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Analyses of sea surface height, bott...

Xu, Yongsheng.

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Analyses of sea surface height, bottom pressure and acoustic travel time in the Japan/East Sea.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Analyses of sea surface height, bottom pressure and acoustic travel time in the Japan/East Sea./
作者:	Xu, Yongsheng.
面頁冊數:	86 p.
附註:	Adviser: Randolph Watts.
Contained By:	Dissertation Abstracts International68-01B.
標題:	Physical Oceanography. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3248246

Analyses of sea surface height, bottom pressure and acoustic travel time in the Japan/East Sea.
Xu, Yongsheng.

Analyses of sea surface height, bottom pressure and acoustic travel time in the Japan/East Sea. - 86 p.

Adviser: Randolph Watts.

Thesis (Ph.D.)--University of Rhode Island, 2006.

A two-dimensional array of pressure-gauge-equipped inverted echo sounders (PIESs) was deployed in the southwestern Japan/East Sea (JES) from June 1999 to July 2001, designed to observe variability in the barotropic and baroclinic circulation. The findings from these studies are reported here.Subjects--Topical Terms:

1019163
Physical Oceanography.

Analyses of sea surface height, bottom pressure and acoustic travel time in the Japan/East Sea.
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100 1 $a Xu, Yongsheng. $3 1270449
245 1 0 $a Analyses of sea surface height, bottom pressure and acoustic travel time in the Japan/East Sea.
300 $a 86 p.
500 $a Adviser: Randolph Watts.
500 $a Source: Dissertation Abstracts International, Volume: 68-01, Section: B, page: 0175.
502 $a Thesis (Ph.D.)--University of Rhode Island, 2006.
520 $a A two-dimensional array of pressure-gauge-equipped inverted echo sounders (PIESs) was deployed in the southwestern Japan/East Sea (JES) from June 1999 to July 2001, designed to observe variability in the barotropic and baroclinic circulation. The findings from these studies are reported here.
520 $a A nearly uniform barotropic basin-scale sea level variation exists in the JES with amplitudes about 5 cm. They are energetic at time scales of 2-70 days, which are shorter than the ERS-2 and TOPEX/Poseidon satellite altimetry Nyquist periods of 70 days and 20 days. The common mode produces a substantial alias in satellite observations; furthermore, the combined aliasing effects on multi-tracks can mimic mesoscale eddies and may qualitatively alter the synoptic mapping. Our alias can be suppressed by removing the common mode from satellite SSH. 78% of the common mode variance can be removed in the Japan/East Sea by averaging among coastal tide gauge records to estimate the common mode.
520 $a High frequency oscillations with period around 7 hours are shown to be organized in a fundamental basin mode in the JES. The oscillation consists of a single amphidromic point around which the high water propagates counter-clockwise with along-coast wavelength equal to the circumference of the basin and largest amplitude at the narrow northeast region of the JES. The time series of basin oscillations is modulated in packets of time scales 2-16 days shown to coincide with synoptic scale forcing over the JES. The basin oscillations exhibit seasonal modulation and vary jointly with wind forcing.
520 $a A coupled mode analysis confirms that bottom topography vertical coupling in the Japan/East Sea. In the first coupled mode, the deep response flows are largely confined on closed potential vorticity regions created by the Ulleung Basin depression or by the Korea Plateau, while the upper layer exhibits a migration of the Ulleung Warm Eddy. In the second mode, the upper and deep layer have similar spatial patterns peaked at a site near the southwestern corner of the Korea Plateau. The second mode appears to arise from the time varying strength of a mean deep anticyclone.
590 $a School code: 0186.
650 4 $a Physical Oceanography. $3 1019163
650 4 $a Remote Sensing. $3 1018559
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690 $a 0799
710 2 $a University of Rhode Island. $3 1022014
773 0 $t Dissertation Abstracts International $g 68-01B.
790 $a 0186
790 1 0 $a Watts, Randolph, $e advisor
791 $a Ph.D.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3248246