The methodology for assessing the vegetation damaged by the Wenchuan earthquake by using the technologies of remote sensing and GIS was discussed in Dujiangyan city of Sichuan Province, China. The model of extracting vegetation from CBERS images was formulated using the differentiation knowledge...

From a disaster relief perspective, an immediate and efficient rescue operation after an earthquake can greatly increase the number of survivors. An effective rescue operation depends on two key elements: localisation of the affected areas and estimation of the number of casualties in these...