| Seasonal Variation of the Korea Strait Bottom Cold Water and Its Relation to the Bottom Current |
16 DEC 2006 |
6 pages |
| Authors:
Young Ho Kim; Yun-Bae Kim; Kuh Kim; Kyung-Il Chang; Sang Jin Lyu; Yang-Ki Cho; William J. Teague; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
 | Analysis of high resolution hydrographic and current data revealed that the Korea Strait Bottom Cold Water (KSBCW) flowed into the Korea Strait from May to January and contained two temperature minimums, one in August/September and another in December/January. With the main current flows confined within 70 km of the Korean coast, maximum southwestward bottom currents corresponded with the temperature minimums. Time-series of bottom current and temperature near the Korean coast ... |
|
| Currents Through the Korea/Tsushima Strait: A Review of LINKS Observations |
SEP 2006 |
15 pages |
| Authors:
William J. Teague; Dong S. Ko; Gregg A. Jacobs; Henry T. Perkins; Jeffrey W. Book; Scott R. Smith; Kyung-Il Chang; Moon-Sik Suk; Kuh Kim; Sang Jin Lyu; Tswen Y. Tang; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| The Korea/Tsushima, Tsugaru, Soya, and Tatar Straits connect the Japan/East Sea (JES) with adjacent seas. Of the four straits, the Korea/Tsushima Strait (KTS) provides the vast majority of inflow into the JES and plays a major role in determining its dynamics. The heat and salt balances within the JES are in large part determined by the inflow through the KTS. Understanding of the relationships and forcing mechanisms of the inflow ... |
|
| Determining the Applicability of the Barotropic Approximation to the Mean Seasonal Flow Through the Tsushima/Korean Strait using Variational Assimilation |
21 JUL 2005 |
22 pages |
| Authors:
S. R. Smith; G. A. Jacobs; R. R. Leben; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS
|
| Variational assimilation is used to combine velocity and sea-surface height anomaly (SSHA) measurements with a system of dynamics to estimate the seasonal flow through the Taushima/Korean Strait for the summer, autumn and winter seasons of 1999-2000. The velocity measurements are from two lines of moored acoustic Doppler Current profilers (ADCPs) spanning the Tsushima/Korean strait just north and south of Tsushima island and the SSHA measurements are from the TOPEX altimeter. ... |
|
| Transport Variability Across the Korea/Tsushima Strait and the Tsushima Island Wake |
15 JUL 2005 |
20 pages |
| Authors:
William J. Teague; Paul A. Hwang; Gregg A. Jacobs; Jeffrey W. Book; Henry T. Perkins; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| Transport variations are calculated across the Korea/Tsushima Strait using continuous current measurements made between May 1999 and March 2000. Twelve bottom-mounted acoustic Doppler current profilers provide velocity profiles along two sections: one section (south line) at the strait entrance southwest (upstream) of Tsushima Island and the other section (north line) at the strait exit northeast (downstream) of Tsushima Island. Transport variations across the strait are large, particularly in the lee ... |
|
| Synoptic Forcing of the Korea Strait Transport |
18 AUG 2004 |
19 pages |
| Authors:
John D. Milliman; S. C. Riser; Gregg Jacobs; Dong S. Ko; Hans Ngodock; Ruth H. Preller; Shelley K. Riedlinger; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| Korea strait transport variations in the synoptic frequency band are examined using results of a numerical 3-D primitive equation model, satellite observed sea-level variations, a linear barotropic adjoint dynamic model, and observed transports. The 3-D numerical model does not assimilate observations, and the agreement with the observed transport implies that wind forcing is one of the main contributors to variations in the synoptic hand. The satellite observed and 3-D model ... |
|
| Data Assimilation Modeling of the Barotropic Tides in the Korea/Tsushima Strait |
2004 |
18 pages |
| Authors:
Jeffrey W. Book; Pavel Pistek; Henry Perkins; Keith R. Thompson; William J. Teague; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| During 1999-2000, 13 bottom-mounted acoustic Doppler current profilers (ADCPs) and 12 wave/tide gauges were deployed along two lines across the Korea/Tsushima Strait, providing long-term measurements of currents and bottom pressure. Tidally analyzed velocity and pressure data from the moorings are used in conjunction with other moored ADCPs, coastal tide gauge measurements, and altimeter measurements in a linear barotropic data assimilation model. The model fits the vertically averaged data to the ... |
|
| Current and Tide Observations in the Korea Strait |
30 MAY 2001 |
34 pages |
| Authors:
W. J. Teague; G. A. Jacobs; H. P. Perkins; J. W. Book; P. J. Hogan; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| Long-term current observations are made in the Korea Strait for the first time. Eleven bottom-mounted acoustic Doppler current profilers returned high quality current profile measurements along two lines, west and east of Tsushima Island for nearly a year. A high velocity current core was found to exist on the western slope of the strait west of Tsushima Island for the entire recording period. Tsushima Island disrupted the current flow towards ... |
|
| Currents in Korea-Tsushima Strait During Summer 1999 |
01 OCT 2000 |
5 pages |
| Authors:
H. Perkins; W. J. Teague; G. A. Jacobs; K. I. Chang; M.-S. Suk; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS
|
| Results are presented from continuous current measurements across Korea-Tsushima Strait between May and October 1999. The data are from eleven bottom-mounted Acoustic Doppler Current Profilers that recorded full-depth profiles of currents along two lines, one at each end of the Strait. The two sections show markedly different mean flow regimes. At the southern entrance, the cross-section flow varies smoothly across the channel, showing a broad maximum at mid-channel. The northern ... |
|
| Geoacoustic Model of the Strait of Korea |
OCT 91 |
|
| Authors:
K. B. Briggs; K. M. Fischer; NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE CENTER MS
|
 | Understanding geology of the Strait of Korea is critical for predictions of acoustic response because the region is a shallow-water, bottom- interacting area. Sediments are predominately terrigenous with a significant marine biogenic component and a wide range of textures. Sediments are distributed along the axis by strong currents that winnow fines and leave coarser material as the lag deposit. However, a conspicuous mud belt of silty clay derived from nearby ... |
|
| Bottom Loss Upgrade (BLUG) Extensions to Strategic Shallow Water Areas: Korea Strait |
SEP 85 |
|
| Authors:
William F. Monet; Robert R. Greene; SCIENCE APPLICATIONS INTERNATIONAL CORP MCLEAN VA
|
| BLUG is a worldwide Northern Hemisphere database of the acoustic properties of ocean bottom sediments. Using nine parameter it characterizes sound speed and attenuation profiles and sediment and basement interface reflectivity. This information is sufficient to calculate the acoustic propagation characteristics of bottom interacting acoustic signals for arbitrary source-receiver geometries. This report documents an effort to apply BLUG methodology to the shallow water acoustic propagation environment in the Korea Strait. ... |
|
Reports by Keyword(s)
*KOREAN STRAIT
