| 摘要: |
| 对重庆市内环区进行研究，以
2002年和2007年两景ETM+/TM 影像为
基础数据，反演提取归一化地表温度指数
(NDSTI)及改进归一化建筑指数(NDBI)。
研究结果较好地揭示了建设用地的NDBI与
NDSTI、热岛效应等级的空间分布相关性
规律；2002年重庆的内环城区强热岛效应显
著，范围广；2007年随着城市化扩张，老城
区强热岛效应降级消失，新城区强热岛效应
凸显、升级；两江、湖泊和山体植被是冷岛
区，对城市热岛效应起分隔、调节作用。 |
| 关键词: 改进NDBI指数 归一化地表温
度 城市热岛 重庆 |
| DOI：10.13791/j.cnki.hsfwest.20140309 |
| 分类号: |
| 基金项目:* 科技部“十二五” 国家科技支撑计划资助项目
（2013BAJ11B05） |
|
| Urban Heat Island Effect Distribution Based on Improved NDBI of Inner District in Chongqing |
|
YIN Yihua,TANG Mingfang
|
| Abstract: |
| In this paper,NDSTI and improved NDBI were derived from TM/ETM+ images of?
Chongqing’inner district in 2002 and 2007.The results can better reveal the correlation laws of?
spatial distribution among NDBI,NDSTI and the UHI effect level of construction land.There?
was significantly stronger and wide range of UHI effect in the inner district of Chongqing in?
2002.With the expansion of urbanization,strong UHI downgraded and disappeared in the?
old city,and appeared,strong upgraded in new city in 2007.Yangtze River,Jiangling River,?
lakes and mountain vegetation belongs to cold island area,playing in a role in separating and?
adjusting the UHI effect. |
| Key words: Improved NDBI NDSTI Urban Heat Island Chongqing |
