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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.<\/jats:p>","DOI":"10.1029\/2020gl091651","type":"journal-article","created":{"date-parts":[[2021,1,15]],"date-time":"2021-01-15T10:06:58Z","timestamp":1610705218000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["Periodic Bedrock Ridges at the ExoMars 2022 Landing Site: Evidence for a Changing Wind Regime"],"prefix":"10.1029","volume":"48","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3196-6620","authenticated-orcid":false,"given":"S.","family":"Silvestro","sequence":"first","affiliation":[{"name":"Istituto Nazionale di Astrofisica (INAF) Osservatorio Astronomico di Capodimonte  Napoli Italy"},{"name":"Carl Sagan Center SETI Institute  Mountain View CA USA"}]},{"given":"A.","family":"Pacifici","sequence":"additional","affiliation":[{"name":"International Research School of Planetary Sciences Universit\u00e0 Gabriele D'Annunzio  Pescara Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0491-0274","authenticated-orcid":false,"given":"F.","family":"Salese","sequence":"additional","affiliation":[{"name":"International Research School of Planetary Sciences Universit\u00e0 Gabriele D'Annunzio  Pescara Italy"},{"name":"Centro de Astrobiolog\u00eda CSIC\u2010INTA  Madrid Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3583-2267","authenticated-orcid":false,"given":"D.A.","family":"Vaz","sequence":"additional","affiliation":[{"name":"Centre for Earth and Space Research of the University of Coimbra Observat\u00f3rio Geof\u00edsico e Astron\u00f3mico da Universidade de Coimbra  Coimbra Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6698-7651","authenticated-orcid":false,"given":"A.","family":"Neesemann","sequence":"additional","affiliation":[{"name":"Freie Universit\u00e4t  Berlin Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5905-5426","authenticated-orcid":false,"given":"D.","family":"Tirsch","sequence":"additional","affiliation":[{"name":"German Aerospace Center (DLR) Institute of Planetary Research  Berlin Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8803-1957","authenticated-orcid":false,"given":"C.I.","family":"Popa","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Astrofisica (INAF) Osservatorio Astronomico di Capodimonte  Napoli Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3144-1277","authenticated-orcid":false,"given":"M.","family":"Pajola","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Astrofisica (INAF) Osservatorio Astronomico di Padova  Padova Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5911-3163","authenticated-orcid":false,"given":"G.","family":"Franzese","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Astrofisica (INAF) Osservatorio Astronomico di Capodimonte  Napoli Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1182-8252","authenticated-orcid":false,"given":"G.","family":"Mongelluzzo","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Astrofisica (INAF) Osservatorio Astronomico di Capodimonte  Napoli Italy"},{"name":"Department of Industrial Engineering Universit\u00e0 di Napoli \u201cFederico II\u201d  Napoli Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1556-2474","authenticated-orcid":false,"given":"A.C.","family":"Ruggeri","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Astrofisica (INAF) Osservatorio Astronomico di Capodimonte  Napoli Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2225-2834","authenticated-orcid":false,"given":"F.","family":"Cozzolino","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Astrofisica (INAF) Osservatorio Astronomico di Capodimonte  Napoli Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6004-437X","authenticated-orcid":false,"given":"C.","family":"Porto","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Astrofisica (INAF) Osservatorio Astronomico di Capodimonte  Napoli Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9962-1648","authenticated-orcid":false,"given":"F.","family":"Esposito","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Astrofisica (INAF) Osservatorio Astronomico di Capodimonte  Napoli Italy"}]}],"member":"13","published-online":{"date-parts":[[2021,2,22]]},"reference":[{"issue":"7","key":"e_1_2_7_2_1","first-page":"1","article-title":"Opportunity Mars Rover mission: Overview and selected results from Purgatory ripple to traverses to Endeavour crater","volume":"116","author":"Arvidson R. 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