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Seasonal differences in dissolved organic matter properties and sources in an Arctic fjord: Implications for future conditions

Cited 16 time in wos
Cited 17 time in scopus

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dc.contributor.authorBrogi, Simona Retelletti-
dc.contributor.authorJung, Jinyoung-
dc.contributor.authorHa, Sun-Yong-
dc.contributor.authorHur, Jin-
dc.date.accessioned2020-10-21T02:22:35Z-
dc.date.available2020-10-21T02:22:35Z-
dc.date.issued2019-12-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/10966-
dc.description.abstractThe Arctic Ocean is undergoing drastic changes due to the effects of climate change. Arctic fjords are preferred systems to study these changes as they respond quickly to variations in ocean, land and atmosphere conditions. In this study, we investigated for the first time the seasonal variability of dissolved organic matter (DOM) properties and its origin in an Arctic fjord, which allows for an assessment of the future potential effects of climate change in this environment. We conducted an integrated analysis of the concentrations, optical properties (absorption and fluorescence), and molecular size distributions of DOM in two seasons (October 2017 and April 2018) and in eight to ten stations in Kongsfjorden (Svalbard) along with the related environmental parameters such as chlorophyll-a, inorganic nutrients, particulate organic carbon (POC), temperature, and salinity. Our results showed that, in both seasons, the DOM in the fjord was predominately of autochthonous origin with a seasonally variable terrestrial input. The dissolved organic carbon (DOC) concentrations were consistently higher in October than in April at each station. Fluorescence spectroscopy revealed a marked seasonal variability depending on the DOM fluorophore types and size fractions. In October, humic-like and tryptophan-like substances were dominantwhereas in April, tyrosine-like compounds represented, on average, 58% of the DOMfluorescence. This study points out the key role of spring sea ice melting in determining the DOM properties of the fjord in spring.en_US
dc.languageEnglishen_US
dc.language.isoenen_US
dc.subjectEnvironmental Sciences & Ecologyen_US
dc.subject.classificationDasan Stationen_US
dc.titleSeasonal differences in dissolved organic matter properties and sources in an Arctic fjord: Implications for future conditionsen_US
dc.title.alternative북극 피오리오드 안에서의 용존유기물의 특성과 기원의 계절적 차이: 미래 환경변화에 대한 영향en_US
dc.typeArticleen_US
dc.identifier.bibliographicCitationBrogi, Simona Retelletti, et al. 2019. "Seasonal differences in dissolved organic matter properties and sources in an Arctic fjord: Implications for future conditions". <em>SCIENCE OF THE TOTAL ENVIRONMENT</em>, 694(1): 133740-133748.-
dc.citation.titleSCIENCE OF THE TOTAL ENVIRONMENTen_US
dc.citation.volume694en_US
dc.citation.number1en_US
dc.identifier.doi10.1016/j.scitotenv.2019.133740-
dc.citation.startPage133740en_US
dc.citation.endPage133748en_US
dc.description.articleClassificationSCI-
dc.description.jcrRateJCR 2017:11.157en_US
dc.subject.keywordArcticen_US
dc.subject.keywordChlorophyll-aen_US
dc.subject.keywordDOMen_US
dc.subject.keywordEEMsen_US
dc.subject.keywordKongsfjordenen_US
dc.subject.keywordMolecular size distributionen_US
dc.identifier.localId2019-0331-
dc.identifier.scopusid2-s2.0-85073700919-
dc.identifier.wosid000496780900062-
Appears in Collections  
2019-2019, Carbon assimilation rate of sea ice ecosystem in the Kongsfjorden MIZ, Arctic (19-19) / Ha, Sun-Yong (PE19170)
2018-2019, Investigation of submarine resource environment and seabed methane release in the Arctic (18-19) / Jin, Young Keun (PM18050)
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