DMC卫星影像在海啸灾情土地覆盖类型变化分析中的应用

Investigation on land cover change after tsunami:based on DMC images

利用DMC卫星影像,对在2004年12月26日发生在印度洋海啸中,受灾严重的印度尼西亚亚齐特别自治区进行土地覆盖类型变化比较分析,科学客观的对灾情进行评估,从而阐述了DMC卫星影像在灾情分析及土地覆盖类型监测等方面的应用前景。

Tsunami giant waves,on December 26, 2004, crashed into Indonesia,Sri Lanka, India and many southern Asia countries, which caused loss of life, widespread human suffering and huge economic losses. The management of this devastation urged people to reconsider their public security system. An agreement has been researched that timely images of disasterstricken areas are of great value in emergency administration. In such context, Disaster Monitoring Constellation (DMC) has become a desirable means of information collection: its daily imaging revisit capability made it possible to obtain local images, when the calamity occurs. In this paper, a brief disaster assessment is made based on the comparison between land covers in Aceh province before and after the tsunami. The results indicate that the DMC images have great potential in related applications.