{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360865815486294656.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/j.scitotenv.2023.168068"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0048969723066950?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0048969723066950?httpAccept=text/plain"}},{"identifier":{"@type":"PMID","@value":"37914127"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Comparing nearshore and embayment scale assessments of submarine groundwater discharge: Significance of offshore groundwater discharge as a nutrient pathway"}],"description":[{"notation":[{"@value":"Submarine groundwater discharge (SGD) can influence biogeochemical cycles in coastal seas by delivering nutrients from the seafloor. Comparison between the nearshore and embayment scale assessments of SGD against river water discharge would be crucial for understanding biogeochemical impacts on the coastal seas because the discharge pattern (non-point or point pathway) is different. Here, we quantified SGD contribution to rivers in nutrient budgets at two scales within a coastal embayment (Obama Bay, Japan) by mass balance models of radon and radium isotopes. We then compared the SGD contribution between the two scales by the meta-analysis for regional data sets conducted in nearshore and embayment scales. The estimated SGD rates in the nearshore and embayment scales in the bay were 7.8 cm d"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380865815486294534","@type":"Researcher","foaf:name":[{"@value":"Toshimi Nakajima"}]},{"@id":"https://cir.nii.ac.jp/crid/1380865815486294674","@type":"Researcher","foaf:name":[{"@value":"Mao Kuragano"}]},{"@id":"https://cir.nii.ac.jp/crid/1380865815486294565","@type":"Researcher","foaf:name":[{"@value":"Makoto Yamada"}]},{"@id":"https://cir.nii.ac.jp/crid/1380865815486294787","@type":"Researcher","foaf:name":[{"@value":"Ryo Sugimoto"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00489697"}],"prism:publicationName":[{"@value":"Science of The Total Environment"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"2024-01","prism:volume":"908","prism:startingPage":"168068"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/","https://www.elsevier.com/legal/tdmrep-license","http://creativecommons.org/licenses/by-nc/4.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S0048969723066950?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S0048969723066950?httpAccept=text/plain"}],"createdAt":"2023-10-30","modifiedAt":"2025-04-01","project":[{"@id":"https://cir.nii.ac.jp/crid/1040011086182283008","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"22H05201"},{"@type":"JGN","@value":"JP22H05201"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PLANNED-22H05201/"}],"notation":[{"@language":"ja","@value":"河口から大陸棚における流動変動と物質の拡散過程"},{"@language":"en","@value":"Flow variability and material diffusion processes from estuaries to continental shelves"}]},{"@id":"https://cir.nii.ac.jp/crid/1040014481289306752","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"23KJ0334"},{"@type":"JGN","@value":"JP23KJ0334"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23KJ0334/"}],"notation":[{"@language":"ja","@value":"陸棚海域における新たな栄養塩供給過程：間隙水流入の影響評価"}]},{"@id":"https://cir.nii.ac.jp/crid/1040855511112467968","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"22H05202"},{"@type":"JGN","@value":"JP22H05202"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PLANNED-22H05202/"}],"notation":[{"@language":"ja","@value":"陸海境界領域を含む沿岸域における陸起源物質の動態解明と縁辺海への輸送量の定量"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050003824963531392","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"High-resolution mapping and time-series measurements of 222Rn concentrations and 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dissolved silica fluxes to the Mediterranean Sea traced using radium isotopes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292619856797440","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Nutrient inputs from submarine groundwater discharge (SGD) in Masan Bay, an embayment surrounded by heavily industrialized cities, Korea"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292620869958656","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Ra and Rn isotopes as natural tracers of submarine groundwater discharge in Tampa Bay, Florida"}]},{"@id":"https://cir.nii.ac.jp/crid/1360294643816498176","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"A Shift from Snow to Rain in Midlatitude Japan Increases Fresh Submarine Groundwater Discharge and Doubled Inorganic Carbon Flux over 20 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Reactions in a Coastal Groundwater Mixing Zone"}]},{"@id":"https://cir.nii.ac.jp/crid/1360584344419416576","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Submarine Groundwater Discharge-Derived Nutrient Loads to San Francisco Bay: Implications to Future Ecosystem Changes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360584344419469184","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Factors affecting the radon (222Rn) emanation from aquifer rock materials: Implications for radiological and groundwater tracer studies"}]},{"@id":"https://cir.nii.ac.jp/crid/1360584344419668608","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Using 222Rn to estimate submarine groundwater discharge (SGD) and the associated nutrient fluxes into Xiangshan Bay, East China 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spatially distributed radon time series and radium isotopes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360855569717603200","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Groundwater-driven nutrient inputs to coastal lagoons: The relevance of lagoon water recirculation as a conveyor of dissolved nutrients"}]},{"@id":"https://cir.nii.ac.jp/crid/1360855570214243584","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Radium tracing nutrient inputs through submarine groundwater discharge in the global ocean"}]},{"@id":"https://cir.nii.ac.jp/crid/1360857593683782912","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Nutrient fluxes from rivers, groundwater, and the ocean into the coastal embayment along the Sanriku ria coast, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360857598067882368","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Spatial variations in dissolved inorganic nutrients in the groundwaters along the Indian coast and their export to adjacent coastal waters"}]},{"@id":"https://cir.nii.ac.jp/crid/1360857598138405504","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Submarine Groundwater Discharge helps making nearshore waters heterotrophic"}]},{"@id":"https://cir.nii.ac.jp/crid/1360865820405088512","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Improving Estimation of Submarine Groundwater Discharge Using Radium and Radon Tracers: Application in Jiaozhou Bay, China"}]},{"@id":"https://cir.nii.ac.jp/crid/1360865820405651840","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Fluxes of dissolved organic carbon and nutrients via submarine groundwater discharge into subtropical Sansha Bay, China"}]},{"@id":"https://cir.nii.ac.jp/crid/1360865820405652992","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Environmental impact of nutrient fluxes associated with submarine groundwater discharge at an urbanized tropical coast"}]},{"@id":"https://cir.nii.ac.jp/crid/1360865820405812992","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Chemical inputs from a karstic submarine groundwater discharge (SGD) into an oligotrophic Mediterranean coastal area"}]},{"@id":"https://cir.nii.ac.jp/crid/1360865820406003584","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Seasonality of Nutrient Flux and Biogeochemistry in an Intertidal Aquifer"}]},{"@id":"https://cir.nii.ac.jp/crid/1361137044201952256","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Investigation of submarine groundwater discharge"}]},{"@id":"https://cir.nii.ac.jp/crid/1361137044859992960","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Fresh groundwater discharge insignificant for the world’s oceans but important for coastal ecosystems"}]},{"@id":"https://cir.nii.ac.jp/crid/1361137045827284608","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Spatial Distribution of Submarine Groundwater Discharge and Associated Nutrients within a Local Coastal Area"}]},{"@id":"https://cir.nii.ac.jp/crid/1361137045867502720","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Mixing and Transport in Coastal River Plumes"}]},{"@id":"https://cir.nii.ac.jp/crid/1361418518474680832","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Submarine Groundwater Discharge to a High-Energy Surf Zone at Stinson Beach, California, Estimated Using Radium Isotopes"}]},{"@id":"https://cir.nii.ac.jp/crid/1361418518527961600","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Submarine groundwater discharge and associated nutrient and carbon inputs into Sydney Harbour (Australia)"}]},{"@id":"https://cir.nii.ac.jp/crid/1361418520165855488","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Identifying the main sources of silicate in coastal waters of the Southern Gulf of Valencia (Western Mediterranean Sea)"}]},{"@id":"https://cir.nii.ac.jp/crid/1361418520977422720","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Submarine groundwater discharge as an important nutrient source influencing nutrient structure in coastal water of Daya Bay, China"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699994121103360","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Measurement of\n                    <sup>223</sup>\n                    Ra and\n                    <sup>224</sup>\n                    Ra in coastal waters using a delayed coincidence counter"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699994419924224","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Nutrient inputs to the coastal ocean through submarine groundwater discharge: controls and potential impact"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699996127166464","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Automated measurement of 224Ra and 226Ra in water"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981468906232576","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The diffusion coefficient of dissolved silica revisited"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981469817130880","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Nutrient biogeochemistry in a Gulf of Mexico subterranean estuary and groundwater‐derived fluxes to the coastal ocean"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981470462737536","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Quantification of point‐source groundwater discharges to the ocean from the shoreline of the Big Island, Hawaii"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981471179033344","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Submarine groundwater discharge driven nitrogen fluxes to Long Island Sound, NY: Terrestrial vs. marine sources"}]},{"@id":"https://cir.nii.ac.jp/crid/1362262945060395520","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Analytical Descriptions of Subaqueous Groundwater Seepage"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544418948701824","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Effect of tidal forcing on a subterranean estuary"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544419674757760","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Geochemical and Geophysical Examination of Submarine Groundwater Discharge and Associated Nutrient Loading Estimates into Lynch Cove, Hood Canal, WA"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544421339199360","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"An underground route for the water cycle"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825893993991680","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Seasonal Changes in Submarine Groundwater Discharge and Associated Nutrient Transport into a Tideless Semi-enclosed Embayment (Obama Bay, Japan)"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825894511646208","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Groundwater and pore water inputs to the coastal zone"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107369068305792","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Transformation of dissolved and particulate materials on continental shelves influenced by large rivers: plume processes"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107369215403136","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Global riverine N and P transport to ocean increased during the 20th  century despite increased retention along the aquatic continuum"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107370219328512","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"A New Mechanism for Submarine Groundwater Discharge From Continental Shelves"}]},{"@id":"https://cir.nii.ac.jp/crid/1363388843558377216","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Groundwater Discharge as an Important Land-Sea Pathway into Manila Bay, 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