Distribution and time-variation of spire streaks at Pavonis Mons on Mars - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Planetary and Space Science Année : 2011

Distribution and time-variation of spire streaks at Pavonis Mons on Mars

Résumé

We documented the distribution and the time-variation of the specific dark wind streaks at Pavonis Mons. We focused on the streaks we named Spire Streaks, which are overlapping spindle shaped dark streaks at the upper boundary of the coalesced dark streaks on Tharsis volcanoes. We investigated both visible and infrared images obtained by Viking orbiter camera, Mars Orbiter Camera (MOC), THEMIS, CTX and HiRISE of the spire streaks at Pavonis Mons. We also used topographic data obtained by Mars Orbiter Laser Altimeter (MOLA) to see the relationship between the topography and the distribution of the spire streaks. The spire streaks at Pavonis Mons provide us high-resolution information about the direction of the nighttime slope wind, and could be indirect clues for the time-variation of the nighttime environment. We conclude that the spire streaks are erosional features. However, some features of the spire streaks reported in this paper are outside the scope of previous modeling for erosional process, and we need a new category of model for the formation. © 2011 Elsevier Ltd. All rights reserved.

Domaines

Planétologie

Dates et versions

hal-01119138 , version 1 (20-02-2015)

Identifiants

Citer

T. Toyota, K. Kurita, Aymeric Spiga. Distribution and time-variation of spire streaks at Pavonis Mons on Mars. Planetary and Space Science, 2011, 59 (8), pp.672-682. ⟨10.1016/j.pss.2011.01.015⟩. ⟨hal-01119138⟩
118 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More