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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 許武榮(Wu-Ron Hsu) | |
dc.contributor.author | Hsu-Feng Lo | en |
dc.contributor.author | 羅旭峰 | zh_TW |
dc.date.accessioned | 2021-06-13T00:43:44Z | - |
dc.date.available | 2008-07-27 | |
dc.date.copyright | 2007-07-27 | |
dc.date.issued | 2007 | |
dc.date.submitted | 2007-07-23 | |
dc.identifier.citation | 葉育成,1996 : 二維非靜力模式對山岳波之數值模擬。國立臺灣大學大氣科學研究所碩士論文。
戴志輝,1998 : 水氣對山岳波的影響。國立臺灣大學大氣科學研究所碩士論文。 侯昭平,2006 : 不均勻地表情況下淺對流的大渦流模擬研究。國立臺灣大學大氣科學研究所博士論文。 謝銘恩,2006 : 單調半拉格朗日平流格式在三維非靜力模式及在颮線模擬上的應用。國立臺灣大學大氣科學研究所博士論文。 Crowley, W. P., 1968 : Numerical advection experiments. Mon. Wea. Rev., 96, 1–11. Deardoff, J. W., 1980 : Stratocumulus-capped mixed layer derived from a three-dimensional model. Bound.-Layer Meteor., 18, 495-527. Droegemeier, K. K., and R. B. Wilhelmson, 1987 : Numerical simulation of thunderstorm outflow dynamics. Part I: Outflow sensitivity experiments and turbulence dynamics. J. Atmos. Sci., 44, 1180–1210. Durran, D. R., and J. B. Klemp, 1982a : The effects of moisture on trapped mountain lee waves. J. Atmos. Sci., 39, 2490-2506. ———, and ———, 1982b : On the effects of moisture on the Brunt-Väisälä frequency. J. Atmos. Sci., 39, 2152-2158. ¬———, and ———, 1983 : A compressible model for the simulation of moist mountain waves. Mon. Wea. Rev., 111, 2341-2361. Gadd, A. J., 1978a : A numerical advection scheme with small phase speed errors. Quart. J. Roy. Meteor. Soc., 104, 583-594. Hsie, E. Y., R. D. Farley, and H. D. Orville, 1980 : Numerical simulation of ice phase convective cloud seeding. J. Appl. Meteor., 19, 950–977. Hsu, W. R., and Sun, W. Y., 2001 : A time-split, forward-backward numerical model for solving a nonhydrostatic and compressible system of equations. Telus., 53A, 279-299. Lin, Y.-L., R. D. Farley, and H. D. Orville, 1983 : Bulk parameterization of the snow field in a cloud model. J. Climate Appl. Meteor., 22, 1065–1092. Oh, T.-J., 2003 : Numerical study of flow past an idealized bell shaped mountain with varying Froude number. A Thesis Submitted to the Faculty of Purdue University. Queney, P., 1948 : The problem of airflow over mountains : A summary of theoretical studies. Bull. Amer. Meteor. Soc., 29, 16-26. Rutledge, S. A., and P. V. Hobbs, 1983 : The mesoscale and microscale structure and organization of clouds and precipitation in midlatitude cyclones. VIII: A model for the “seeder-feeder” process in warm-frontal rainbands. J. Atmos. Sci., 40, 1185–1206. ———, and ———, 1984 : The mesoscale and microscale structure and organization of clouds and precipitation in midlatitude cyclones. XII: A diagnostic modeling study of precipitation and development in narrow cold-frontal rainbands. J. Atmos. Sci., 41, 2949–2972. Scorer, R. S., 1949 : Theory of waves in the lee of mountains. Quart. J. Roy. Meteor. Soc., 75, 41-56. Sheppard, P. A., 1956 : Airflow over mountains. Quart. J. Roy. Meteor. Soc., 82, 528-529. Smith, R. B., 1980 : Linear theory of stratified hydrostatic flow past an isolated mountain. Tellus, 32, 348–364. Smolarkiewicz, P. K., Rasmussen, R. M., and Clark, T. L., 1988 : On the dynamics of Hawaiian cloud bands: Island Forcing. J. Atmos. Sci., 45, 1872-1905. Smolarkiewicz, P. K., and Rotunno R., 1989 : Low Froude number flow past Three-dimensional obstacles. Part I: Baroclinically generated lee vortices. J. Atmos. Sci., 46, 115-1164. ———, and ———, 1990 : Low Froude number flow past Three-dimensional obstacles. Part II: Upwind flow reversal zone. J. Atmos. Sci., 47, 1498-1511. Sun, W. Y., J. D. Chern, C. C. Wu, and W. R. Hsu, 1991: Numerical simulation of mesoscale circulation in Taiwan and surrounding area. Mon. Wea. Rev., 119, 2558–2573. Sun, W. Y., 1993 : Numerical experiments for advection equation. J. Comput. Phys., 108, 264-271. Yang, X., 1993 : A nonhydrostatic model for simulation of airflow over mesoscale bell-shaped ridges. Boundary-layer Meteorol., 65, 401-424. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/29160 | - |
dc.description.abstract | 過去對於乾大氣的非靜力度與非線性對山岳波的影響有很多的討論,現在對於乾大氣山岳波的基本行為已有充分的認識。本研究考慮水氣對山岳波的影響,在受到地形影響激發雲之後,環境的大氣穩定度將因潛熱釋放而減小,此時所呈現的山岳波特性仍需進一步的探討。
本研究使用許武榮與商文義教授合作發展的三維非靜力模式,在考慮水氣過程的影響下,對山岳波的結構及發展作數值模擬。首先模擬在較低的大氣溫度結構下,水氣對山岳波的影響,由於水氣稀少,所以潮濕山岳波與乾山岳波的外型沒有顯著差異。將大氣溫度提高,水氣含量加大後,潮濕大氣的山岳波因為水氣達飽和、潛熱釋放的修正效果,使環境大氣穩定度降低,甚至造成條件不穩定,引發與山岳波型態不同的對流活動。 本研究也將環境穩定度設計為兩層,即底層未飽和具有較大的環境穩定度,高層則因水氣飽和而穩定度變小;當滿足Scorer (1949) 條件時,則會引起類似陷入山岳波的型態。這是因為雲區內外穩定度的不連續面,造成山岳波的反射現象,以致部份山岳波的能量沿著地表向下游傳遞。 本研究也進一步模擬類似台灣冬季的東北季風,探討對流不穩定對大氣環境山岳波及層雲發展的影響,其結果引起與山岳波型態完全不同的對流運動,最後層雲則會破碎成雲街;此現象與冷乾空氣經由大陸出海後,引發東海洋面上的對流性積雲群的現象相似。隨著地形增高,開始會有一些非線性效應,受到非線性作用擾動之後,在山頂有很強的非線性平流,此時所呈現的山岳波又會有不一樣的特性。 | zh_TW |
dc.description.abstract | Mountain waves are often generated when stably stratified air flows over a mountain ridge. Although mountain waves have been the subject of extensive study, but most previous theoretical work has neglected the effects of moisture on the dynamics of these waves. The primary impediment to the study of moist mountain waves is the complexity of the equations which govern moist flow.
A series of numerical simulation and analyses have been conducted using a nonhydrostatic three-dimensional numerical model to study moist mountain waves. An idealized bell shaped mountain is assumed on the domain with a uniform basic wind. The results show that the magitude and wavelength of the waves are changed with the presence of an initial cloud deck for the stable condition. In the case with unstable environmental condition, the cloud deck breaks into cloud streets as expected. | en |
dc.description.provenance | Made available in DSpace on 2021-06-13T00:43:44Z (GMT). No. of bitstreams: 1 ntu-96-R94229017-1.pdf: 5700971 bytes, checksum: b17374a2567a3cb6d341c522f51ccd46 (MD5) Previous issue date: 2007 | en |
dc.description.tableofcontents | 口試委員會審定書..………………………………………….….…...…..i
致謝…………………………………………………………..………......ii 中文摘要.…………………...…………………………..……………….iii 英文摘要………………………………………………………….……..iv 目錄…………………………………………………….....………….…..v 表錄………………………………………………………………..…....vii 圖錄………………………………..……………………………..….....viii 第一章 前言………………………..………………......…...………….1 1-1 研究背景…………………………………………...…………1 1-2 論文回顧…………………………………………………...…1 1-3 研究目的……………………………………………………...4 第二章 模式的數值方法…………………………..……. ……………6 2-1 模式簡介………………………………...……........…............6 2-2 模式座標系統…………………………………...…………....6 2-3 預報方程與診斷方程………………..……………………….7 2-4 準可壓縮條件..…………………………………………….....9 2-5 有限差分法...………………………..…..…………...….…..10 2-5-1 平流階段...……………………...………..……...….…11 2-5-2 高頻波動階段………………...………..…..…....….…11 2-5-3 擴散階段…………...………………..…………...……11 2-6 地表過程…………………………………………………….13 2-7 雲物理過程……………………………..…..……....…….....14 2-8 平行化運算………………………………..…..……....…….15 2-9 邊界條件………………………………..….………....……..15 第三章 水氣對山岳波的影響………………………………………..18 3-1 線性山岳波理論…………………………………………….18 3-2 未考慮水氣的線性山岳波………………………………….19 3-3 飽和情形下的線性山岳波……………………………….…21 3-4 水氣對山岳波的陷入效應………………………………….22 3-4-1 陷入山岳波的理論……………………………………22 3-4-2 陷入效應的模擬結果…………………………………24 3-5 對流不穩定大氣的影響…………………………………….25 3-5-1 對流不穩定的特性……………………………………26 3-5-2 模擬結果分析………………………………………....27 第四章 高地形對山岳波的影響……………………………………..30 4-1 非線性山岳波理論………………………………………….30 4-2 對流不穩定與高地形對山岳波的影響…………………….30 4-3 未考慮水氣的非線性山岳波……………………………….33 第五章 結論…………….…………………………………………… 35 參考文獻………………………………………………………….…….37 附表圖………………………………………………………….……….40 | |
dc.language.iso | zh-TW | |
dc.title | 三維潮濕山岳波的數值研究 | zh_TW |
dc.title | A numerical study of three-dimensional moist mountain waves | en |
dc.type | Thesis | |
dc.date.schoolyear | 95-2 | |
dc.description.degree | 碩士 | |
dc.contributor.coadvisor | 吳清吉(Ching-Chi Wu) | |
dc.contributor.oralexamcommittee | 柯文雄,林沛練,劉清煌 | |
dc.subject.keyword | 山岳波,雲街,數值研究, | zh_TW |
dc.subject.keyword | mountain waves,cloud streets,numerical simulation, | en |
dc.relation.page | 39 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2007-07-25 | |
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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