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 reached 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 was made

based on the comparison between land covers in Aceh province

before and after the tsunami. The results of this study indicate that the DMC images have great potential in related applications.