{"refrec":{"BRefID":338973,"RR":"Cassotto, R.K.; Burton, J.C.; Amundson, J.M.; Fahnestock, M.A.; Truffer, M. (2021). Granular decoherence precedes ice mélange failure and glacier calving at Jakobshavn Isbræ. Nature Geoscience 14(6): 417-422. https://dx.doi.org/10.1038/s41561-021-00754-9","BEntID":335608,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". Nature Geoscience 14(6): 417-422. https://dx.doi.org/10.1038/s41561-021-00754-9","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Cassotto, R.K.; Burton, J.C.; Amundson, J.M.; Fahnestock, M.A.; Truffer, M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Cassotto, R.K. et al.","Englishabstract":"The stability of the world’s largest glaciers and ice sheets depends on mechanical and thermodynamic processes occurring at the glacier–ocean boundary. A buoyant agglomeration of icebergs and sea ice, referred to as ice mélange, often forms along this boundary and has been postulated to affect ice-sheet mass losses by inhibiting iceberg calving. Here, we use terrestrial radar data sampled every 3 min to show that calving events at Jakobshavn Isbræ, Greenland, are preceded by a loss of flow coherence in the proglacial ice mélange by up to an hour, wherein individual icebergs flowing in unison undergo random displacements. A particle dynamics model indicates that these fluctuations are likely due to buckling and rearrangements of the quasi-two-dimensional material. Our results directly implicate ice mélange as a mechanical inhibitor of iceberg calving and further demonstrate the potential for real-time detection of failure in other geophysical granular materials.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Granular decoherence precedes ice mélange failure and glacier calving at Jakobshavn Isbræ","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2021-06-18","DateCreate":"2021-06-14","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000655717900002","VABBcode":null,"OpenAcc":0,"DOI":"10.1038/s41561-021-00754-9"},"refs":null,"anarec":{"AnaID":338973,"PubliDate":2021,"Pagination":"417-422","XtraPublOfAnaID":null,"ISBN":null,"Volume":"14","Issue":"6","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":123796,"SerRR":"Nature Geoscience. 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