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博碩士論文 etd-0511111-142340 詳細資訊
Title page for etd-0511111-142340
論文名稱
Title
應用觀測水文資料分析高屏峽谷內潮產生的機制
Analysis of Internal Tide Generation Mechanisms in Gaoping Submarine Canyon Based on Hydrographic Measurements
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
39
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2011-01-24
繳交日期
Date of Submission
2011-05-11
關鍵字
Keywords
高屏峽谷、內潮、機制
Gaoping Submarine Canyon, Generation, Internal Tide
統計
Statistics
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中文摘要
內潮是在海水密度分層介面上所產生的一種流體擾動,其主要的機制為當正壓潮往返經過峽谷邊緣、海脊或海檻時,造成擾動所產生,其運動週期和潮汐週期相同。高屏峽谷相關研究顯示有內潮的存在,但其產生機制及發生位置仍不清楚。本研究利用近年的四次航次的儀器觀測資料和船測資料來進行分析。
研究結果發現:(1)由sb-ADCP在高屏峽谷口兩條測線重複探測的海流資料繪制的半日潮M2相位顯示,往峽谷內其相位變化增大,在陸棚和峽谷的交接處其相位變化最小,說明內潮由峽谷口往內傳遞。(2)峽谷口處地形的變化所產生的內潮不是直接沿著峽谷底層往峽谷內傳遞,由潮汐橢圓圖推估其能量向上傳到離水深150公尺左右的海水密度分層,形成介面波傳遞進峽谷。(3)底碇ADCP 觀測結果,驗証內潮傳遞能量進峽谷約在水深150左右處,並向峽谷內介面層深度有遞減趨勢。
Abstract
Internal tide is generated in the interface of density stratification by some hydrodynamic disturbance. The major mechanisms are borotrophic tidal current oscillated at the edge of the continental shelf, submarine canyons, ridges or sills. The resulting disturbance generated has the same motion cycle of tidal period. There were internal tides reported in the Kaoping Submarine Canyon. The generation sites and mechanisms, however, are not clear. This study analysis four cruises of field observed data using ship mounted ADCP and CTD, and moored temperature strings and current meters.
The results showed: (1) The phase of M2 tidal current increase toward the canyon head, with minimum value at the canyon mouth. This result implies that the internal tide was generated near the canyon mouth and propagated up canyon with the thermocline decreasing toward the shallower water. (2) The internal tide generated at the canyon mouth propagated, through some mechanisms, at the upper layer density interface about 150m instead of beaming near the bottom layer where the current and topography interact. (3) The vertical variations of tidal ellipse and phase based on bottom mounted ADCP support the results of ship mounted observations, the internal tidal energy propagates near the interface of 150m below the surface.
目次 Table of Contents
謝誌............................................................................................................I
中文摘要...................................................................................................II
英文摘文..................................................................................................III
目 錄........................................................................................................IV
第一章、前言..............................................................................................1
1-1 峽谷簡介.................................................................................1
1-2 文獻回顧.. ..............................................................................2
1-3 研究目的.................................................................................4
第二章、現場觀測.....................................................................................6
2-1船碇式都普勒流剖儀(sb-ADCP)資料....................................6
2-2 溫鹽深儀(CTD)水文觀測......................................................8
2-3 底碇式都普勒流剖儀(ADCP)...............................................9
第三章、資料處理與分析方法................................................................11
3-1 資料品管...............................................................................11
3-1-1 sb-ADCP資料處理.......................................................11
3-1-2 Long Ranger ADCP 資料處理....................................12
3-1-3 CTD資料處理..............................................................12
3-2 分析方法...............................................................................13
3-2-1 調合分析.....................................................................13
3-2-2 海流分析方法.............................................................14
第四章、結果與討論................................................................................15
4-1 沿峽谷M2之潮流椭圓及相位的變化..................................15
4-2 峽谷內定點海流變化...........................................................20
4-3 橫過峽谷口海流受水深地形之變化...................................24
4-4 垂直溫度變化.......................................................................25
4-5 所遇到的困難.......................................................................28
第五章、結論...........................................................................................29
第六章、參考文獻....................................................................................30
附錄A、 CTD測站資料表.......................................................................32
參考文獻 References
張育嘉,2001。高屏峽谷及附近海域之流場觀測,國立中山大學海洋資訊學系,共91頁。
林育如,2006。高屏峽谷水團運動受地形水深之影響,國立中山大學海洋物理研究所,共74頁。
郭朴,方文東,與紅兵,2006。近海陸架區內潮觀測研究展,地球科學進展,21,617-622。
王君豪,2007。高屏溪口流場三維結構的觀測分析,國立中山大學海洋物理研究所,共84頁。
李盈槽,2009。高屏峽谷內潮受地形及分層效應之數值模擬,國立中山大學海下科技暨應用海洋物理研究所,共59頁。
林聖欽,2009。以聲學回波強度及水文資料探討高屏峽谷水團受內潮運動之影響,共98頁。
Baine, P., G., 1982. On internal tide generation models, Deep-sea Research, 29, 307-388.
Emil, T. P., K. R. Leslie, D. P. Jeffrey, 1997. Observations of the Internal Tide in Monterey Canyon, Petruncio Et al, 1997, 1873-1903.
Garrett, C., T. Gerkema, 2006. On the Body-Force Term in Internal-Tide Generation, Journal of Physical oceanography, 2006, 2172-2175.
Hickey, B., Baker, E and Kachel, N, 1986. Suspended particle movement in and around Quinault Submarine Canyon. Marine Geology, Vol. 71,pp.35-83
Klymak, J. M., R. Pinkel, L. Rainville, 2007. Direct Braking of the internal Tide near Topography: kaena Ridge, Hawaii, Journal of Physical Oceanography, 38, 380-399.
Laurent, L. S., S. Stringer, C. Garrett, Dominique Perrauit-Joncas, 2003. The generation of internal tides at abrupt topography, Deep-sea Research I , 50, 987-1003.
Lee, I. H., Y. H. Wang, J. T. Liu, W. S. Chuang, J. Xu, 2009. Internal tidal currents in the gaoping(kaoping)submarine Canyon. Journal of Marine Systems, 76, 397-404.
Legg, S., 2003. Internal Tides Generated on a Corrugated Continental Slope I: Cross-slope Barotropic Forcing, Journal of Physicla oceanography, 34, 156-173.
Liu, J. T., Liu, K. J. And Haung, J. C., 2002. The effect of a submarine canyon on the river sediment dispersal and inner shelf sediment movements in southern Taiwan. Marine Geology, 181,357-386.
S. Khatiwala, 2003. Generation of internal tides in an ocean of finite depth: analytical and numerical calculations, Deep-Sea Research I, 50, 3-21.
Stephen, D., R. H. Griffiths, J. Grimshaw, 2006. Internal Tide Generation at the Continental Shelf Modeled Using a Modal Decomposition: Two-Dimensional results, Journal of Physical Oceanography, 2006, 428-451.
Klymak, J. M., R. Pinkel, L. Rainville, 2007. Direct Braking of the internal Tide near Topography: kaena Ridge, Hawaii, Journal of Physical Oceanography, 38, 380-399.
Wang, Y. H., I. H. Lee, J.T. Liu, 2008. Observation of internal tidal currents in the Kaoping canyon off southwestern Taiwan. Estuarine, Coastal and Shelf Science, 80, 153-160.
Xu, J. P., Noble, M., Eittreim, S. L., Rosenfeld, L. K., Schwing, F. B. and Pilskaln, C. H., 2002. Distribution and transport of suspended particulate matter in Monterey California. Marine Geology, 181, pp.215-234.
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