南昌市热岛效应研究及分析
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摘要
本文利用1989年和2004年南昌市Landsat影像数据,校正后运用监督分类方法,分别统计不同区域的热岛效应。运用ERDAS的空间建模模块得出1989年和2004年两个时相的南昌市热岛强度分布特征,对比分析南昌市的热岛效应强度和水体面积的关系。结果表明,南昌市存在明显的热岛效应,主城区的地表温度由城区中心向近郊、远郊逐渐降低,水体面积与热岛强度呈负相关。
Based on the Landsat image data of Nanchang City in 1989 and 2004, the heat island effect in different regions was calculated by using the supervised classification method after correction. By using the spatial modeling module of ERDAS, the distribution characteristics of heat island intensity in Nanchang in 1989 and 2004 were obtained, and the relationship between the intensity of heat island effect and the area of water body in Nanchang was compared and analyzed. The results show that there is obvious heat island effect in Nanchang City, the surface temperature of the main urban area decreases gradually from the center of the city to the suburb, and the water area is negatively correlated with the intensity of the heat island.
Based on the Landsat image data of Nanchang City in 1989 and 2004, the heat island effect in different regions was calculated by using the supervised classification method after correction. By using the spatial modeling module of ERDAS, the distribution characteristics of heat island intensity in Nanchang in 1989 and 2004 were obtained, and the relationship between the intensity of heat island effect and the area of water body in Nanchang was compared and analyzed. The results show that there is obvious heat island effect in Nanchang City, the surface temperature of the main urban area decreases gradually from the center of the city to the suburb, and the water area is negatively correlated with the intensity of the heat island.
引文
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2朱文娟.基于ETM+热红外波段的南京地区地表温度反演算法研究[D].南京:南京农业大学,2008.
3范鹏宇.基于热红外遥感影像的地表温度空间降尺度研究[D].福州:福建师范大学,2013.
4郑蕉,陈文波,乐新贵.基于LandsatETM+图像的南昌市地表温度反演与分析[J].江西农业大学学报,2007,(3):490-494.
5林江,陈松林.基于ETM+影像的厦门岛地表温度反演与热环境分析[A].福建省土地学会.福建省土地学会2012年年会论文集[C].福州:福建省土地学会,2012.7.
6郭振华.基于TM/ETM+数据的成都市城市热岛效应研究[D].成都:成都理工大学,2012.
7吴凡,景元书.基于LandsatTM/ETM+数据的南昌城市热岛效应研究[J].南京信息工程大学学报(自然科学版),2013,(4):326-330.
8王才军.基于RS的城市热岛效应研究[D].重庆:重庆师范大学,2006.
9赵红旭,范心沂.昆明市热岛效应卫星监测研究[J].国土资源遥感,1999,(4):29-32.
10我国主要城市热岛现象动态监测研究[M].北京:北京大学出版社,1991.
11黄妙芬,陈波,刘素红,等.基于TM的城市温度异常区分析[J].国土资源遥感,2007,73(3):23-27.
12田国良.热红外遥感[M].北京:电子工业出版社,2006.
13蒋文君,赵红梅,唐豪.鄱阳湖区地表干旱与城市表面热岛的关系研究[J].华中师范大学学报(自科版),2017,51(4):555-560.