globalchange  > 气候变化与战略
DOI: 10.1016/j.earscirev.2020.103350
论文题名:
Sublimation waves: Geomorphic markers of interactions between icy planetary surfaces and winds
作者: Bordiec M.; Carpy S.; Bourgeois O.; Herny C.; Massé M.; Perret L.; Claudin P.; Pochat S.; Douté S.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2020
卷: 211
语种: 英语
中文关键词: Bedforms ; Ice sheets ; Instability ; Planetary surfaces ; Scaling laws ; Sublimation ; Wind
英文关键词: bedform ; geomorphology ; ice sheet ; instability ; Mars ; planetary surface ; power law ; sublimation ; wind
英文摘要: Sublimation waves are periodic, linear and transverse bedforms that grow by sublimation of icy substrates under turbulent winds. They occur in different environments of the Earth and other planets, where the climate is favorable to sublimation. Their morphological and kinematic characteristics (wavelength, migration velocity, characteristic time of formation) depend on the environmental conditions in which they develop (atmosphere viscosity, wind speed, sublimation rate). To highlight these relations, we designed a theoretical model for their formation, based on models previously designed for dissolution bedforms. From a linear stability analysis of the model, we derived a dispersion relation and three scaling laws. These are validated by comparison with measurements available for two natural terrestrial examples (Blue Ice Areas of the Antarctic ice sheets and ice caves) and with new measurements in a laboratory experiment. They are applied to linear bedforms, of hitherto unknown origin, that we identified on the Martian North Polar Cap. We thus demonstrate that sublimation waves are convenient geomorphic markers to constrain surface compositions, atmospheric properties, climates, and winds on terrestrial ice sheets and other icy planetary surfaces. © 2020 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166011
Appears in Collections:气候变化与战略

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作者单位: Laboratoire de Planétologie et Géodynamique, Université de Nantes, Université d'Angers, CNRS, UMR, Nantes, 6112, France; Physikalisches Institut, Universität Bern, Bern, Switzerland; Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique, Centrale Nantes, CNRS, UMR 6598, Nantes, France; Laboratoire de Physique et Mécanique des Milieux Hétérogènes, ESPCI, Université Paris-Diderot, Université Pierre et Marie Curie, CNRS, UMR 7636, Paris, France; Université Grenoble Alpes, Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), CNRS, UMR 5274, Grenoble, France

Recommended Citation:
Bordiec M.,Carpy S.,Bourgeois O.,et al. Sublimation waves: Geomorphic markers of interactions between icy planetary surfaces and winds[J]. Earth Science Reviews,2020-01-01,211
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