Application of ASTER data to hazard evaluation with an example of damage evaluation of the landslide in Pakistan

摘要

For the effective evaluation of the hazard, the data should have been acquired before the hazard occurrence and should be quickly acquired after it. While there have been a lot of discussions on application of remote sensing data to hazard evaluation, there are few results on effective application of remote sensing data. To fulfill the first condition, it is necessary to have world coverage of data. For the second condition, flexible and timely data acquisition is mandatory. ASTER seems to fulfill the both conditions. In case of the giant landslide (Hattian slide) occurred in Pakistan on October 8, 2005, the data acquired before and just after the landslide are both available. And the damage was quantitatively evaluated by using DEM generated from ASTER stereo pairs obtained before and after it.