利用TM合成图像研究滨海平原城市东营市的时空扩展

Study on Space-Time Expansion of Dongying City by Composing TM Pseudo-Color

利用遥感 (RS)与地理信息系统 (GIS)一体化技术 ,对黄河三角洲上的新兴城市——东营市的城市时空扩展进行动态监测。并在地物光谱研究的基础上 ,提出了适合于近海平原地区的遥感波段组合 (TM- R5 G3B1)和本区内最易于识别城镇、居民地的波段组合 TM- R5 G7B4 (7月 )、TM-R3G4 B2 (10月 )和 TM- R5 G2 B4 (5月 )。结果表明 ,东营市自 1983年建市以来 ,迅速向东发展 ,由一块城区扩展为东城、西城并立。国家的政策和规划、石油工业的发展是东营城区迅速扩展的驱动力。

Integrated RS and GIS technology is used to dynamically monitor the urban expansion process of Dongying City, which lies in the north of Shangdong Province. Based on the spectral response pattern, four wave band combinations are put forward, namely, TM R5G3B1, TM R5G7B4, TM R3G4B2 and TM R5G2B4. Among them, the combination TM R5G3B1 is suitable for the entire Yellow River Delta and the other three combinations are most suitable for the identification of urban and residential areas in July (TM-R5G7B4), October(TM-R3G4B2), May(TM-R5G2B4), respectively. Since set up in 1983, the Dongying City has developed rapidly from one urban area to two urban areas. The study reveals that the rapid urban expansion results from national policies and the development of petroleum industry.