請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/73998
完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳正平(Jen-Ping Chen) | |
dc.contributor.author | Yun-Ya Chu | en |
dc.contributor.author | 朱韻雅 | zh_TW |
dc.date.accessioned | 2021-06-17T08:16:15Z | - |
dc.date.available | 2020-08-18 | |
dc.date.copyright | 2019-08-18 | |
dc.date.issued | 2019 | |
dc.date.submitted | 2019-08-14 | |
dc.identifier.citation | 刘梦娟與杨引明,2017:基于风廓线网的散度和涡度计算 [Calculation of Horizontal Divergence and Vorticity Using Wind Profiler Network.]。气象科技进展,7(1),27-32。doi:10.3969/j.issn.2095-1973.2017.01.004
周仲島、高聿正、修榮光、鍾吉俊、李宗融及郭鴻基,2016:臺北都會區豪雨型午後雷暴的觀測特徵與預報挑戰:2015年6月14日個案研究。大氣科學,44(1),57-82。 林熹閔與郭鴻基,1996:1994年南台灣夏季午後對流之研究。大氣科學,24(3-4),249-280。 張惠玲,1997:台灣地區午後對流降水之研究。國立中央大學大氣物理研究所碩士論文,120頁。 陳泰然、周鴻祺、張子琦及劉志信,2001:梅雨季台灣北部地區鋒面型與非鋒面型午後對流研究。大氣科學,29(1),37-52。 陳泰然、周鴻祺、廖珮娟及楊進賢,2009:暖季弱綜觀強迫下中北台灣午後對流的氣候特徵。大氣科學,37(2),155-194。 陳泰然、周鴻祺、廖珮娟及楊進賢,2010:暖季台灣中北部午後對流活躍度與發展速率探討。大氣科學,38(3),135-164。 陳泰然與張子琦,2002:梅雨季台灣中北部地區豪(大)雨之氣候特徵研究。大氣科學,30(2),171-185。 蔡清彥,1987:台灣北部地區局部環流之研究。大氣科學,15(2),179-198。 繆炯恩,2017:2015年6月14日臺北盆地劇烈午後雷暴個案之高解析度模擬研究。國立臺灣大學大氣科學研究所碩士論文。71頁。 Chen, T.-C., Yen, M.-C., Tsay, J.-D., Liao, C.-C., and Takle, E. S, 2014:Impact of Afternoon Thunderstorms on the Land–Sea Breeze in the Taipei Basin during Summer: An Experiment. Journal of Applied Meteorology and Climatology, 53(7), 1714-1738. doi:10.1175/JAMC-D-13-098.1 Chen, Y.-L., and Feng, J., 2001:Numerical Simulations of Airflow and Cloud Distributions over the Windward Side of the Island of Hawaii. Part I: The Effects of Trade Wind Inversion. Monthly Weather Review, 129(5), 1117-1134. doi:10.1175/1520-0493(2001)129<1117:NSOAAC>2.0.CO;2 Endlich, R. M., & Clark, J. R. (1963). Objective Computation of Some Meteorological Quantities. Journal of Applied Meteorology, 2(1), 66-81. doi:10.1175/1520-0450(1963)002<0066:OCOSMQ>2.0.CO;2 Houze, R. A., 1993:Cloud Dynamics: Academic Press. Howell, D. C., 2012:Statistical methods for psychology: Cengage Learning. Hunt, J. C. R., & Snyder, W. H., 1980:Experiments on stably and neutrally stratified flow over a model three-dimensional hill. Journal of Fluid Mechanics, 96(4), 671-704. doi:10.1017/S0022112080002303 Jou, B. J.-D., 1994:Mountain-Originated Mesoscale Precipitation System in Northern Taiwan: A Case Study 21 June 1991. [北臺灣地區地形引發之中尺度降水系統:一九九一年六月二十一日個案研究]. Terrestrial, Atmospheric and Oceanic Sciences, 5(2), 169-197. doi: 10.3319/TAO.1994.5.2.169(TAMEX) Kuo, K.-T., and Wu, C.-M., 2019:The Precipitation Hotspots of Afternoon Thunderstorms over the Taipei Basin: Idealized Numerical Simulations. Journal of the Meteorological Society of Japan. Ser. II, 97(2), 501-517. doi:10.2151/jmsj.2019-031 Lin, C.-Y., and Chen, C.-S., 2002:A study of orographic effects on mountain-generated precipitation systems under weak synoptic forcing. Meteorology and Atmospheric Physics, 81(1), 1-25. doi:10.1007/s007030200028 Lin, C.-Y., Chen, W.-C., Chang, P.-L., and Sheng, Y.-F., 2010:Impact of the Urban Heat Island Effect on Precipitation over a Complex Geographic Environment in Northern Taiwan. Journal of Applied Meteorology and Climatology, 50(2), 339-353. doi:10.1175/2010JAMC2504.1 Lin, P.-F., Chang, P.-L., Jou, B. J.-D., Wilson, J. W., and Roberts, R. D., 2011:Warm Season Afternoon Thunderstorm Characteristics under Weak Synoptic-Scale Forcing over Taiwan Island. Wea. Forecasting, 26(1), 44-60. doi:10.1175/2010waf2222386.1 Lin, P.-F., Chang, P.-L., Jou, B. J.-D., Wilson, J. W., & Roberts, R. D., 2012:Objective Prediction of Warm Season Afternoon Thunderstorms in Northern Taiwan Using a Fuzzy Logic Approach. Wea. Forecasting, 27(5), 1178-1197. doi:10.1175/waf-d-11-00105.1 Smolarkiewicz, P. K., & Rotunno, R., 1988:Low Froude Number Flow Past Three-Dimensional Obstacles. Part I: Baroclinically Generated Lee Vortices. Journal of the Atmospheric Sciences, 46(8), 1154-1164. doi:10.1175/1520-0469(1989)046<1154:LFNFPT>2.0.CO;2 Sun, W.-Y., & Chern, J., 1994:Numerical Experiments of Vortices in the Wakes of Large Idealized Mountains. Journal of the Atmospheric Sciences, 51(2), 191-209. doi:10.1175/1520-0469(1994)051<0191:NEOVIT>2.0.CO;2 Sun, W.-Y., Chern, J.-D., Wu, C.-C., and Hsu, W.-R., 1990:Numerical Simulation of Mesoscale Circulation in Taiwan and Surrounding Area. Monthly Weather Review, 119(11), 2558-2573. doi:10.1175/1520-0493(1991)119<2558:NSOMCI>2.0.CO;2 Tao, W.-K., Chen, J.-P., Li, Z., Wang, C., and Zhang, C., 2012:Impact of aerosols on convective clouds and precipitation. Reviews of Geophysics, 50(2). doi:10.1029/2011RG000369 Yang, Y., and Chen, Y.-L., 2003:Circulations and Rainfall on the Lee Side of the Island of Hawaii during HaRP. Monthly Weather Review, 131(10), 2525-2542. doi:10.1175/1520-0493(2003)131<2525:CAROTL>2.0.CO;2 Yang, Y., Chen, Y.-L., and Fujioka, F. M., 2008:Effects of Trade-Wind Strength and Direction on the Leeside Circulations and Rainfall of the Island of Hawaii. Monthly Weather Review, 136(12), 4799-4818. doi:10.1175/2008MWR2365.1 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/73998 | - |
dc.description.abstract | 本研究主要目標為發生在夏季弱綜觀環境下北台灣午後雷暴強降雨(時雨量大於40毫米)機制。有利於午後對流強降雨的因素分為熱力因子、與地形相關的動力因子、以及雲物理因子。觀測資料顯示,除了垂直累積可降水量(column-integrated precipitable water),個別的熱力指標無法顯著區分出強降雨與非強降雨事件的差異;許多午後對流具有良好的熱力條件,往往無法造成強降雨,顯示動力作用也是造成可午後雷暴強降雨的重要配合條件,尤其是在台灣地形作用下。由於地形、地表作用的因素,向岸風與上坡風提供對流發展的有利條件,而海陸溫差造成的海風是一個向岸風的來源;但海風為很常見的現象,不會是偶爾發生的午後雷暴強降雨的決定性條件。此研究調查綜觀尺度風場及其在台灣地形作用下所的氣流變化(如尾流現象),是否有加強或減弱向岸風的作用,以理想化數值模擬實驗分析綜觀尺度的風向、風速在台灣地形作用下對於午後對流降雨強度的影響。結果顯示地形作用下的綜觀尺度風速及風向是決定午後對流的位置及雨量強度的重要的因素。相關機制包括對流胞的平流、尾流渦漩、渦漩脫離等。 | zh_TW |
dc.description.abstract | This study focuses on the mechanisms of heavy rainfall (intensity > 40 mm h-1) from afternoon thunderstorm ATS) that occurred over northern Taiwan in summer under weak synoptic forcing. Conditions favorable to the occurrence of heavy-rain ATS (HATS) include thermodynamic factors, topography-related dynamic factors, and cloud physical factors. Analyses of observational data indicate that, except for the column-integrated precipitable water, individual thermodynamic indices cannot differentiate HATS from ATS of weaker rainfall intensities. Many ATSs occurred under favorable thermodynamic conditions but often cannot produce heavy rain. This indicates the potential role of dynamic forcing, especially under the influence of Taiwan’s topography, which may provide orographic lifting for the onshore wind against the Snow Mountain Range or Central Mountain Range. Sea breeze is thermodynamically forced onshore wind (caused by land-sea temperature contrast), but it is too common to account for the rare occurrence of HATS. So, this study investigates the role of onshore wind associated with meso-alpha-scale winds under the influence of topography, including the lee-side wake flow. By running the WRF idealized simulations with controlled meso-alpha-scale wind, it was found that the direction and speed of the meso-alpha wind against the Central Mountain Range have critical influence on the location and intensity of HATS. The involved mechanisms include the advection of the convective cells, the wake flow effect, and vortex shedding effect. | en |
dc.description.provenance | Made available in DSpace on 2021-06-17T08:16:15Z (GMT). No. of bitstreams: 1 ntu-108-R06229013-1.pdf: 17165100 bytes, checksum: 28332e6f3b86e5bc86cc54b62d49232f (MD5) Previous issue date: 2019 | en |
dc.description.tableofcontents | 口試委員會審定書 i
誌謝 ii 中文摘要 iii ABSTRACT iv CONTENTS v LIST OF TABLES vii LIST OF FIGURES viii Chapter 1 Introduction 1 Chapter 2 Data and Methodology 7 2.1 The Dataset 7 2.1.1 The Observational Dataset 7 2.1.2 Criteria for Selecting Cases 8 2.1.3 Criteria of Heavy and Non-Heavy Rainfall Events 8 2.2 The Thermodynamic Indices 8 2.3 The Dynamic and Topographic Indices 11 2.3.1 The Analysis Dataset 11 2.3.2 Domain Setting 12 2.3.3 The Definition of Onshore Wind 12 2.4 The Cloud Physics Indices 12 2.5 The Numerical Experiment Design 13 2.5.1 The Model Settings 13 2.5.2 The Idealized Experiment Design 13 Chapter 3 Results 16 3.1 Statistics of Heavy-rainfall Afternoon Thunderstorms 16 3.1.1 Regional Distribution in Northern Taiwan 16 3.1.2 Annual, Diurnal and Intensity Distribution 17 3.2 Decisive Factors of HATS 17 3.2.1 Analysis of Thermodynamic Conditions 17 3.2.2 Analysis of Dynamic and Topographic Conditions 19 .3.2.2.1 Surface Wind by Observation Data 19 .3.2.2.2 Analysis of Meso-Alpha Wind by FNL Data 21 .3.2.2.3 Analysis of Meso-Beta Wind with FNL Data 22 3.2.3 Analysis of Aerosol Conditions 23 3.3 Results of WRF Idealized Simulation 23 3.3.1 Results of WS run 24 .3.3.1.1 Rainfall distribution of WS run 24 .3.3.1.2 Rainfall statistics of WS run and the effect of advection 25 .3.3.1.3 The effect of Orographic lifting and leeside vortex 26 .3.3.1.4 Mechanisms double rainfall peaks 28 3.3.2 Results of WD run 29 .3.3.2.1 Rainfall distribution of WD run 30 .3.3.2.2 Rainfall statistics of WD run and the effect of advection 30 .3.3.2.3 The effect of leeside vortex 31 Chapter 4 Discussion and Conclusion 32 REFERENCE 38 TABLES 41 FIGURES 54 | |
dc.language.iso | en | |
dc.title | 北台灣午後對流的強降雨事件發展機制 | zh_TW |
dc.title | Mechanisms of Heavy Rainfall from Afternoon Thunderstorms in Northern Taiwan | en |
dc.type | Thesis | |
dc.date.schoolyear | 107-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 游政谷(Cheng-Ku Yu),楊明仁(Ming-Jen Yang),蘇世灝(Shih-Hao Su) | |
dc.subject.keyword | 午後對流,雷暴,強降雨,地形作用,理想化數值實驗, | zh_TW |
dc.subject.keyword | afternoon convection,thunderstorm,heavy rain,topography effect,idealized numerical simulation, | en |
dc.relation.page | 115 | |
dc.identifier.doi | 10.6342/NTU201903473 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2019-08-15 | |
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 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-108-1.pdf 目前未授權公開取用 | 16.76 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。