Development of a wind retrieval method for low-speed low-pressure flows for ExoMars

Soria-Salinas, Álvaro; Zorzano, María Paz; Mantas-Nakhai, Roberto; Martín‐Torres, Javier

doi:10.1016/j.applthermaleng.2020.115752

Cited by 3 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the lander instruments will provide a better assessment on the present‐day aeolian environment at the surface (Martín‐Torres et al., 2020; Mongelluzzo et al., 2019; Rodionov et al., 2017; Soria‐Salinas et al., 2020). The presence of PBRs represents a roughness element that should be taken into account when deriving key parameters for the characterization of the present‐day aeolian environment such as aerodynamic roughness length and wind threshold velocity (Hébrard et al., 2012; Kok et al., 2012; Sullivan et al., 2000; Zimbelman et al., 2015).…”

Section: Discussionmentioning

confidence: 99%

“…In addition, being eroded into the bright clay-rich unit (Carter et al, 2016;Quantin-Nataf et al, 2021), PBRs provide an easily accessible window into the first 1-2 m of this astrobiologically promising rock unit. Furthermore, the lander instruments will provide a better assessment on the present-day aeolian environment at the surface (Martín-Torres et al, 2020;Mongelluzzo et al, 2019;Rodionov et al, 2017;Soria-Salinas et al, 2020). The presence of PBRs represents a roughness element that should be taken into account when deriving key parameters for the characterization of the present-day aeolian environment such as SILVESTRO ET AL.…”

Section: Implication For the Exomars Missionmentioning

confidence: 99%

See 1 more Smart Citation

Periodic Bedrock Ridges at the ExoMars 2022 Landing Site: Evidence for a Changing Wind Regime

Silvestro

Pacifici

Salese

et al. 2021

Geophysical Research Letters

View full text Add to dashboard Cite

Wind‐formed features are abundant in Oxia Planum (Mars), the landing site of the 2022 ExoMars mission, which shows geological evidence for a past wet environment. Studies of aeolian bedforms at the landing site were focused on assessing the risk for rover trafficability, however their potential in recording climatic fluctuations has not been explored. Here we show that the landing site experienced multiple climatic changes in the Amazonian, which are recorded by an intriguing set of ridges that we interpret as Periodic Bedrock Ridges (PBRs). Clues for a PBR origin result from ridge regularity, defect terminations, and the presence of preserved megaripples detaching from the PBRs. PBR orientation differs from superimposed transverse aeolian ridges pointing toward a major change in wind regime. Our results provide constrains on PBR formation mechanisms and offer indications on paleo winds that will be crucial for understanding the landing site geology.

show abstract