{"refrec":{"BRefID":259051,"RR":"<b>Borges, A.V; Champenois, W.; Gypens, N.; Delille, B.; Harlay, J.</b> (2016). Massive marine methane emissions from near-shore shallow coastal areas. <i>NPG Scientific Reports 6(27908)</i>: 8 pp. <a href=\"https://dx.doi.org/10.1038/srep27908\" target=\"_blank\">https://dx.doi.org/10.1038/srep27908</a>","BEntID":251060,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 6(27908)</i>: 8 pp. <a href=\"https://dx.doi.org/10.1038/srep27908\" target=\"_blank\">https://dx.doi.org/10.1038/srep27908</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Borges, A.V; Champenois, W.; Gypens, N.; Delille, B.; Harlay, J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Borges, A.V <i>et al.</i>","Englishabstract":"Methane is the second most important greenhouse gas contributing to climate warming. The open ocean is a minor source of methane to the atmosphere. We report intense methane emissions from the near-shore southern region of the North Sea characterized by the presence of extensive areas with gassy sediments. The average flux intensities (~130 µmol m<sup>-2</sup> d<sup>-1</sup>) are one order of magnitude higher than values characteristic of continental shelves (~30µmol m<sup>-2</sup> d<sup>-1</sup>) and three orders of magnitude higher than values characteristic of the open ocean (~0.4 µmol m<sup>-2</sup> d<sup>-1</sup>). The high methane concentrations (up to 1,128 nmol L<sup>-1</sup>) that sustain these fluxes are related to the shallow and well-mixed water column that allows an efficient transfer of methane from the seafloor to surface waters. This differs from deeper and stratified seep areas where there is a large decrease of methane between bottom and surface by microbial oxidation or physical transport. Shallow well-mixed continental shelves represent about 33% of the total continental shelf area, so that marine coastal methane emissions are probably under-estimated. Near-shore and shallow seep areas are hot spots of methane emission, and our data also suggest that emissions could increase in response to warming of surface waters.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Massive marine methane emissions from near-shore shallow coastal areas","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-11 01:32:09.147073","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2016,"MonPub":null,"DateUpdate":"2018-05-03","DateCreate":"2016-06-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000377755900001","VABBcode":null,"OpenAcc":1,"DOI":"10.1038/srep27908"},"refs":null,"anarec":{"AnaID":259051,"PubliDate":2016,"Pagination":"8 pp","XtraPublOfAnaID":null,"ISBN":null,"Volume":"6","Issue":"27908","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":208093,"SerRR":"Scientific Reports (Nature Publishing Group). 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