地震次生地质灾害应急调查多源遥感影像处理及应用——以汶川大地震为例

Processing and Application of Multi-Source Remote Sensing Images for Emergency Investigation of Earthquake-Induced Geohazards——A Case Study on Wenchuan Earthquake

汶川大地震发生后,遥感技术即刻成为抢险救灾的重要信息来源,多源遥感影像的协同快速处理尤为关键。以国道213(映秀-汶川段)为例,探讨了研究区TM正射影像、DMC航空影像及QB影像三种数据的协同快速处理,处理后的影像色彩统一、色调一致,质量较好,能满足灾情应急调查使用。

Remote Sensing technology, especially collaborative fast processing of multi- source Remote Sensing images, was very important information resource for emergency rescue and disaster relief after the Wenchuan Earthquake. Collaborative fast processing of TM orthopotos, DMC aerial images and QB image data met the needs of emergency rescue and disaster relief in the Yingxiu-Wenchuan heavy disaster area.