臺灣博碩士論文加值系統

本研究利用2012年2014年的衛星測高儀資料以及中尺度渦漩軌跡資料(Mesoscale Eddy Trajectory Atlas)，探討臺灣東部海域黑潮與中尺度渦漩之間的交互作用。衛星測高導出的流速先與都卜勒流剖儀(Acoustic Doppler Current Profiler, ADCP)量測的流速比較，以驗證衛星測高儀導出流速的可信度。本研究範圍介於北緯21.5°至25.5°，東經120°至124.5°之間，首先利用衛星測高儀的流速資料定義出黑潮主軸位置(該緯度流速最快的經度)，以及黑潮東部邊界(該緯度流速等於0.2 m/s的經度)，再依據中尺度渦漩軌跡資料找出由東向西進入黑潮流域的中尺度渦漩，共17個。一般而言，冷渦會使黑潮流速減弱，而暖渦會使黑潮流速增強，然數據顯示其中有4個渦漩進入黑潮不到10天就消失了，且未對黑潮流速有影響。進一步分析其餘13個渦漩與黑潮的交互作用，計算渦漩碰到黑潮時，黑潮在該緯度的平均動能(Kuroshio Kinetic Energy, KKE)以及渦漩平均動能(Eddy Kinetic Energy, EKE)的關係。研究分析結果顯示，其關係基本上可分成三種現象。一、當渦漩進入黑潮1個月內即被黑潮吸收，此時KKE遠大於EKE；二、渦漩進入黑潮2個月至3個月才被吸收，此時KKE略大於EKE；三、渦漩在黑潮東部邊界碰撞擺盪，最後整個渦漩並未進入黑潮範圍，此時KKE略等於EKE。

In this study, three years (2012-2014) satellite altimeter data and AVISO Mesoscale Eddy Trajectory Atlas were used to explore the interaction of Kuroshio and mesoscale eddy east of Taiwan. First, we compare the sea surface velocity derived from satellite altimeter data with that derived from the Doppler Current Profiler (ADCP) to verify the reliability of the current speed. The study area is ranged from 21.5°N to 25.5°N and from 120°E to 124.5°E. The position of the Kuroshio main axis is defined as the longitude where the fastest flow speed at the same latitude and the eastern boundary of the Kuroshio is defined as the longitude where the flow speed is equal to 0.2 m/s at the same latitude. According to the mesoscale eddy trajectory data, a total of 17 mesoscale eddies were found from the east to the west into the Kuroshio. Generally, the cold eddy may weaken the Kuroshio flow velocity, and the warm eddy may increase the Kuroshio flow velocity. However, the data shows that four of them into the Kuroshio for less than 10 days have no effect on the Kuroshio velocity. Further analyze the interaction between the Kuroshio and the eddy, and calculate the relationship between the Kuroshio Kinetic Energy (KKE) and the Eddy Kinetic Energy (EKE) when the eddy impacted the Kuroshio. The results show that the relationship can be divided into three phenomena. First, when the eddy impacted the Kuroshio about one month and then was absorbed by the Kuroshio, KKE is much larger than EKE. Second, when the eddy impacted Kuroshio for 2-3 months before being absorbed, KKE is slightly larger than EKE. Third, when the eddy oscillated at the eastern boundary of the Kuroshio but finally didn’t enter the Kuroshio range, KKE was almost equal to EKE.

第一章 緒論 1
1.1 前言與文獻回顧 1
1.2 研究目的與動機 3
第二章 研究資料 4
2.1 衛星觀測資料 4
2.2 實測資料 6
2.2.1 都卜勒流剖儀 6
第三章 研究方法與過程 8
3.1 ADCP與測高儀流速之比較 8
3.2 黑潮邊界的判定 8
3.3 冷渦及暖渦碰到黑潮的判定 9
3.4 渦漩動能(Eddy Kinetic Energy, EKE) 9
3.5 黑潮動能(Kuroshio Kinetic Energy, KKE) 9
第四章 結果與討論 10
4.1 渦漩軌跡 10
4.2 渦漩進入黑潮 10
4.3 渦漩與黑潮交互作用 11
第五章 總結與未來展望 15
5.1 總結 15
5.2 未來展望 16
參考文獻 17

Aviso Altimetry (2016). SSALTO/DUACS User Handbook: (M)SLA and (M)ADT Near-Real Time and Delayed Time Products. Retrieved August 20, 2016, from http://www.altimetry.info/webs-documents/msla-and-madt-near-real-time-and-delayed-time-products/.
Aviso Altimetry (2017). Aviso Users Newsletter #14. Retrieved December, 2017, from https://www.aviso.altimetry.fr/en/data/products/value-added-products/global-mesoscale-eddy-trajectory-product.html.
Aviso Altimetry (2017). Mesoscale Eddy Trajectory Atlas Product Handbook. Retrieved June 6, 2017, from https://www.aviso.altimetry.fr/en/data/products/value-added-products/global-mesoscale-eddy-trajectory-product.html.
Chang, M. H., S. Jan, V. Mensah, M. Andres, L. Rainville, Y. J. Yang and Y. H. Cheng (2018). Zonal migration and transport variations of the Kuroshio east of Taiwan induced by eddy impingements, Deep Sea Research Part I: Oceanographic Research Papers, 131, 1-15, doi:10.1016/j.dsr.2017.11.006.
Chang, Y., Y. Miyazawa and X Guo. (2015). Effects of the STCC eddies on the Kuroshio based on the 20-year JCOPE2 reanalysis results, Progress in Oceanography, 135, 64–76, doi:10.1016/j.pocean.2015.04.006.
Cheng, Y. H., C. R. Ho, Q. Zheng and N. J. Kuo (2014). Statistical Characteristics of Mesoscale Eddies in the North Pacific Derived from Satellite Altimetry, Remote Sensing, 6(6), 5164-5183, doi:10.3390/rs6065164.
Chern, C. S. and J. Wang (2005). Interactions of Mesoscale Eddy and Western Boundary Current: A Reduced-Gravity Numerical Model Study, Journal of Oceanography, 61(2), 271-282.
Hsin, Y.-C., Qiu, B., Chiang, T.-L., Wu, C.-R. (2013). Seasonal to Interannual Variations in the Intensity and Central Position of the Surface Kuroshio East of Taiwan, Journal of Geophysical Research: Oceans, 118(9), 4305–4316, doi:10.1002/jgrc.20323.
Hsu, An-Ke (2014). A Study on the Kuroshio east of Taiwan using short-term field survey data. PhD dissertation. Department of Marine Environmental Informatics, National Taiwan Ocean University, Taiwan.
Hsu, P. C., C. C. Lin, S. J. Huang, and R. H. Chung (2016). Effects of cold eddy on Kuroshio meander and its surface properties, east of Taiwan, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 9(11), 5055-5063, doi:10.1109/JSTARS.2016.2524698.
Hsu, P. C., M. H. Chang, C. C. Lin, S. J. Huang and C. R. Ho (2017). Investigation of the island-induced ocean eddy train of the Kuroshio Current using satellite imagery, Remote Sensing of Environment, 193, 54-64, doi:10.1016/j.rse.2017.02.025.
Jan, S., Y. J. Yang, J. Wang, V. Mensah, T.‐H. Kuo, M.‐D. Chiou, C.‐S. Chern, M.‐H. Chang, and H. Chien (2015). Large variability of the Kuroshio at 23.75°N east of Taiwan, Journal of Geophysical Research: Oceans, 120(3), 1825–1840, doi:10.1002/2014JC010614.
Jan, S., V. Mensah, M. Andres, M. H. Chang and Y. J, Yang (2017). Eddy‐Kuroshio Interactions: Local and Remote Effects, Journal of Geophysical Research: Oceans, 122(12), doi: 10.1002/2017JC013476.
Johns, W. E., T. N. Lee, D. Zhang, R. Zantopp, C.-T. Liu and Y. Yang (2001). The Kuroshio east of Taiwan: moored transport observations from the WOCE PCM-1 array, Journal of Physical Oceanography, 31, 1031–1053, doi:10.1175/1520-0485(2001)031<1031:TKEOTM>2.0.CO;2.
Liang, W.‐D., T. Y. Tang, Y. J. Yang, M. T. Ko, and W.‐S. Chuang (2003). Upper‐ocean currents around Taiwan, Deep Sea Res., Part II, 50, 1085–1105, doi:10.1016/S0967-0645(03)00011-0.
Lien R. C., M. Barry, Y. H. Cheng, C. R. Ho, B. Qiu, C. M. Lee, M. H. Chang (2014). Modulation of kuroshio transport by mesoscale eddies at the luzon strait entrance, Journal of Geophysical Research: Oceans, 119(4), 2129–2142, doi:10.1002/2013JC009548.
McGillicuddy, D. J., L. A. Anderson, N. R. Bates, N. R. Bates, T. Bibby, K. O. Buesseler, C. A. Carlson, C. S. Davis, C. Ewart, P. G. Falkowski, S. A. Goldthwait, D. A. Hansell, W. J. Jenkins, R. Johnson, V. K. Kosnyrev, J. R. Ledwell, Q. P. Li, D. A. Siegel and D. K. Steinberg (2007). Eddy/wind interactions stimulate extraordinary mid-ocean plankton blooms, Science, 316(5827), 1021–1026, doi:10.1126/science.1136256.
Schlax, M. G. and D. B. Chelton (2016). The “Growing Method” of Eddy Identification and Tracking in Two and Three Dimensions, College of Earth, Ocean and Atmospheric Sciences, Oregon State University, Corvallis, Oregon, July 8, 2016.
Qiu, B. (1999). Seasonal Eddy Field Modulation of the North Pacific Subtropical Countercurrent: TOPEX/Poseidon Observations and Theory, Journal of Physical Oceanography, 29(10), 2471-2486, doi: 10.1175/1520-0485(1999)029<2471:SEFMOT>2.0.CO;2.
Qiu, B., and S. Chen (2010). Interannual variability of the North Pacific Subtropical Countercurrent and its associated mesoscale eddy field, Journal of Physical Oceanography, 40, 213-225, doi:10.1175/2009JPO4285.1.
Roemmich, D., and J. Gilson (2001). Eddy transport of heat and thermocline waters in the North Pacific: A key to interannual/decadal climate variability? Journal of Physical Oceanography, 31, 675–687, doi: 10.1175/1520-0485(2001)031<0675:ETOHAT>2.0.CO;2.
Tang, T. Y., J. H. Tai and Y. J. Yang (2000). The flow pattern north of Taiwan and migration of the Kuroshio, Continental Shelf Research, 20, 349–371, doi: 10.1016/S0278-4343(99)00076-X.
Tsai, C.-J., M. Andres, S. Jan, V. Mensah, T. B. Sanford, R.-C. Lien, and C. Lee (2015). Eddy-Kuroshio interaction processes revealed by mooring observations off Taiwan and Luzon, Geophysical Research Letters, 42(19), doi:10.1002/2015GL065814.
Yan, X. M., X. H. Zhu, C. G. Pang and L. Zhang (2016). Effects of mesoscale eddies on the volume transport and branch pattern of the Kuroshio east of Taiwan, Journal of Geophysical Research: Oceans, 121(10), 7683–7700, doi: 10.1002/2016JC012038.
Yang, Y., C.-T. Liu, J.-H. Hu and M. Koga (1999). Taiwan Current (Kuroshio) and impinging eddies. Journal of Oceanography, 55(5), 609–617, doi: 10.1023/A:1007892819134.
Yang, Y., S. Jan, M. H. Chang, J. Wang, V. Mensah, T. H. Kuo, C. J. Tsai, C. Y. Lee, M. Andres, L. R. Centurioni, Y. H. Tseng, W. D. Liang and J. W. Lai (2015a). Mean structure and fluctuations of the Kuroshio east of Taiwan from in situ and remote observations, Oceanography, 28(4), 74–83, doi:10.5670/oceanog.2015.83.
Yang, K. C., J. Wang, C. M. Lee, B. Ma, R. C. Lien, Sen Jan, Y. J. Yang and M. H. Chang (2015b). Two Mechanisms Cause Dual Velocity Maxima in the Kuroshio East of Taiwan, Oceanography, 28(4), 64-73.
Yang, Y., X. S. Liang, B. Qiu and S. M. Chen (2017). On the Decadal Variability of the Eddy Kinetic Energy in the Kuroshio Extension, Journal of Physical Oceanography, 47(5), 1169–1187, doi: 10.1175/JPO-D-16-0201.1.
Yu, Sin-Huei (2014). Observations of current and hydrography field in the central South China Sea. Department of Marine Environmental Informatics, National Taiwan Ocean University, Taiwan.
Yuan, D., W. Han and D. Hu (2006). Surface Kuroshio path in the Luzon Strait area derived from satellite remote sensing data, Journal of Geophysical Research, 111(C11), doi:10.1029/2005JC003412.
Zhang, Z. G., Y. Zhang, W. Wang and R. X. Huang (2013). Universal structure of mesoscale eddies in the ocean, Geophysical Research Letters, 40(14), 3677–3681, doi:10.1002/grl.50736.
Zheng, Q., H. Lin, J. Meng, X. Hu, Y. Tony Song, Y. Zhang and C. Li (2008). Sub-mesoscale ocean eddy trains in the Luzon Strait, Journal of Geophysical Research, 113(C04), doi:10.1029/2007JC004362.