摘要
利用Landsat TM/ETM+数据进行南昌市地表温度反演,得出1989年和2000年2个时相的南昌市热岛强度等级分布特征,结合下垫面土地覆盖类型图,选取样区对比分析了地表温度空间分布.结果表明:南昌市存在比较明显的热岛效应,主城区的地表温度由城区中心向近郊、远郊逐渐降低,城市地表温度与下垫面的性质紧密相关.研究结果对于改善南昌城市生态环境、减缓城市热岛效应具有重要的参考价值.
The distribution characteristics of heat island intensity was obtained after surface temperature inversion through the use of Landsat TM/ETM ＋ data, then the contrast of surface temperature spatial distribution was ana- lyzed combined with the underlying surface land cover types in sample areas. The result indicates that there existed obvious heat island effect in Nanchang, and the surface temperature gradually decreased from city center to subur- ban. The surface temperature was closely related to the nature of the underlying surface. The research results have important reference value to improve ecological environment and slow down the heat island effect for Nanchang.
出处
《南京信息工程大学学报（自然科学版）》
CAS
2013年第4期326-330,共5页
Journal of Nanjing University of Information Science & Technology（Natural Science Edition）
基金
南京市留学回国人员择优资助项目(20100259)
江苏高校优势学科大气科学建设工程资助项目(PAPD)
关键词
城市热岛
地表温度
遥感
南昌市
urban heat island
surface temperature
remote sensing
Nanchang city
