基于遥感的南宁城市热岛效应时空演变分析  

Spatio-temporal evolution of urban heat island effect in Nanning based on remote sensing

作　　者：叶骏菲 文秀 林奕桐 廖国莲[3] Ye Junfeil;Wen Xiu;Lin Yitong;Liao Guolian(Nanning Yongning Meteorological Bureau, Nanning Guangxi 530200;Nanning Meteorological Bureau, Nanning Guangxi 530022;Guangxi Meteorological Observatory, Nanning Guangxi 530022)

机构地区：[1]南宁市邕宁区气象局,广西南宁530200 [2]南宁市气象局,广西南宁530022 [3]广西区气象台,广西南宁530022

出　　处：《气象研究与应用》2018年第1期55-58,共4页Journal of Meteorological Research and Application

基　　金：国家自然科学基金项目(41575051);广西科技计划项目(挂科AB16380292);广西气象科研计划项目(桂气科2016M02)共同资助

摘　　要：利用MODIS、TIRS等遥感数据对南宁市2013年四季及昼夜的地表温度、热场强度和热岛强度分别进行计算,研究南宁城市热岛的水平空间分布、四季演变及昼夜变化特征。结果表明:南宁市的热岛中心主要集中在西乡塘区及江南区,有大面积植被覆盖的兴宁区、良庆区及青秀区热岛相对较弱;白天高温区域分散于城市的南北两侧,夜晚集中于市中心,白天热岛强度明显大于晚上;夏季热岛强度最强,冬季热岛强度最弱。This paper used remote sensing data such as MODIS and TIRS to calculate the earth surface temperature, heat field intensity, and heat island intensity in the four seasons and the day and night of Nanning city in 2013, respectively, and studied the spatial distribution, the evolution of the four seasons,and changes in day and night of Nanning urban heat island. The results showed that the central heat island center of Nanning is mainly concentrated in Xixiangtang and Jiangnan areas, while in areas with large vegetation covered, such as Xingning, Liangqing, and Qingxiu District, the heat island were relatively weak. The high temperature areas in the daytime were scattered on the north and south sides of the city, while at night, city center had a high temperature. The intensity of heat island during the daytime was much greater than which in the evening, and in summer, the intensity of the heat island was strongest while in winter the heat island was the weakest.

关 键 词：遥感 热岛效应 热场强度 热岛强度 

分 类 号：P407[天文地球—大气科学及气象学]