博碩士論文 996203007 完整後設資料紀錄

DC 欄位 語言
DC.contributor太空科學研究所zh_TW
DC.creator嚴綾zh_TW
DC.creatorLing Yenen_US
dc.date.accessioned2012-8-30T07:39:07Z
dc.date.available2012-8-30T07:39:07Z
dc.date.issued2012
dc.identifier.urihttp://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=996203007
dc.contributor.department太空科學研究所zh_TW
DC.description國立中央大學zh_TW
DC.descriptionNational Central Universityen_US
dc.description.abstract隨著經濟發展,工商業發達,人口大量湧入都會地區,致使都市地區 相關的硬體建設迅速發展。都會區蓬勃發展的同時,將使地表結構從原本 的自然植被,逐漸被人工鋪面取代,造成都市地區氣溫失去平衡,溫度不 斷升高,導致都市溫度高於郊區的現象,形成所謂的都市熱島效應,影響 都市環境品質。隨著空間資訊與技術的進步,衛星遙測具有高光譜、多尺 度、多時序與資料獲取快速等優點,故本研究應用衛星資料探討大台北地 區都市熱島效應時空分布之特性。 本文利用1990 年至2009 年Landsat 衛星影像,以大台北地區為研究 試區,藉由多光譜資訊所計算亮度溫度與植生指數(Normalized Difference Vegetation Index; NDVI),分析大台北地區都市熱島強度(Urban Heat Island; UHI)之時空分布特性;另一方面,亦透過衛星資料在地物分類之結果,將 地表覆蓋物分為建地、水體以及植被等三種,分析不同地物種類與熱島效 應分布情形;最後則利用地表分類結果估算研究試區中的人工鋪面比例 (Impervious Surface Area; ISA),並透過探討ISA 與熱島效應之關係,分析都 市發展與都市熱島之互耦現象 研究結果顯示,北台灣地區夏季熱島效應較其他季節明顯,大台北地 區熱島強度平均可高達6℃,都會中心的溫度明顯高於鄉村地區。若比較 1990 年與2009 年大台北地區地表覆蓋物,且人工鋪面比例(ISA)與都市熱 島效應有明顯的正向關係,人工鋪面的增加(ΔISA)與熱島強度(UHI)之關係 呈指數型態增加,而人工鋪面比例越大的地區都市熱島強度的增幅也越 大。 zh_TW
dc.description.abstractAlong with the urban development, urban heat island(UHI) effect has become more serious over Greater Taipei Region(GTR). The enhancement of UHI effect is mainly due to the increase in the area of artificial impervious surfaces, and will make the impact on the changes of climate as well as the regional precipitation. Therefore, it’s important to monitor the phenomenon of UHI for the metropolis. With the development of spatial information technology, the remote sensing has advantages of high spectral rate, multi-scale images, multi-temporal and fast data acquisition. The application of remote sensing has been focused on urban heat island study nowadays. In present research, the UHI effect was investigated by means of remote sensing over GTR. The observation from Landsat TM/ETM sensors during 1990 to 2009 were used to analyze the spatiotemporal characteristics of UHI effect for the specific areas. The retrievals of brightness temperature, Normalized Difference Vegetable Index(NDVI), land cover type and impervious surface area(ISA) from TM/ETM data were examined the correlation to the intensity of UHI. The result indicated that the UHI effect is more severer in summer than the other seasons(spring and winter) in north Taiwan. The intensity of UHI can be more than 6℃ in summer. For the effect of land cover type on UHI intensity, the urban area type can be about 4℃. The results also indicate that the UHI intensity increased along with the urban development during the past 20 years. By comparing the land cover and land use changes between 1990 and 2009, about 11% vegetative area was replaced by the impervious surface over GTR. In addition, the results showed the good exponential relationship between ΔISA and ΔUHI, implying that the UHI will be magnified in the areas with large ISA value efficiently, such as the center of megalopolis. en_US
DC.subject植生指數zh_TW
DC.subject衛星遙測zh_TW
DC.subject熱島效應zh_TW
DC.subject亮度溫度zh_TW
DC.subject人工鋪面zh_TW
DC.subjectRemote Sensingen_US
DC.subjectNDVIen_US
DC.subjectUrban Heat Islanden_US
DC.subjectImpervious Surface Area.en_US
DC.subjectBrightness Temperatureen_US
DC.title應用衛星資料探討大台北地區都市熱島效應之時空分布zh_TW
dc.language.isozh-TWzh-TW
DC.titleInvestigation of the Relationship between Urban Heat Island and ISA by using Landsat7 ETM+ over Taipei Areaen_US
DC.type博碩士論文zh_TW
DC.typethesisen_US
DC.publisherNational Central Universityen_US

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