本文選題：城市熱島強度 + DTR��； 參考：《應用基礎與工程科學學報》2017年02期

【摘要】：城市熱島強度是城市熱島研究和應用中的一個重要度量指標,但其定量計算一直是一難點.由于中國城市發(fā)展基本現(xiàn)狀與氣象設施條件的制約,目前常用的基于氣象站的城鄉(xiāng)溫差計算法,較難準確客觀地計算中國城市的熱島強度.當前衛(wèi)星熱紅外數(shù)據(jù)反演的地表溫度已廣泛應用于城市熱島的研究中,因此,本文根據(jù)溫度日較差(DTR)變化趨勢分析,通過地表溫度遙感影像的剖面數(shù)據(jù),構(gòu)建了基于DTR的城市熱島強度指數(shù)(UHII_(DTR)),并將其應用于福州市1989~2013年間的城市熱島強度計算,以定量評價城市熱島強度變化情況.研究表明,新建立的UHII_(DTR)可以客觀、準確地反映出福州的城市熱島變化.福州市在1989~2013年間UHII_(DTR)逐漸下降,從1989年的5.22℃下降至2013年的3.01℃,城市熱島效應不斷加劇.從UHII_(DTR)的年際變化趨勢來看,福州未來的熱島現(xiàn)象仍將進一步加劇.
[Abstract]:The intensity of urban heat island is an important measure index in the research and application of urban heat island, but its quantitative calculation is always a difficulty. Due to the basic status of urban development in China and the restriction of meteorological facilities, it is difficult to calculate the heat island intensity of Chinese cities accurately and objectively by using the method of calculating the urban and rural temperature difference based on meteorological stations at present. At present, the surface temperature retrieved from satellite thermal infrared data has been widely used in the study of urban heat island. Therefore, according to the trend analysis of temperature diurnal temperature difference (DTR), the profile data of remote sensing image of surface temperature are analyzed in this paper. The urban heat island intensity index based on DTR is constructed and applied to the calculation of urban heat island intensity in Fuzhou from 1989 to 2013 in order to quantitatively evaluate the change of urban heat island intensity. The results show that the newly established UHII / DTR can objectively and accurately reflect the change of urban heat island in Fuzhou. From 1989 to 2013, the UHIID DTR decreased gradually, from 5.22 鈩，

本文編號：1902028