Low-frequency current observations in the Korea/Tsushima Strait

被引:0
|
作者
Teague, WJ [1 ]
Jacobs, GA
Perkins, HT
Book, JW
Chang, KI
Suk, MS
机构
[1] USN, Res Lab, Meso & Finescale Ocean Phys Sect, Stennis Space Ctr, MS 39529 USA
[2] Korea Ocean Res & Dev Inst, Seoul, South Korea
关键词
D O I
10.1175/1520-0485(2002)032<1621:LFCOIT>2.0.CO;2
中图分类号
P7 [海洋学];
学科分类号
0707 ;
摘要
High resolution, continuous current measurements made in the Korea/Tsushima Strait between May 1999 and March 2000 are used to examine current variations having time periods longer than 2 days. Twelve bottom-mounted acoustic Doppler current profilers provide velocity profiles along two sections: one section at the strait entrance southwest of Tsushima Island and the second section at the strait exit northeast of Tsushima Island. Additional measurements are provided by single moorings located between Korea and Tsushima Island and just north of Cheju Island in Cheju Strait. The two sections contain markedly different mean flow regimes. A high velocity current core exists at the southwestern section along the western slope of the strait for the entire recording period. The flow directly downstream of Tsushima Island contains large variability, and the flow is disrupted to such an extent by the island that a countercurrent commonly exists in the lee of the island. The northeastern section is marked by strong spatial variability and a large seasonal signal but in the mean consists of two localized intense flows concentrated near the Korea and Japan coasts. Peak nontidal currents exceed 70 cm s(-1) while total currents exceed 120 cm s(-1). The estimated mean transport calculated from the southwest line is 2.7 Sv (Sv equivalent to 10(6) m(3) s(-1)). EOF analyses indicate total transport variations in summer are due mainly to transport variations near the Korea coast. In winter, contributions to total transport variations are more uniformly distributed across the strait.
引用
收藏
页码:1621 / 1641
页数:21
相关论文
共 50 条
  • [21] PROFILES OF LOW-FREQUENCY SUBSURFACE CURRENT FLUCTUATIONS IN THE STRAIT OF GEORGIA DURING 1981 AND 1982
    YAO, T
    POND, S
    MYSAK, LA
    JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1985, 90 (NC4): : 7189 - 7198
  • [22] Low-frequency flow in the bottom layer of the Strait of Otranto
    Ursella, Laura
    Gacic, Miroslav
    Kovacevic, Vedrana
    Deponte, Davide
    CONTINENTAL SHELF RESEARCH, 2012, 44 : 5 - 19
  • [23] LOW-FREQUENCY COMPONENTS OF FLOW IN BERING STRAIT SYSTEM
    TRIPP, RB
    COACHMAN, LK
    AAGAARD, K
    SCHUMACHER, JD
    TRANSACTIONS-AMERICAN GEOPHYSICAL UNION, 1978, 59 (12): : 1091 - 1091
  • [24] THE FORCING OF LOW-FREQUENCY MOTIONS WITHIN BASS STRAIT
    MIDDLETON, JF
    VIERA, F
    JOURNAL OF PHYSICAL OCEANOGRAPHY, 1991, 21 (05) : 695 - 708
  • [25] AN OBJECTIVE ANALYSIS OF THE LOW-FREQUENCY CURRENTS IN THE STRAIT OF GEORGIA
    STACEY, MW
    POND, S
    LEBLOND, PH
    ATMOSPHERE-OCEAN, 1988, 26 (01) : 1 - 15
  • [26] Effect of the along-strait wind on the volume transport through the Tsushima/Korea Strait in September
    Moon, Jae-Hong
    Hirose, Naoki
    Yoon, Jong-Hwan
    Pang, Ig-Chan
    JOURNAL OF OCEANOGRAPHY, 2009, 65 (01) : 17 - 29
  • [27] Effect of the along-strait wind on the volume transport through the Tsushima/Korea Strait in September
    Jae-Hong Moon
    Naoki Hirose
    Jong-Hwan Yoon
    Ig-Chan Pang
    Journal of Oceanography, 2009, 65 : 17 - 29
  • [28] Age and growth of the lizardfish Saurida elongata from the Tsushima/Korea Strait
    Takeshi Sakai
    Michio Yoneda
    Tetsuro Shiraishi
    Muneharu Tokimura
    Hiroshi Horikawa
    Michiya Matsuyama
    Fisheries Science, 2009, 75 : 895 - 902
  • [29] Age and growth of the lizardfish Saurida elongata from the Tsushima/Korea Strait
    Sakai, Takeshi
    Yoneda, Michio
    Shiraishi, Tetsuro
    Tokimura, Muneharu
    Horikawa, Hiroshi
    Matsuyama, Michiya
    FISHERIES SCIENCE, 2009, 75 (04) : 895 - 902
  • [30] Nutrient distribution and effects on phytoplankton assemblages in the western Korea/Tsushima Strait
    Jang, P-G
    Shin, H. H.
    Baek, S. H.
    Jang, M. C.
    Lee, T. S.
    Shin, K.
    NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH, 2013, 47 (01) : 21 - 37