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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 游政谷(Cheng-Ku Yu) | |
| dc.contributor.author | Shih-Chieh Wang | en |
| dc.contributor.author | 王世傑 | zh_TW |
| dc.date.accessioned | 2021-06-17T03:45:32Z | - |
| dc.date.available | 2018-02-23 | |
| dc.date.copyright | 2018-02-23 | |
| dc.date.issued | 2018 | |
| dc.date.submitted | 2018-01-31 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/70137 | - |
| dc.description.abstract | 本研究利用氣象局與環保署地面觀測站氣象參數資料，針對台北盆地1999~2015年6~8月弱綜觀環境下之午後熱對流進行週間變化分析。結果顯示盆地內雨量站平均降雨強度的最大值發生在週三，次大值則發生在週五，而最小值則出現在週一或週六，而整體而言是週間的平均降雨強度大於週末的平均降雨強度，而雷達觀測分析也顯示出一致性的結果。
為了瞭解台北盆地降雨週間變化的可能原因，本研究也針對懸浮微粒與熱動力參數進行週間分析。結果顯示PM10與PM2.5具有明顯的週間變化，其平均粒子濃度最大值發生在週四或週三，最小值在週日，而週三具有最小的靜力穩定度與最大的對流不穩定度。然而，溫度、相對濕度、混合比、海風強度與垂直風切之週間變化不明顯。從這些分析結果隱含著懸浮微粒可能對於降雨週間變化較有貢獻。 另外，當不考量弱綜觀環境的天數進行雨量週間分析，發現到平均降雨強度就不存在週間變化，此一點確定了在弱綜觀環境下的午後熱對流才具有降雨週間變化。 | zh_TW |
| dc.description.abstract | The study utilizes Central Weather Bureau (CWB) surface observations and Environmental Protection Administration (EPA) observations hourly meteorological parameters to analyze weekly variations of precipitation associated with thunderstorms in the Taipei urban area between Jun. and Aug. of 1999-2015 during the weak synoptic forcing. The result indicates that the maximum of rainfall intensity is on Wednesday and secondary maximum of rainfall intensity is on Friday whereas the minimum of rainfall intensity is on Monday or Saturday. On the whole, the rainfall intensity is stronger on weekday than weekend. Moreover, the rainfall intensity derived from radar measurements also indicates consistent results.
To understand the causes of the weekly variations of precipitation associated with thunderstorms in the Taipei urban area, the study analyzes aerosols and thermodynamic and dynamic meteorological parameters. The weekly variations of PM10 and PM2.5 also exist. However, the largest concentrations of PM10 and PM2.5 are found on Thursday or Wednesday and the smallest concentrations are found on Sunday. The lowest static stability is found on Wednesday, but the highest convective instability is found on Wednesday. Nevertheless, the weekly variations of temperature, relative humidity, mixing ratio, sea breeze, vertical wind shear are not significant. Therefore, the result implies that aerosols have stronger impact on the weekly variation of rainfall than other meteorological parameters. Finally, the weekly variations disappear if analysis is performed for all days between Jun. and Aug. of 1999-2015. This result indicates that the weekly variation of precipitation associated with thunderstorms exists only during the weak synoptic forcing. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-17T03:45:32Z (GMT). No. of bitstreams: 1 ntu-107-R04229031-1.pdf: 24867830 bytes, checksum: 6da34dc7491a5b1de4d9814d6b07d0be (MD5) Previous issue date: 2018 | en |
| dc.description.tableofcontents | 口試委員會審定書…………………………………………………………I
致謝………………………………………………………………………..II 摘要………………………………………………………………………..V Abstract…………………………………………………………………...VI 目錄……………………………………………………………………...VII 圖表目錄………………………………………………………………...XII 第一章 前言……………………………………………………………….1 (一) 文獻回顧………………………………………………………...1 1. 非降雨氣象參數之週間變化………………………………....2 2. 降雨或者與降水相關氣象參數之週間變化…………………2 3. 降水之週間變化………………………....................................4 (二) 研究動機………………………………………………………...6 (三) 研究目的………………………………………………………...7 第二章 資料與分析時間與方法………………………………………….9 (一) 資料……………………………………………………………...9 1.資料來源………………………………………………………..9 2.五分山都卜勒雷達之特性與處理……………………………..9 3.中鼎公司(CTCI)土地利用型態資料介紹……………………10 4.閃電資料之特性與介紹………………………………………11 (1)觀測儀器說明……………………………………………11 (2)閃電類型介紹……………………………………………11 5.數值地形資料介紹與處理……………………………………12 (1)數值地形資料介紹………………………………………12 (2)數值地形資料的處理……………………………………12 (二) 研究天數之選取定義與原因………………………………….13 1.選取方法………………………………………………………13 2.選取原因………………………………………………………13 (三) 分析方法……………………………………………………….14 1.分析時間………………………………………………………14 2.分析空間………………………………………………………14 3.Z檢定………………………………………………………….14 4.t檢定…………………………………………………………...15 第三章 台北都會區綜觀環境特徵……………………………………...16 (一) 探空分析……………………………………………………….16 (二) 平均降雨強度在空間上分布………………………………….16 第四章 個別測站資料週間分析………………………………………...18 (一) 午後熱對流週間分析………………………………………….18 1.降雨強度………………………………………………………18 2.雷達回波………………………………………………………19 3.雷達回波透過Z-R關係式所得降雨強度……………………20 4.閃電……………………………………………………………20 (二) 懸浮粒子……………………………………………………….21 1.懸浮微粒(PM10)、細懸浮微粒(PM2.5)…………………………22 (1)排除掉降水對於PM10與PM2.5濃度的影響…………….23 (2)懸浮微粒濃度與降雨量的合成分析……………………24 (三) 熱力因子……………………………………………………….25 1.CAPE、CIN…………………………………………………….25 2.靜力穩定度、對流不穩定度…………………………………..26 3.溫度、相對濕度、混合比、水氣………………………………..27 (四) 動力因子……………………………………………………….28 1.垂直風切………………………………………………………28 2.海風……………………………………………………………28 (1)淡水河口海風、基隆河口海風…………………………..29 (2)海溫對於海風分量大小影響……………………………29 第五章 週間分析的統計檢定…………………………………………...30 (一) 週間與週末差異值統計檢定………………………………….30 (二) 其他天數差異值統計檢定…………………………………….31 第六章 雨量與其他參數空間上的相關性……………………………...33 (一)散佈圖迴歸分析………………………………………………...33 1.建築物百分比…………………………………………………33 2.懸浮粒子參數…………………………………………………33 3.熱力參數………………………………………………………33 (二)相關係數週間分析……………………………………………...34 第七章 結論與未來展望………………………………………………...36 (一) 結論…………………………………………………………….36 (二) 未來展望……………………………………………………….38 參考文獻………………………………………………………………….40 表目錄 表1 1999~2015 年夏季弱綜觀環境所有天數(總共773天)……....…..44 表2 1999~2015年夏季弱綜觀環境所有天數週日到週六個別天數列表…………………………………………………………………….50 表3 1999~2015年夏季不分強弱綜觀環境所有天數週日到週六個別天數列表……………………………………………………………….50 表4 台北市與新北市地區所有氣象局測站列表整理…………………51 表5 台北市與新北市地區所有環保署測站列表整理…………………55 表6 CAPE與CIN、靜力穩定度與對流不穩定度、垂直風切與海風分量統計檢定結果…………………………………………………….57 圖目錄 第二章圖片……………………………………………………………….58 第三章圖片……………………………………………………………….63 第四章圖片……………………………………………………………….72 第五章圖片……………………………………………………………...119 第六章圖片……………………………………………………………...127 | |
| dc.language.iso | zh-TW | |
| dc.subject | 都會區 | zh_TW |
| dc.subject | 週間變化 | zh_TW |
| dc.subject | 台北盆地 | zh_TW |
| dc.subject | 降雨強度 | zh_TW |
| dc.subject | 懸浮微粒 | zh_TW |
| dc.subject | 細懸浮微粒 | zh_TW |
| dc.subject | 五分山雷達 | zh_TW |
| dc.subject | 午後熱對流 | zh_TW |
| dc.subject | 弱綜觀環境 | zh_TW |
| dc.subject | Taipei basin | en |
| dc.subject | weak synoptic forcing | en |
| dc.subject | thunderstorm | en |
| dc.subject | RCWF | en |
| dc.subject | weekly variation | en |
| dc.subject | PM2.5 | en |
| dc.subject | urban area | en |
| dc.subject | PM10 | en |
| dc.subject | rainfall intensity | en |
| dc.title | 台北都會區午後雷陣雨週間變化 | zh_TW |
| dc.title | Weekly Variations of Summertime Thunderstorms in the Urban Area of Taipei | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 106-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 林傳堯(Chuan-Yao Lin),談珮華(Pei-Hua Tan),陳正平(Jen-Ping Chen) | |
| dc.subject.keyword | 週間變化,都會區,台北盆地,降雨強度,懸浮微粒,細懸浮微粒,五分山雷達,午後熱對流,弱綜觀環境, | zh_TW |
| dc.subject.keyword | weekly variation,urban area,Taipei basin,rainfall intensity,PM10,PM2.5,RCWF,thunderstorm,weak synoptic forcing, | en |
| dc.relation.page | 145 | |
| dc.identifier.doi | 10.6342/NTU201704227 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2018-01-31 | |
| 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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