Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/29841
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Silvestro, Simone | en_US |
dc.contributor.author | Chojnacki, M. | en_US |
dc.contributor.author | Vaz, D. A. | en_US |
dc.contributor.author | Cardinale, M. | en_US |
dc.contributor.author | Yizhaq, H. | en_US |
dc.contributor.author | ESPOSITO, Francesca | en_US |
dc.date.accessioned | 2021-01-19T11:23:52Z | - |
dc.date.available | 2021-01-19T11:23:52Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 2169-9097 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/29841 | - |
dc.description.abstract | Aeolian megaripples, with 5‐ to 50‐m spacing, are abundant on the surface of Mars. These features were repeatedly targeted by high‐resolution orbital images, but they have never been observed to move. Thus, aeolian megaripples (especially the bright‐toned ones often referred as Transverse Aeolian Ridges—TARs) have been interpreted as relict features ofa past climate. In this report, we show evidence for the migration of bright‐toned megaripples spaced 1 to 35 m (5 mon average) in two equatorial areas on Mars indicating that megaripples and small TARs can be active today. The moving megaripples display sand fluxes that are 2 orders of magnitudes lower than the surrounding dunes on average and, unlike similar bedforms on Earth, can migrate obliquely and longitudinally. In addition, the active megaripples in the two study areas of Syrtis Major and Mawrth Vallis show very similar flux distributions, echoing the similarities between dune crest fluxes in the two study areas and suggesting the existence of a relationship between dune and megaripple fluxes that can be explored elsewhere. Active megaripples, together with high‐sand flux dunes, represent a key indicator of strong winds at the surface of Mars. A past climate with a denser atmosphere is not necessary to explain their accumulation and migration. | en_US |
dc.language.iso | eng | en_US |
dc.title | Megaripple Migration on Mars | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1029/2020JE006446 | en_US |
dc.identifier.scopus | 2-s2.0-85089840915 | en_US |
dc.identifier.isi | 000566216900006 | en_US |
dc.identifier.url | https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020JE006446 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 125 | en_US |
dc.relation.issue | 8 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 6 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | GEO/02 - GEOLOGIA STRATIGRAFICA E SEDIMENTOLOGICA | en_US |
dc.relation.journal | JOURNAL OF GEOPHYSICAL RESEARCH (PLANETS) | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2020JGRE..12506446S | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering | en_US |
dc.description.apc | sì | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.orcid | 0000-0002-3196-6620 | - |
crisitem.author.orcid | 0000-0001-9962-1648 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Silvestro et al. - 2020 - Megaripple Migration on Mars.pdf | Pdf editoriale | 17.45 MB | Adobe PDF | View/Open |
29841-Silvestro et al._P01.pdf | Miur | 9.65 MB | Adobe PDF | |
29841-Silvestro et al._P02.pdf | Miur | 7.92 MB | Adobe PDF |
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