气候变化领域集成服务门户(CCPortal): Sublimation waves: Geomorphic markers of interactions between icy planetary surfaces and winds

CCPortal

DOI	10.1016/j.earscirev.2020.103350
	Sublimation waves: Geomorphic markers of interactions between icy planetary surfaces and winds
	Bordiec M.; Carpy S.; Bourgeois O.; Herny C.; Massé M.; Perret L.; Claudin P.; Pochat S.; Douté S.
发表日期	2020
ISSN	0012-8532
卷号	211
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.
英文关键词	Bedforms; Ice sheets; Instability; Planetary surfaces; Scaling laws; Sublimation; Wind
语种	英语
scopus关键词	bedform; geomorphology; ice sheet; instability; Mars; planetary surface; power law; sublimation; wind
来源期刊	EARTH-SCIENCE REVIEWS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/209461
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
推荐引用方式 GB/T 7714	Bordiec M.,Carpy S.,Bourgeois O.,et al. Sublimation waves: Geomorphic markers of interactions between icy planetary surfaces and winds[J],2020,211.
APA	Bordiec M..,Carpy S..,Bourgeois O..,Herny C..,Massé M..,...&Douté S..(2020).Sublimation waves: Geomorphic markers of interactions between icy planetary surfaces and winds.EARTH-SCIENCE REVIEWS,211.
MLA	Bordiec M.,et al."Sublimation waves: Geomorphic markers of interactions between icy planetary surfaces and winds".EARTH-SCIENCE REVIEWS 211(2020).