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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 郭鴻基 | |
dc.contributor.author | Jia-Hong Wu | en |
dc.contributor.author | 吳嘉鴻 | zh_TW |
dc.date.accessioned | 2021-06-13T01:21:30Z | - |
dc.date.available | 2007-07-23 | |
dc.date.copyright | 2007-07-23 | |
dc.date.issued | 2007 | |
dc.date.submitted | 2007-07-18 | |
dc.identifier.citation | 謝建輝,2003:渦旋垂直偶合之動力研究。國立臺灣大學大氣科學研究所碩士論文,共52頁。
陳珮雯,2005:斜壓雙渦旋交互作用─颱風雙眼牆結構之行程。國立臺灣大學大氣科學研究所碩士論文,共106頁。 江豪章,2006:雙眼牆颱風之特性探討。國立臺灣大學大氣科學研究所碩士論文。 Allen, M. R., and W. J. Ingram, 2002: Constraints on future changes in climate and the hydrologic cycle. Nature, 419, 224–232. Bengtsson, L., M. Botzet, and M. Esch, 1996: Will greenhouse gasinduced warming over the next 50 years lead to higher frequency and greater intensity of hurricanes? Tellus, 48A, 57–73. DeMaria, M., and J. C. L. Chen, 1984: Comments on “A numerical study of the interactions between two tropical cyclones.” Mon. Wea. Rev.,112,1649-1645 _______, M., 1996: The effect of vertical shear on tropical cyclone intensity change. J. Atmos. Sci., 53, 2076-2087. Dodge, P., R. W.Burpee, and F. D. Marks Jr., 1999: The kinematic structure of a hurricane with see level pressure less than 900mb. Mon. Wea. Rev., 127,987-1004. Flierl G.., R.,1988: On the instability of Geostrophic vortices. J. Fluid Mech.,197,349-388. Frank, W. M., and E. A. Ritchie, 2001: Effects of vertical wind shear on the intensity and structure of numerically simulated hurricanes. Mon. Wea. Rev., 129, 2249-2269. Flatau, M., W. H. Schubert, and D. E. Steven, 1994: The role of baroclinic processes in tropical cyclone motion: The influence of vertical tilt. J. Atmos. Sci.,51,2589-2601. Hawkins, J. K., and M. Helveston, 2004: Tropical cyclone multiple eyewall characteristic. Preprints, 26th conference on hurricane and tropical meteorology, Miami,FL.,Amer.Meteor.Soc.,276-277. Jones, S., C., 1995: The evolution of vortices in vertical shear: initially barotropic vortices. Quart. J. Roy. Meteor. Soc., 121,821-851. Knutson T. R., and R. E. Tuleya, W. Shen, and I. Ginis, 2001: Impact of CO2-induced warming on hurricane intensities as simulated in a hurricanemodel with ocean coupling. J. Climate, 14, 2458–2468. _______, R. E. Tuleya, 2004: Impact of CO2-induced warming on simulated hurricane intensity and precipitation: sensitivity to the choice of climate model and convective parameterization. J. Climate,17,3477-3495. Kossin, J. P., W. H. Schubert, and M. T. Montgomery, 2000: Unstable interaction between a hurricane’s primary eyewall and secondary ring of enhanced vorticity. J. Atmos. Sci., 57, 3893-3917. Kuo, H.,-C., G.. T.-J. Chen, and C.-H Lin, 2000: Merger of tropical cyclones Zeb and Alex. Mon. Wea. Rev., 128, 2967-2975. ____, L.-Y Lin, C.-P. Chang, and R. T. Williams, 2004: The formation of concentric vorticity structure in typhoons. J. Atmos. Sci.,61,2722-2734. Masahito Oda, 2006: Interaction of an asymmetric double vortex and trochoidal motion of a tropical cyclone with the concentric eyewall structure. J. Atmos. Sci., 63, 1069-1081. Nolan, D. S., and M. T. Montgomery, and L. D. Grasso, 2001: The wavenumber-one instability and trochoidal motion of hurricane-like vortices. J. Atmos. Sci.,58,3243-3270. Reasor, P. D., and M. T. Montgomery, and L. D. Grasso, 2004: A new look at the problem of tropical cyclones in vertical shear flow: vortex resiliency. J. Atmos. Sci., 61, 3-22. Rozoff, C. M., W.H. Schubert, B. D. McNoldy, and J. P. Kossin, 2006: Rapid filamentation zones in intense tropical cyclones. J. Atmos. Sci., 62, 325-340 Schecter, D., A., and M. T. Montgomery, 2003: On the symmetrization rate of an intense geophysical vortex. Dyn. Atmospheres Oceans,37,55-88. Schubert, W. H., and J. J. Hack, 1982: Inertial stability and tropical cyclone development. J. Atmos. Sci.,39, 1687-1697. Shapiro, L. J., and M. T. Montgomery, 1993: A three-dimensional balance theory for rapidly rotating vortices. J. Atmos. Sci., 50, 3322-3335. Smith, R. K., and W. Ulrich, and G.. Sneddon, 2000: the dynamics of vortices in vertical shear flows. Q. J. R. Meteorol. Soc.,126, 1-19 Zehr, R. M., 2003: Environmental vertical wind shear with hurricane Bertha (1996).,18,345-356. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/29848 | - |
dc.description.abstract | 本研究以兩層淺水平衡動力模式的數值實驗,探討垂直風切環境流場對雙眼牆渦旋結構之影響,實驗中我們強調雙眼牆之(1)弱回波區(moat)寬度,(2)外圍渦度環寬度,(3)外圍渦度環強度,對渦旋抵抗垂直風切能力之影響。抵抗垂直風切能力以對照模組(半徑Rc=100km,強度Zc=1.8e-3s-1 )能呈現「傾斜-回復」之最大垂直風切值(Uc=11m/s)來判斷。模擬結果顯示雙眼牆渦旋強度與結構是影響渦旋抵抗垂直風切能力的重要因素,實驗結果:(1)雙眼牆颱風抵抗垂直風切之能力較非雙眼牆颱風弱,這是因為雙眼牆颱風外環之渦度提供額外水平之牽引力,使中心渦旋上下偶合減弱。(2)在雙眼牆颱風中,弱回波區與外圍渦度環寬度不變,因為外圍渦度環強度變強(由Zr=0.3e-3s-1增加至0.9e-3s-1),抵抗垂直風切的能力也會增強(VSmax = 7m/s增加至14m/s)。(3)當雙眼牆結構的正壓性減弱,也就是中心渦旋上、下層差異變大,渦旋抵抗垂直風切的能力也會減弱(VSmax = 8m/s漸弱至6m/s)。(4)固定外圍渦度環的環流值,當moat區寬度增加或外圍渦度環寬度增加時,則外圍渦度環強度會減弱,雙眼牆渦旋抵抗垂直風切的能力也會減弱。 | zh_TW |
dc.description.abstract | This study, with the aid of two-layer shallow water model, explore the vortex resiliency of concentric eyewall against vertical wind shear. In particular, we focus on (1)moat width ; (2)outer eyewall width ; and (3)intensity parameters on the vortex. The resiliency ability against the vertical wind shear is defined as a ratio in compare to the control run(radius=100km; intensity = Zc=1.8e-3s-1 ) which shows “tilt-align” in vertical structure when vertical wind shear reach the maximum(Uc=11m/s). The result shows both intensity and structure of concentric vortex are important factors for vortex resiliency against vertical wind shear. The numerical simulations indicate that: (1)vertical wind shear destroys the concentric eyewall structure in most of the cases simulated, (2)vortex resiliency of concentric eyewall vortex is weaker than the similar non-concentric eyewall counterpart, (3)vertical resiliency decreases with the increase of the baroclinicity of the concentric vortex, (4)vortex resiliency against vertical wind shear increases with the intensity of the core vortex, (5)other parameters being equal, the vortex resiliency increases with the increase of outer eyewall circulation, (6)other parameters being equal, the vortex resiliency decreases with the increase of outer eyewall width, and (7)other parameters being equal, the vortex resiliency decreases with the increase of moat width. | en |
dc.description.provenance | Made available in DSpace on 2021-06-13T01:21:30Z (GMT). No. of bitstreams: 1 ntu-96-R92229009-1.pdf: 13117715 bytes, checksum: fb92087af89970a2c06c2e2b26596e75 (MD5) Previous issue date: 2007 | en |
dc.description.tableofcontents | 目 錄
致謝………………………………………………………………………..Ⅰ 中文摘要…………………………………………………………………. Ⅱ 英文摘要…………………………………………………………………..Ⅲ 目錄……………………………………………………………………… .Ⅳ 圖表目錄………………………………………………………………… .Ⅵ 第一章 前言……………………………………………………………. 1 1.1 研究背景……………………………………………………….. 1 1.2 研究動機……………………………………………………….. 4 第二章 數值模式………………………………………………………. 6 2.1 模式介紹……………………………………………………….. 6 2.2 模式計算流程………………………………………………….. 7 2.3 模式設定……………………………………………………….. 8 2.4 模式特性說明………………… … …………………………… 9 2.4.1 兩層淺水模式動力機制………………………………... 9 2.4.2 雙眼牆渦旋穩定機制………………………… ……….. 9 2.4.3 模式測試………………………………………………...11 第三章 數值實驗與結果……………………………………………… 13 3.1 實驗設計………………………………………………………. 13 3.2 各參數條件對抵抗垂直風切能力之結果分析………………. 13 3.2.1 外眼牆寬度對抵抗垂直風切能力之影響……………...13 3.2.2 moat區寬度對抵抗垂直風切能力之影響…………... 14 3.2.3 外眼牆渦度對抵抗垂直風切能力之影響……………...15 3.2.4 颱風正壓性對抵抗垂直風切能力之影響……………...15 3.3 渦旋幾何結構對抵抗垂直風切能力之結果分析……………. 16 3.3.1 固定外圍渦度環環流值為 ……………………… 17 3.3.2 固定外圍渦度環環流值為 ……………………… 18 3.3.3 固定外圍渦度環環流值為 ………………………19 3.3.4 小結………………………………………………………20 第四章 結論與討論…………………………………………………… 22 4.1 結論……………………………………………………………. 22 4.2 未來展望………………………………………………………. 23 參考文獻………………………………………………………………… 25 附錄……………………………………………………………………… 57 | |
dc.language.iso | zh-TW | |
dc.title | 雙眼牆結構渦旋抗垂直風切能力探討 | zh_TW |
dc.title | Resiliency of Concentric Eyewall Vortex against Vertical Wind Shear | en |
dc.type | Thesis | |
dc.date.schoolyear | 95-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 吳俊傑,陳泰然,李清勝,周仲島 | |
dc.subject.keyword | 雙眼牆,垂直風切, | zh_TW |
dc.subject.keyword | concentric eyewall vortex,vertical wind shear, | en |
dc.relation.page | 96 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2007-07-18 | |
dc.contributor.author-college | 理學院 | zh_TW |
dc.contributor.author-dept | 大氣科學研究所 | zh_TW |
顯示於系所單位: | 大氣科學系 |
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