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RISS 인기검색어
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- 저자 : Shi Hyun-Cheul (검색결과 2 건)
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Holocene relative sea-level changes inferred from multiple proxies on the west coast of South Korea
Song, Bing,Yi, Sangheon,Yu, Shi-Yong,Nahm, Wook-Hyun,Lee, Jin-Young,Lim, Jaesoo,Kim, Jin-Cheul,Yang, Zhongyong,Han, Min,Jo, Kyoung-nam,Saito, Yoshiki Elsevier 2018 Palaeogeography, palaeoclimatology, palaeoecology Vol.496 No.-
<P><B>Abstract</B></P> <P>Understanding past relative sea-level (RSL) changes is crucial for predicting future coastal evolution, particularly within the context of accelerated melting of polar ice sheets due to global warming. RSL records are scarce in many regions along the Pacific coast. Here, we present a Holocene RSL curve for the west coast of South Korea based on detailed analyses of four sediment cores and the synthesis of existing sea-level index points without correction by tectonic, sediment compaction and other effects. Our record shows that the local sea level rose rapidly during the early Holocene and then fell gradually toward the present position during the late Holocene. An apparent sea-level highstand of ca. 1–2 m occurred 7–4 cal kyr B.P. A rapid sea-level rise of ~1.4 cm yr<SUP>−1</SUP> during the early Holocene is a manifestation of polar ice sheet decay, while the apparent mid-Holocene sea-level highstand appears to be a signal of the hydro-isostasy of the far-field continental shelf. The result was confirmed by a glacial isostatic adjustment (GIA) model. Holocene RSL change on the west coast of South Korea was closely linked to global temperature and ice sheet decay, especially during the early Holocene. There is a close relationship between sea-level change in the study area and Laurentide Ice Sheet (LIS) decay.</P> <P><B>Highlights</B></P> <P> <UL> <LI> A new Holocene sea-level curve with mid-Holocene highstand was reported. </LI> <LI> A similar Holocene sea level curve was reported using a GIA model. </LI> <LI> The rapid sea-level rise is a manifestation of early Holocene polar ice sheet decay. </LI> <LI> The mid-Holocene high stand sea level is a signal of hydro-isostatic effects. </LI> </UL> </P>
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장희선,신현철,Jang Hee-Seon,Shi Hyun-Cheul 한국정보기술전략혁신학회 2002 情報學硏究 Vol.5 No.4
MPLS is a integrated technology by using routing function and label swapping in the network layer. Based on the previous forwarding equivalence classes, it adds the fixed length label in ingress of the MPLS domain. For the routing, without the packet header information, it uses label for the forwarding decisions. In this paper, traffic engineering requirements in the MPLS internet will be setup. The traffic engineering function have to be performed previously with the network topology. In addition to, we presents the IP network topology and main function with MPLS signaling protocol.
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