Accumulation of anthropogenic and natural radionuclides in bottom sediments of the Northwest Pacific Ocean SCIE SCOPUS
DC Field | Value | Language |
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dc.contributor.author | Moon, DS | - |
dc.contributor.author | Hong, GH | - |
dc.contributor.author | Kim, YI | - |
dc.contributor.author | Baskaran, M | - |
dc.contributor.author | Chung, CS | - |
dc.contributor.author | Kim, SH | - |
dc.contributor.author | Lee, HJ | - |
dc.contributor.author | Lee, SH | - |
dc.contributor.author | Povinec, PP | - |
dc.date.accessioned | 2020-04-21T06:40:39Z | - |
dc.date.available | 2020-04-21T06:40:39Z | - |
dc.date.created | 2020-01-28 | - |
dc.date.issued | 2003 | - |
dc.identifier.issn | 0967-0645 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/5601 | - |
dc.description.abstract | Activities of anthropogenic radionuclides in bottom sediments of the Northwest-Central and West Caroline basins of the Northwest Pacific Ocean are reported. Down-core distributions of natural radionuclides were also investigated in order to elucidate the sedimentation processes of anthropogenic radionuclides in the seafloor. In the Northwest-Central Basin, the inventories of Pu239 + 240 and Am-241 decrease from south to north while the opposite trend is observed for Cs-137 and Sr-90. This latitudinal gradient in the inventories of artificial radionuclides reflects higher fluxes of Pu239 + 240 and Am-241 near the weapons test sites and transport of Cs-137 and Sr-90 over longer distances, as well as the regional differences in sediment-mixing and accumulation rates. In the West Caroline Basin, relatively low inventories of Pu239 + 240 and Am-241 were observed due to the topographic isolation of deep water. Sediment-mixing rates were calculated using down-core distributions of Pu239+240, Am-241, Cs-137 and Sr-90 based on two distinct models (continuous and constant) of tracer input and with a third model with pulsed input during the peak fallout period. The continuous input model yielded mixing coefficients comparable to those derived from excess Pb-210 profiles within an order of magnitude. (C) 2003 Elsevier Ltd. All rights reserved. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | WEST CAROLINE BASIN | - |
dc.subject | MID-ATLANTIC BIGHT | - |
dc.subject | DEEP-SEA SEDIMENTS | - |
dc.subject | EQUATORIAL PACIFIC | - |
dc.subject | CONTINENTAL-SLOPE | - |
dc.subject | FALLOUT RADIONUCLIDES | - |
dc.subject | MIXING RATES | - |
dc.subject | PLUTONIUM | - |
dc.subject | PB-210 | - |
dc.subject | THORIUM | - |
dc.title | Accumulation of anthropogenic and natural radionuclides in bottom sediments of the Northwest Pacific Ocean | - |
dc.type | Article | - |
dc.citation.endPage | 2673 | - |
dc.citation.startPage | 2649 | - |
dc.citation.title | DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY | - |
dc.citation.volume | 50 | - |
dc.citation.number | 17-21 | - |
dc.contributor.alternativeName | 홍기훈 | - |
dc.contributor.alternativeName | 김영일 | - |
dc.contributor.alternativeName | 정창수 | - |
dc.contributor.alternativeName | 김석현 | - |
dc.contributor.alternativeName | 이희준 | - |
dc.identifier.bibliographicCitation | DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, v.50, no.17-21, pp.2649 - 2673 | - |
dc.identifier.doi | 10.1016/S0967-0645(03)00140-1 | - |
dc.identifier.wosid | 000186077900005 | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | WEST CAROLINE BASIN | - |
dc.subject.keywordPlus | MID-ATLANTIC BIGHT | - |
dc.subject.keywordPlus | DEEP-SEA SEDIMENTS | - |
dc.subject.keywordPlus | EQUATORIAL PACIFIC | - |
dc.subject.keywordPlus | CONTINENTAL-SLOPE | - |
dc.subject.keywordPlus | FALLOUT RADIONUCLIDES | - |
dc.subject.keywordPlus | MIXING RATES | - |
dc.subject.keywordPlus | PLUTONIUM | - |
dc.subject.keywordPlus | PB-210 | - |
dc.subject.keywordPlus | THORIUM | - |
dc.relation.journalWebOfScienceCategory | Oceanography | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Oceanography | - |