Wind erosion on Mars and other small terrestrial planets

Autor: Kruss, Maximilian, Musiolik, Grzegorz, Demirci, Tunahan, Wurm, Gerhard, Teiser, Jens
Rok vydání: 2019
Předmět:
Zdroj: Icarus 337 (2020), 113438
Druh dokumentu: Working Paper
DOI: 10.1016/j.icarus.2019.113438
Popis: We carried out wind tunnel experiments on parabolic flights with 100 $\mu$m Mojave Mars simulant sand. The experiments result in shear stress thresholds and erosion rates for varying g-levels at 600 Pa pressure. Our data confirm former results on JSC Mars 1A simulant where the threshold shear stress is lower under Martian gravity than extrapolated from earlier ground-based studies which fits observations of Martian sand activity. The data are consistent with a model by Shao and Lu (2000) and can also be applied to other small terrestrial (exo)-planets with low pressure atmospheres.
Databáze: arXiv