不同遥感影像的城市热岛空间分布特征分析  

Study of evaluation method of city heat island spatial distribution

作　　者：龚珍[1,2] 董恒[2] 胡友健[1] 

机构地区：[1]中国地质大学,武汉430079 [2]武汉理工大学,武汉430079

出　　处：《测绘科学》2016年第4期93-96,共4页Science of Surveying and Mapping

基　　金：十二五国家科技支撑计划项目(2012BAJ11B00);国家自然科学基金青年项目(41301588);湖北省自然科学基金项目(2014CFB858);中央高校基本科研业务费专项(2014-IV-075)

摘　　要：针对传统的地面观测方式很难全面掌握城市地面热岛的空间分布情况的问题,该文将HJ-1B卫星热红外图像代表的亮温图和采用HJ-1B卫星反演的温度图像正规化,利用量化等级体系对同一地区的亮温分布图和温度分布图进行划分,提出并采用间隙度指数对不同影像的高温区进行空间分布进行评价。实验结果表明:基于热红外影像的城市热岛空间分布比基于热红外影像反演的温度图的热岛空间分布更为集中,为研究不同影像之间的城市热岛空间分布提供了一种评价方法。Urban heat island effect is the most representative regional ecological problem of fast city construc- tion. because the city heat island spatial distribution changes with time, how to quantitatively express this change is one of the important work of the city heat island effect. Distribution of heat island spatial differences in comparing different image is worth to study. This paper represented the HJ-1B satellite thermal infrared images of the bright temperature and temperature images using HJ-1B satellite retrievals of regularization, the brightness tempera- ture distribution maps and temperature distribution of the division of the same area using quantitative grad- ing system was put forward, and the gap index of different images of high temperature area was adopted to evaluate spatial distribution, the experiment results showed that the spatial distribution of heat island temperature distribution of city heat island map based on space based thermal infrared imaging in the ther- mal infrared image retrieval was more concentrated, which provided an evaluation method for the research of city heat island spatial distribution between different images.

关 键 词：热岛 热红外影像 正规化 间隙度 

分 类 号：P23[天文地球—摄影测量与遥感]