The dynamic atmospheric and aeolian environment of Jezero crater, Mars
Ikusi/ Ireki
Data
2022-05Egilea
Newman, Claire E.
Lemmon, Mark T.
Vicente Retortillo, Álvaro
Apestigue, Victor
Martínez, Germán
Toledo, Daniel
Sullivan, Rob
Herkenhoff, Kenneth
de la Torre Juárez, Manuel
Richardson, Mark I.
Stott, Alexander E.
Murdoch, Naomi
Wolff, Michael J.
Arruego, Ignacio
Sebastián, Eduardo
Navarro, Sara
Gómez Elvira, Javier
Tamppari, Leslie
Viúdez Moreiras, Daniel
Harri, Ari Matti
Genzer, Maria
Hieta, Maria
Lorenz, Ralph D.
Conrad, Pan
Gómez, Felipe
McConnochie, Timothy
Mimoun, David
Tate, Christian
Bertrand, Tanguy
Bell, James
Maki, Justin N.
Rodríguez Manfredi, José Antonio
Wiens, Roger C.
Chide, Baptiste
Maurice, Sylvestre
Zorzano, María Paz
Mora Sotomayor, Luis
Baker, Mariah M.
Banfield, Don
Plá García, Jorge
Beyssac, Olivier
Brown, Adrian
Clark, Ben
Lepinette, Alain
Montmessin, Franck
Fischer, Erik
Patel, Priyaben
Del Río Gaztelurrutia, María Teresa
Fouchet, Thierry
Francis, Raymond
Guzewich, Scott
Science Advances 8(21) : (2022) // Article ID eabn3783
Laburpena
Despite the importance of sand and dust to Mars geomorphology, weather, and exploration, the processes that move sand and that raise dust to maintain Mars' ubiquitous dust haze and to produce dust storms have not been well quantified in situ, with missions lacking either the necessary sensors or a sufficiently active aeolian environment. Perseverance rover's novel environmental sensors and Jezero crater's dusty environment remedy this. In Perseverance's first 216 sols, four convective vortices raised dust locally, while, on average, four passed the rover daily, over 25% of which were significantly dusty ("dust devils"). More rarely, dust lifting by nonvortex wind gusts was produced by daytime convection cells advected over the crater by strong regional daytime upslope winds, which also control aeolian surface features. One such event covered 10 times more area than the largest dust devil, suggesting that dust devils and wind gusts could raise equal amounts of dust under nonstorm conditions.
Collections
Bestelakorik adierazi ezean, itemaren baimena horrela deskribatzen da:© 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. his is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.https://creativecommons.org/licenses/by-nc/4.0/
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