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Jens Jacob Iversen

Experimental Wind Characterization with the SuperCam Microphone under a Simulated martian Atmosphere

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Experimental Wind Characterization with the SuperCam Microphone under a Simulated martian Atmosphere. / Chide, Baptiste; Murdoch, Naomi; Bury, Yannick; Maurice, Sylvestre; Jacob, Xavier; Merrison, Jonathan P.; Iversen, Jens J.; Meslin, Pierre Yves; Bassas-Portús, Marti; Cadu, Alexandre; Sournac, Anthony; Dubois, Bruno; Lorenz, Ralph D.; Mimoun, David; Wiens, Roger C.

I: Icarus, Bind 354, 114060, 01.2021.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Chide, B, Murdoch, N, Bury, Y, Maurice, S, Jacob, X, Merrison, JP, Iversen, JJ, Meslin, PY, Bassas-Portús, M, Cadu, A, Sournac, A, Dubois, B, Lorenz, RD, Mimoun, D & Wiens, RC 2021, 'Experimental Wind Characterization with the SuperCam Microphone under a Simulated martian Atmosphere', Icarus, bind 354, 114060. https://doi.org/10.1016/j.icarus.2020.114060

APA

Chide, B., Murdoch, N., Bury, Y., Maurice, S., Jacob, X., Merrison, J. P., Iversen, J. J., Meslin, P. Y., Bassas-Portús, M., Cadu, A., Sournac, A., Dubois, B., Lorenz, R. D., Mimoun, D., & Wiens, R. C. (2021). Experimental Wind Characterization with the SuperCam Microphone under a Simulated martian Atmosphere. Icarus, 354, [114060]. https://doi.org/10.1016/j.icarus.2020.114060

CBE

Chide B, Murdoch N, Bury Y, Maurice S, Jacob X, Merrison JP, Iversen JJ, Meslin PY, Bassas-Portús M, Cadu A, Sournac A, Dubois B, Lorenz RD, Mimoun D, Wiens RC. 2021. Experimental Wind Characterization with the SuperCam Microphone under a Simulated martian Atmosphere. Icarus. 354:Article 114060. https://doi.org/10.1016/j.icarus.2020.114060

MLA

Vancouver

Author

Chide, Baptiste ; Murdoch, Naomi ; Bury, Yannick ; Maurice, Sylvestre ; Jacob, Xavier ; Merrison, Jonathan P. ; Iversen, Jens J. ; Meslin, Pierre Yves ; Bassas-Portús, Marti ; Cadu, Alexandre ; Sournac, Anthony ; Dubois, Bruno ; Lorenz, Ralph D. ; Mimoun, David ; Wiens, Roger C. / Experimental Wind Characterization with the SuperCam Microphone under a Simulated martian Atmosphere. I: Icarus. 2021 ; Bind 354.

Bibtex

@article{370fba051c494287aba4739c4f89f146,
title = "Experimental Wind Characterization with the SuperCam Microphone under a Simulated martian Atmosphere",
abstract = "Located on top of the mast of the Mars 2020 Perseverance rover, the SuperCam instrument suite includes a microphone to record audible sounds from 100Hz to 10kHz on the surface of Mars. It will support SuperCam's Laser-Induced Breakdown Spectroscopy investigation by recording laser-induced shock-waves but it will also record aeroacoustic noise generated by wind flowing past the microphone. This experimental study was conducted in the Aarhus planetary wind-tunnel under low CO2 pressure with wind generated at several velocities. It focused on understanding the wind-induced acoustic signal measured by microphones instrumented in a real scale model of the rover mast as a function of the wind speed and wind orientation. Acoustic spectra recorded under a wind flow show that the low-frequency range of the microphone signal is mainly influenced by the wind velocity. In contrast, the higher frequency range is seen to depend on the wind direction relative to the microphone. On the one hand, for the wind conditions tested inside the tunnel, it is shown that the Root Mean Square of the pressure, computed over the 100Hz to 500Hz frequency range, is proportional to the dynamic pressure. Therefore, the SuperCam microphone will be able to estimate the wind speed, considering an in situ cross-calibration with the Mars Environmental Dynamic Analyzer. On the other hand, for a given wind speed, it is observed that the root mean square of the pressure, computed over the 500Hz to 2000Hz frequency range, is at its minimum when the microphone is facing the wind whereas it is at its maximum when the microphone is pointing downwind. Hence, a full 360∘ rotation of the mast in azimuth in parallel with sound recording can be used to retrieve the wind direction. We demonstrate that the SuperCam Microphone has a priori the potential to determine both the speed and the direction of the wind on Mars, thus contributing to atmospheric science investigations.",
keywords = "Atmosphere, Mars 2020 Perseverance rover, Mars microphone, SuperCam instrument, Wind orientation, Wind speed",
author = "Baptiste Chide and Naomi Murdoch and Yannick Bury and Sylvestre Maurice and Xavier Jacob and Merrison, {Jonathan P.} and Iversen, {Jens J.} and Meslin, {Pierre Yves} and Marti Bassas-Port{\'u}s and Alexandre Cadu and Anthony Sournac and Bruno Dubois and Lorenz, {Ralph D.} and David Mimoun and Wiens, {Roger C.}",
note = "Funding Information: This work was funded by CNES and R{\'e}gion Occitanie as part of a PhD thesis. We gratefully acknowledge funding from Europlanet . Europlanet 2020 RI has received funding from the European Union{\textquoteright}s Horizon 2020 research and innovation programme under grant agreement No 654208 . Publisher Copyright: {\textcopyright} 2020 Elsevier Inc. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",
year = "2021",
month = jan,
doi = "10.1016/j.icarus.2020.114060",
language = "English",
volume = "354",
journal = "Icarus",
issn = "0019-1035",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Experimental Wind Characterization with the SuperCam Microphone under a Simulated martian Atmosphere

AU - Chide, Baptiste

AU - Murdoch, Naomi

AU - Bury, Yannick

AU - Maurice, Sylvestre

AU - Jacob, Xavier

AU - Merrison, Jonathan P.

AU - Iversen, Jens J.

AU - Meslin, Pierre Yves

AU - Bassas-Portús, Marti

AU - Cadu, Alexandre

AU - Sournac, Anthony

AU - Dubois, Bruno

AU - Lorenz, Ralph D.

AU - Mimoun, David

AU - Wiens, Roger C.

N1 - Funding Information: This work was funded by CNES and Région Occitanie as part of a PhD thesis. We gratefully acknowledge funding from Europlanet . Europlanet 2020 RI has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 654208 . Publisher Copyright: © 2020 Elsevier Inc. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2021/1

Y1 - 2021/1

N2 - Located on top of the mast of the Mars 2020 Perseverance rover, the SuperCam instrument suite includes a microphone to record audible sounds from 100Hz to 10kHz on the surface of Mars. It will support SuperCam's Laser-Induced Breakdown Spectroscopy investigation by recording laser-induced shock-waves but it will also record aeroacoustic noise generated by wind flowing past the microphone. This experimental study was conducted in the Aarhus planetary wind-tunnel under low CO2 pressure with wind generated at several velocities. It focused on understanding the wind-induced acoustic signal measured by microphones instrumented in a real scale model of the rover mast as a function of the wind speed and wind orientation. Acoustic spectra recorded under a wind flow show that the low-frequency range of the microphone signal is mainly influenced by the wind velocity. In contrast, the higher frequency range is seen to depend on the wind direction relative to the microphone. On the one hand, for the wind conditions tested inside the tunnel, it is shown that the Root Mean Square of the pressure, computed over the 100Hz to 500Hz frequency range, is proportional to the dynamic pressure. Therefore, the SuperCam microphone will be able to estimate the wind speed, considering an in situ cross-calibration with the Mars Environmental Dynamic Analyzer. On the other hand, for a given wind speed, it is observed that the root mean square of the pressure, computed over the 500Hz to 2000Hz frequency range, is at its minimum when the microphone is facing the wind whereas it is at its maximum when the microphone is pointing downwind. Hence, a full 360∘ rotation of the mast in azimuth in parallel with sound recording can be used to retrieve the wind direction. We demonstrate that the SuperCam Microphone has a priori the potential to determine both the speed and the direction of the wind on Mars, thus contributing to atmospheric science investigations.

AB - Located on top of the mast of the Mars 2020 Perseverance rover, the SuperCam instrument suite includes a microphone to record audible sounds from 100Hz to 10kHz on the surface of Mars. It will support SuperCam's Laser-Induced Breakdown Spectroscopy investigation by recording laser-induced shock-waves but it will also record aeroacoustic noise generated by wind flowing past the microphone. This experimental study was conducted in the Aarhus planetary wind-tunnel under low CO2 pressure with wind generated at several velocities. It focused on understanding the wind-induced acoustic signal measured by microphones instrumented in a real scale model of the rover mast as a function of the wind speed and wind orientation. Acoustic spectra recorded under a wind flow show that the low-frequency range of the microphone signal is mainly influenced by the wind velocity. In contrast, the higher frequency range is seen to depend on the wind direction relative to the microphone. On the one hand, for the wind conditions tested inside the tunnel, it is shown that the Root Mean Square of the pressure, computed over the 100Hz to 500Hz frequency range, is proportional to the dynamic pressure. Therefore, the SuperCam microphone will be able to estimate the wind speed, considering an in situ cross-calibration with the Mars Environmental Dynamic Analyzer. On the other hand, for a given wind speed, it is observed that the root mean square of the pressure, computed over the 500Hz to 2000Hz frequency range, is at its minimum when the microphone is facing the wind whereas it is at its maximum when the microphone is pointing downwind. Hence, a full 360∘ rotation of the mast in azimuth in parallel with sound recording can be used to retrieve the wind direction. We demonstrate that the SuperCam Microphone has a priori the potential to determine both the speed and the direction of the wind on Mars, thus contributing to atmospheric science investigations.

KW - Atmosphere

KW - Mars 2020 Perseverance rover

KW - Mars microphone

KW - SuperCam instrument

KW - Wind orientation

KW - Wind speed

UR - http://www.scopus.com/inward/record.url?scp=85089735187&partnerID=8YFLogxK

U2 - 10.1016/j.icarus.2020.114060

DO - 10.1016/j.icarus.2020.114060

M3 - Journal article

AN - SCOPUS:85089735187

VL - 354

JO - Icarus

JF - Icarus

SN - 0019-1035

M1 - 114060

ER -