{"refrec":{"BRefID":358958,"RR":"<b>Hunt, C.; Demšar, U.; Dove, D.; Smeaton, C.; Cooper, R.; Austin, W.E.N.</b> (2020). Quantifying marine sedimentary carbon: A new spatial analysis approach using seafloor acoustics, imagery, and ground-truthing data in Scotland. <i>Front. Mar. Sci. 7</i>: 588. <a href=\"https://dx.doi.org/10.3389/fmars.2020.00588\" target=\"_blank\">https://dx.doi.org/10.3389/fmars.2020.00588</a>","BEntID":356673,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Front. Mar. Sci. 7</i>: 588. <a href=\"https://dx.doi.org/10.3389/fmars.2020.00588\" target=\"_blank\">https://dx.doi.org/10.3389/fmars.2020.00588</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Hunt, C.; Demšar, U.; Dove, D.; Smeaton, C.; Cooper, R.; Austin, W.E.N.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Hunt, C. <i>et al.</i>","Englishabstract":"Marine sediments are important repositories of organic matter, effectively burying organic carbon (OC) over geological timescales thus providing a climate regulation service. However, the spatial distribution of this marine sedimentary OC store is not well constrained. In this study we leverage a high resolution multibeam echosounder (MBES) survey taken at Loch Creran, a model fjordic site on the west coast of Scotland, to develop a new methodology for predicting the distribution of OC in surface sediments. Using an integrated approach, we use MBES survey, video imagery and ground-truthing data to produce a high-resolution (2 × 2 m) map of surficial carbon and calculate a 10 cm stock. We find that the backscatter survey reliably uncovers a heterogeneous seabed and that OC correlates strongly with the MBES backscatter signal as a function of sediment composition. We estimate that there are approximately 12,346 ± 2,677 t of OC held within the top 10 cm of mixed sediments across the MBES survey area (7.96 km<sup>2</sup>; 60% of the total area), upscaled to 20,577 ± 4,462 t of OC across Loch Creran (13.27 km<sup>2</sup>). Normalised by area, we find that fine sediments with small fractions of sand and gravel hold more OC than homogenous fine sediments. This initial work proposes a novel methodological approach to using high resolution MBES surveys to improve the spatial mapping of sedimentary carbon (C) and identification of C hotspots, enabling consideration of this resource in sedimentary carbon accounting, seabed management and climate mitigation strategie","AbstractOtherLang":" sediment, multibeam, seabed mapping, carbon stocks, fjord","BibLvlCode":"AS","StandardTitle":"Quantifying marine sedimentary carbon: A new spatial analysis approach using seafloor acoustics, imagery, and ground-truthing data in Scotland","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-10 01:32:46.416996","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"sediment, multibeam, seabed mapping, carbon stocks, fjord","OtherDescriptors":null,"Notes":null,"AnaPub":2020,"MonPub":null,"DateUpdate":"2022-10-31","DateCreate":"2022-10-31","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000553446800001","VABBcode":null,"OpenAcc":1,"DOI":"10.3389/fmars.2020.00588"},"refs":null,"anarec":{"AnaID":358958,"PubliDate":2020,"Pagination":"588","XtraPublOfAnaID":null,"ISBN":null,"Volume":"7","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":233602,"SerRR":"Frontiers in Marine Science. 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