利用HJ-1B星热红外遥感图像研究城市热岛效应

摘要

The paper researches a suitable temperature retrieval algorithm in accordance with HJ-1B thermal infrared data characteristics, and further analyzes Beijing heat island on the basis of land surface temperature iamge. Moreover, it explains the characteristics and possible causes of Beijing heat island. The results show that with the development of urbanization the Beijing heat island effect has become more serious, and the land surface temperature and NDVI are correlative. The land temperature retrieval algorithm of HJ-1B thermal infrared can be used for monitoring and analyzing the urban heat island effect.%文章针对中国HJ-1B（“环境一号”B）星热红外数据特点，以现有单通道地表温度反演算法为基础，开展HJ-1B星热红外数据的地表温度反演算法研究，并利用HJ—1B星热红外遥感温度图像研究北京热岛效应，对北京城区热岛在空间上的分布及其可能的成因作了相应分析。结果表明：随着城市化的发展，北京市热岛效应日益严重，地表温度分布与归一化植被指数（NDVI）相关性明显，文章得到的HJ-1B星热红外地表温度反演方法可以很好的用于城市热岛效应的监测分析。