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최성득

Choi, Sung-Deuk
Environmental Analytical Chemistry Lab.
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dc.citation.endPage 143 -
dc.citation.startPage 137 -
dc.citation.title ATMOSPHERIC ENVIRONMENT -
dc.citation.volume 120 -
dc.contributor.author Kang, Jung-Ho -
dc.contributor.author Hwang, Heejin -
dc.contributor.author Hong, Sang Bum -
dc.contributor.author Do Hur, Soon -
dc.contributor.author Choi, Sung-Deuk -
dc.contributor.author Lee, Jeonghoon -
dc.contributor.author Hong, Sungmin -
dc.date.accessioned 2023-12-22T00:37:24Z -
dc.date.available 2023-12-22T00:37:24Z -
dc.date.created 2015-12-07 -
dc.date.issued 2015-11 -
dc.description.abstract Polar ice sheets conserve atmospheric aerosols at the time of snowfall, which can be used to reconstruct past climate and environmental conditions. We investigated mineral dust and major ion records in snowpit samples obtained from the northwestern Greenland ice sheet near the North Greenland Eemian Ice Drilling (NEEM) camp in June 2009. We analyzed the samples for mineral dust concentrations as well as stable water isotopes (delta O-18, delta D, and deuterium excess) and major ions (Cl-, SO42-, methanesulfonic acid (MSA), Na+ and Ca2+). Seasonal delta O-18 and delta D cycles indicate that the snowpit samples covered a six-year period from spring 2003 to early summer 2009. Concentrations of mineral dust, nss-Ca2+, and nss-SO42- showed seasonal deposition events with maxima in the winter spring layers. On the other hand, the Cl-/Na+ ratio and the concentrations of MSA exhibited maxima in the summer layers, making them useful indicators for the summer season. Moreover, an anomalous atmospheric mineral dust event was recorded at a depth of 165-170 cm corresponding to late winter 2005 to spring 2006. A back trajectory analysis suggests that a major contributor to the Greenland aerosol was an air mass passing over the Canadian Arctic and North America. Several trajectories point to Asian regions as a dust source. The mineral dust deposited at NEEM was strongly influenced by long-range atmospheric transport and dust input from arid source areas in northern China and Mongolia. (C) 2015 Elsevier Ltd. All rights reserved -
dc.identifier.bibliographicCitation ATMOSPHERIC ENVIRONMENT, v.120, pp.137 - 143 -
dc.identifier.doi 10.1016/j.atmosenv.2015.08.062 -
dc.identifier.issn 1352-2310 -
dc.identifier.scopusid 2-s2.0-84940993443 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/17932 -
dc.identifier.url http://www.sciencedirect.com/science/article/pii/S1352231015303071 -
dc.identifier.wosid 000364255700014 -
dc.language 영어 -
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD -
dc.title Mineral dust and major ion concentrations in snowpit samples from the NEEM site, Greenland -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Environmental Sciences; Meteorology & Atmospheric Sciences -
dc.relation.journalResearchArea Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor Atmospheric mineral dust -
dc.subject.keywordAuthor Major ions -
dc.subject.keywordAuthor Seasonal variation -
dc.subject.keywordAuthor Greenland -
dc.subject.keywordPlus POLAR ICE CORES -
dc.subject.keywordPlus SEASONAL-VARIATIONS -
dc.subject.keywordPlus SEA-ICE -
dc.subject.keywordPlus PRECIPITATION -
dc.subject.keywordPlus ORIGIN -
dc.subject.keywordPlus SHEET -
dc.subject.keywordPlus SUMMIT -
dc.subject.keywordPlus MICROPARTICLES -
dc.subject.keywordPlus VARIABILITY -
dc.subject.keywordPlus TROPOSPHERE -

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