Deep flow and transport through the Ulleung Interplain Gap in the Southwestern East/Japan Sea SCIE SCOPUS

Cited 10 time in WEB OF SCIENCE Cited 12 time in Scopus
Title
Deep flow and transport through the Ulleung Interplain Gap in the Southwestern East/Japan Sea
Author(s)
Chang, Kyung-Il; Kim, Kuh; Kim, Yun-Bae; Teague, William J.; Lee, Jae Chul; Lee, Jae-Hak
KIOST Author(s)
Lee, Jae Hak(이재학)
Publication Year
2009-01
Abstract
Deep circulation in the southwestern East/Japan Sea through the Ulleung Interplain Cap (UIG), a possible pathway for deep-water exchange, was directly measured for the first time. Five concurrent current meter moorings were positioned to effectively span the UIG between the islands of Ulleungdo to the west and Dokdo to the east. They provided a 495-day time series of deep currents below 1800 m depth spanning the full breadth of the East Sea Deep and Bottom Water flowing from the Japan Basin into the Ulleung Basin. The UIG circulation is found to be mainly a two-way flow with relatively weak southward flows directed into the Ulleung Basin over about two-thirds of the western UIG. A strong, persistent, and narrow compensating northward outflow occurs in the eastern UIG near Dokdo and is first referred to here as the Dokdo Abyssal Current. The width of the abyssal current is about 20 km below 1800 m depth. The low-frequency variability of the transports is dominated by fluctuations with a period of about 40 days for inflow and outflow transports. The 40-day fluctuations of both transports are statistically coherent, and occur almost concurrently. The overall mean transport of the deep water below 1800 m into the Ulleung Basin over the 16.5 months is about 0,005 Sv (1 Sv = 10(6) m(3) s(-1)), with an uncertainty of 0.025 Sv indicating net transport is negligible below 1800 m through the UIG. (C) 2008 Elsevier Ltd. All rights reserved.
ISSN
0967-0637
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4345
DOI
10.1016/j.dsr.2008.07.015
Bibliographic Citation
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, v.56, no.1, pp.61 - 72, 2009
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
JAPAN/EAST SEA; EAST SEA; VARIABILITY; CIRCULATION; BASIN; EDDY
Keywords
East/Japan Sea; Ulleung Interplain Gap; Deep currents; Volume transport
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
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