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本文概略介绍应用1984年10月3日、1987年9月26日、1989年10月17日和1992年10月25日4景TM数据,以北京城区及朝阳区851.5平方公里范围为试验区,通过图像应用处理,提取水体、绿地、热岛现象等环境要素变化信息,客观、准确地展示出北京市环境质量在加速改善的轨迹。表明卫星遥感在城市环境监测研究中有着令人鼓舞的应用前景。
This article briefly introduces the application of 4 scenes TM data on October 3, 1984, September 26, 1987, October 17, 1989 and October 25, 1992. Taking 851.5 square kilometers of Beijing urban area and Chaoyang District as experimental areas, Through the application of image processing, the changes of environmental factors such as water body, green land and heat island phenomenon are extracted to objectively and accurately demonstrate the trajectory of Beijing’s environmental quality improvement. It shows that satellite remote sensing has an encouraging application prospect in urban environmental monitoring research.