dc.contributor.author | Hernández Bernal, Jorge | |
dc.contributor.author | Sánchez Lavega, Agustín María | |
dc.contributor.author | Del Río Gaztelurrutia, María Teresa | |
dc.contributor.author | Ravanis, Eleni | |
dc.contributor.author | Cardesín-Moinelo, Alejandro | |
dc.contributor.author | Connour, K. | |
dc.contributor.author | Tirsch, Daniela | |
dc.contributor.author | Ordoñez Etxeberria, Iñaki | |
dc.contributor.author | Gondet, Brigitte | |
dc.contributor.author | Wood, Simon | |
dc.contributor.author | Titov, Dimitri | |
dc.contributor.author | Schneider, Nick | |
dc.contributor.author | Hueso Alonso, Ricardo | |
dc.contributor.author | Jaumann, R. | |
dc.contributor.author | Hauber, E. | |
dc.date.accessioned | 2023-12-28T12:06:34Z | |
dc.date.available | 2023-12-28T12:06:34Z | |
dc.date.issued | 2021-03-20 | |
dc.identifier.citation | Journal of Geophysical Research: Planets 126(3) : (2021) // Article ID e2020JE006517 | es_ES |
dc.identifier.issn | 10.1029/2020JE006517 | |
dc.identifier.issn | 2169-9097 | |
dc.identifier.issn | 2169-9100 | |
dc.identifier.uri | http://hdl.handle.net/10810/63692 | |
dc.description.abstract | We report a previously unnoticed annually repeating phenomenon consisting of the daily formation of an extremely elongated cloud extending as far as 1,800 km westward from Arsia Mons. It takes place in the solar longitude (Ls) range of ∼220°–320°, around the Southern solstice. We study this Arsia Mons Elongated Cloud (AMEC) using images from different orbiters, including ESA Mars Express, NASA MAVEN, Viking 2, MRO, and ISRO Mars Orbiter Mission (MOM). We study the AMEC in detail in Martian year (MY) 34 in terms of local time and Ls and find that it exhibits a very rapid daily cycle: the cloud growth starts before sunrise on the western slope of the volcano, followed by a westward expansion that lasts 2.5 h with a velocity of around 170 m/s in the mesosphere (∼45 km over the areoid). The cloud formation then ceases, detaches from its formation point, and continues moving westward until it evaporates before the afternoon, when most sun-synchronous orbiters make observations. Moreover, we comparatively study observations from different years (i.e., MYs 29–34) in search of interannual variations and find that in MY33 the cloud exhibits lower activity, while in MY34 the beginning of its formation was delayed compared with other years, most likely due to the Global Dust Storm. This phenomenon takes place in a season known for the general lack of clouds on Mars. In this paper we focus on observations, and a theoretical interpretation will be the subject of a separate paper. | es_ES |
dc.description.sponsorship | This work has been supported by the Spanish project AYA2015-65041-P and PID2019-109467GB-I00 (MINECO/FEDER, UE) and Grupos Gobierno Vasco IT-1366-19. JHB was supported by ESA Contract No. 4000118461/16/ES/JD, Scientific Support for Mars Express Visual Monitoring Camera. The Aula EspaZio Gela is supported by a grant from the Diputación Foral de Bizkaia (BFA). We acknowledge support from the Faculty of the European Space Astronomy Center (ESAC). Special thanks are due to the Mars Express Science Ground Segment and Flight Control Team at ESAC and ESOC. The contributions by K.C and N.M.S were supported by NASA through the MAVEN project. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | AGU | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/AYA2015-65041-P | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/PID2019-109467GB-I00 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | Mars | es_ES |
dc.subject | orographic clouds | es_ES |
dc.title | An Extremely Elongated Cloud Over Arsia Mons Volcano on Mars: I. Life Cycle | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2020. American Geophysical Union. All Rights Reserved. | es_ES |
dc.relation.publisherversion | https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020JE006517 | es_ES |
dc.departamentoes | Física aplicada I | es_ES |
dc.departamentoeu | Fisika aplikatua I | es_ES |