones and other structures can form instead. Building on previous field observations and experiments, this work presents a theory of ablation morphologies, and the role of surface dirt in determining the structures formed. The glaciological literature indicates that sunlight...
متن کاملar X iv : 1 51 1 . 01 72 5 v 1 [ co nd - m at . s of t ] 5 N ov 2 01 5 Physical processes causing the formation of penitentes
P. Claudin, H. Jarry, G. Vignolesm, M. Plapp❄, and B. Andreotti Laboratoire de Physique et Mécanique des Milieux Hétérogènes, PMMH UMR 7636 ESPCI – CNRS – Univ. Paris Diderot – Univ. P. M. Curie, 10 rue Vauquelin, 75005, Paris, France. Laboratoire des Composites ThermoStructuraux, LCTS UMR 5801 CNRS – UB1 – CEA – Safran, 3 allée La Boetie, 33600 Pessac, France. and ❄Condensed Matter Physics, Ec...
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Gravitational collapse is one of the most fruitful subjects in gravitational physics. It is well known that singularity formation is inevitable in complete gravitational collapse. It was conjectured that such a singularity should be hidden by horizons if it is formed from generic initial data with physically reasonable matter fields. Many possible counterexamples to this conjecture have been pr...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2015
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.92.033015