{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T23:20:48Z","timestamp":1777418448028,"version":"3.51.4"},"reference-count":86,"publisher":"American Geophysical Union (AGU)","issue":"8","license":[{"start":{"date-parts":[[2020,7,29]],"date-time":"2020-07-29T00:00:00Z","timestamp":1595980800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["CEECIND\/02981\/2017"],"award-info":[{"award-number":["CEECIND\/02981\/2017"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000104","name":"National Aeronautics and Space Administration","doi-asserted-by":"publisher","award":["NNH14ZDA001N"],"award-info":[{"award-number":["NNH14ZDA001N"]}],"id":[{"id":"10.13039\/100000104","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["agupubs.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["JGR Planets"],"published-print":{"date-parts":[[2020,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Aeolian megaripples, with 5\u2010 to 50\u2010m spacing, are abundant on the surface of Mars. These features were repeatedly targeted by high\u2010resolution orbital images, but they have never been observed to move. Thus, aeolian megaripples (especially the bright\u2010toned ones often referred as Transverse Aeolian Ridges\u2014TARs) have been interpreted as relict features of a past climate. In this report, we show evidence for the migration of bright\u2010toned megaripples spaced 1 to 35\u00a0m (5\u00a0m on 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\u2010sand 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.<\/jats:p>","DOI":"10.1029\/2020je006446","type":"journal-article","created":{"date-parts":[[2020,6,27]],"date-time":"2020-06-27T14:00:35Z","timestamp":1593266435000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":61,"title":["Megaripple Migration on Mars"],"prefix":"10.1029","volume":"125","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3196-6620","authenticated-orcid":false,"given":"S.","family":"Silvestro","sequence":"first","affiliation":[{"name":"INAF Osservatorio Astronomico di Capodimonte  Napoli Italy"},{"name":"SETI Institute  Mountain View CA USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8497-8994","authenticated-orcid":false,"given":"M.","family":"Chojnacki","sequence":"additional","affiliation":[{"name":"Lunar and Planetary Laboratory University of Arizona  Tucson AZ USA"},{"name":"Planetary Science Institute  Tucson AZ USA"}]},{"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\/0000-0002-3769-2771","authenticated-orcid":false,"given":"M.","family":"Cardinale","sequence":"additional","affiliation":[{"name":"DiSPUTer D'Annunzio University  Chieti Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7573-3303","authenticated-orcid":false,"given":"H.","family":"Yizhaq","sequence":"additional","affiliation":[{"name":"Department of Solar Energy and Environmental Physics, BIDR Ben\u2010Gurion University of the Negev  Beersheba Israel"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9962-1648","authenticated-orcid":false,"given":"F.","family":"Esposito","sequence":"additional","affiliation":[{"name":"INAF Osservatorio Astronomico di Capodimonte  Napoli Italy"}]}],"member":"13","published-online":{"date-parts":[[2020,7,29]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/ncomms6096"},{"key":"e_1_2_8_3_1","volume-title":"The physics of blown sand and desert dunes","author":"Bagnold R. A.","year":"1954"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/2017JE005513"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.geomorph.2008.03.011"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1029\/2018JE005747"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2018.05.003"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2011.02.014"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.3390\/rs11080912"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.geomorph.2010.04.007"},{"key":"e_1_2_8_11_1","first-page":"2090","volume-title":"Lunar and Planetary Science XXXIV","author":"Bourke M. C.","year":"2003"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aeolia.2013.02.004"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature11022"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature11022"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1130\/G32373.1"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1029\/2007GL031445"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aeolia.2015.01.007"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1002\/2017JE005263"},{"key":"e_1_2_8_19_1","first-page":"1","article-title":"The intermittency of wind\u2010driven sand transport","volume":"46","author":"Camola F.","year":"2019","journal-title":"Geophysical Research Letters"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2015.10.022"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.epsl.2016.10.022"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1002\/2017JE005460"},{"key":"e_1_2_8_23_1","doi-asserted-by":"publisher","DOI":"10.1130\/G45793.1"},{"key":"e_1_2_8_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2014.04.044"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1029\/2019EA000874"},{"key":"e_1_2_8_26_1","doi-asserted-by":"publisher","DOI":"10.1029\/2019GL085178"},{"key":"e_1_2_8_27_1","first-page":"1","volume-title":"49th Lunar and Planetary Science Conference","author":"Dickinson J. L.","year":"2018"},{"key":"e_1_2_8_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aeolia.2016.10.001"},{"key":"e_1_2_8_29_1","doi-asserted-by":"publisher","DOI":"10.1029\/1999JE001152"},{"key":"e_1_2_8_30_1","doi-asserted-by":"publisher","DOI":"10.1002\/2017JE005324"},{"key":"e_1_2_8_31_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.geomorph.2014.11.023"},{"key":"e_1_2_8_32_1","doi-asserted-by":"publisher","DOI":"10.1029\/2004JE002309"},{"key":"e_1_2_8_33_1","doi-asserted-by":"publisher","DOI":"10.1029\/2002JE002015"},{"issue":"2018","key":"e_1_2_8_34_1","first-page":"840","article-title":"Megaripples at Wau\u2010an\u2010Namus, Libya: A new analog for similar features on Mars","volume":"319","author":"Foroutan M.","year":"2018","journal-title":"Icarus"},{"key":"e_1_2_8_35_1","doi-asserted-by":"publisher","DOI":"10.1002\/2014JE004633"},{"key":"e_1_2_8_36_1","doi-asserted-by":"publisher","DOI":"10.1002\/esp.3331"},{"issue":"12","key":"e_1_2_8_37_1","first-page":"2583","article-title":"The morphology of transverse aeolian ridges on Mars","volume":"119","author":"Geissler P. E.","year":"2017","journal-title":"Aeolian Research"},{"key":"e_1_2_8_38_1","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9780511573071"},{"key":"e_1_2_8_39_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2016.08.010"},{"key":"e_1_2_8_40_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2016.10.015"},{"key":"e_1_2_8_41_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.geomorph.2011.04.028"},{"key":"e_1_2_8_42_1","doi-asserted-by":"publisher","DOI":"10.1038\/ncomms9796"},{"key":"e_1_2_8_43_1","doi-asserted-by":"publisher","DOI":"10.1002\/esp.2259"},{"key":"e_1_2_8_44_1","doi-asserted-by":"publisher","DOI":"10.1029\/2007JE003000"},{"key":"e_1_2_8_45_1","doi-asserted-by":"publisher","DOI":"10.1088\/0034-4885\/75\/10\/106901"},{"key":"e_1_2_8_46_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41567-018-0106-z"},{"key":"e_1_2_8_47_1","doi-asserted-by":"publisher","DOI":"10.4324\/9780203413128"},{"key":"e_1_2_8_48_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.aaf3206"},{"key":"e_1_2_8_49_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.aaf3206"},{"key":"e_1_2_8_50_1","doi-asserted-by":"publisher","DOI":"10.1029\/2018GL079029"},{"key":"e_1_2_8_51_1","doi-asserted-by":"publisher","DOI":"10.1109\/TGRS.2006.888937"},{"key":"e_1_2_8_52_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aeolia.2011.01.004"},{"key":"e_1_2_8_53_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.geomorph.2011.06.003"},{"key":"e_1_2_8_54_1","doi-asserted-by":"publisher","DOI":"10.1029\/2006JE002808"},{"key":"e_1_2_8_55_1","doi-asserted-by":"publisher","DOI":"10.1029\/2000JE001455"},{"key":"e_1_2_8_56_1","doi-asserted-by":"publisher","DOI":"10.1029\/2005JE002605"},{"key":"e_1_2_8_57_1","doi-asserted-by":"publisher","DOI":"10.1130\/G25382A.1"},{"key":"e_1_2_8_58_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2017.05.011"},{"key":"e_1_2_8_59_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-3091.2012.01330.x"},{"key":"e_1_2_8_60_1","doi-asserted-by":"publisher","DOI":"10.1029\/2004JE002251"},{"key":"e_1_2_8_61_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.epsl.2016.09.054"},{"key":"e_1_2_8_62_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aeolia.2017.09.001"},{"issue":"1","key":"e_1_2_8_63_1","first-page":"23","article-title":"Eolian features produced by the December 1977 windstorm, southern San Joaquin Valley, California","volume":"54","author":"Sakamoto\u2010Arnold C. M.","year":"1981","journal-title":"Journal of Geology"},{"key":"e_1_2_8_64_1","doi-asserted-by":"publisher","DOI":"10.1086\/626936"},{"key":"e_1_2_8_65_1","doi-asserted-by":"publisher","DOI":"10.1002\/esp.3316"},{"key":"e_1_2_8_66_1","doi-asserted-by":"publisher","DOI":"10.1029\/2010GL044743"},{"key":"e_1_2_8_67_1","doi-asserted-by":"publisher","DOI":"10.1029\/2011GL048955"},{"key":"e_1_2_8_68_1","doi-asserted-by":"publisher","DOI":"10.1002\/2016GL070014"},{"key":"e_1_2_8_69_1","doi-asserted-by":"publisher","DOI":"10.1002\/2016GL070014"},{"key":"e_1_2_8_70_1","doi-asserted-by":"publisher","DOI":"10.1029\/2018JE005701"},{"key":"e_1_2_8_71_1","doi-asserted-by":"publisher","DOI":"10.1029\/2008JE003101"},{"key":"e_1_2_8_72_1","doi-asserted-by":"publisher","DOI":"10.1002\/2017JE005275"},{"key":"e_1_2_8_73_1","volume-title":"X International Conference on Aeolian Research","author":"Sullivan R.","year":"2018"},{"key":"e_1_2_8_74_1","doi-asserted-by":"publisher","DOI":"10.1002\/2017JE005465"},{"key":"e_1_2_8_75_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.geomorph.2015.08.021"},{"key":"e_1_2_8_76_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2013.08.007"},{"key":"e_1_2_8_77_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aeolia.2016.08.003"},{"key":"e_1_2_8_78_1","doi-asserted-by":"publisher","DOI":"10.1029\/2008GL035921"},{"key":"e_1_2_8_79_1","doi-asserted-by":"publisher","DOI":"10.1029\/2018GL078972"},{"key":"e_1_2_8_80_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.epsl.2019.01.025"},{"key":"e_1_2_8_81_1","first-page":"28","article-title":"Longevity of aeolian megaripples, Earth Planet","volume":"422","author":"Yizhaq H.","year":"2015","journal-title":"Science Letters"},{"key":"e_1_2_8_82_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aeolia.2012.05.001"},{"key":"e_1_2_8_83_1","doi-asserted-by":"publisher","DOI":"10.1130\/G32995.1"},{"key":"e_1_2_8_84_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.geomorph.2009.05.012"},{"key":"e_1_2_8_85_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2019.05.017"},{"key":"e_1_2_8_86_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aeolia.2013.04.004"},{"key":"e_1_2_8_87_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2009.03.033"}],"container-title":["Journal of Geophysical Research: Planets"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1029\/2020JE006446","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1029\/2020JE006446","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/pdf\/10.1029\/2020JE006446","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,2]],"date-time":"2023-09-02T01:15:30Z","timestamp":1693617330000},"score":1,"resource":{"primary":{"URL":"https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/10.1029\/2020JE006446"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,7,29]]},"references-count":86,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2020,8]]}},"alternative-id":["10.1029\/2020JE006446"],"URL":"https:\/\/doi.org\/10.1029\/2020je006446","archive":["Portico"],"relation":{},"ISSN":["2169-9097","2169-9100"],"issn-type":[{"value":"2169-9097","type":"print"},{"value":"2169-9100","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,7,29]]},"assertion":[{"value":"2020-03-10","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2020-06-12","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2020-07-29","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e2020JE006446"}}