Applying Multi-source RS Data to Emergency RS Interpretation for Disaster Situation and Secondary Geologic Hazards of 5.12 Wenchuan Violent Earthquake

摘要

Remote Sensing Center of Sichuan Province (RSCSP)received an urgent task soon after the world-shocked earthquake occurred on 12th. May. 2008 (so called “5.12”earthquake), meanwhile the emergency working group of RS interpretation was founded by RSCSP and CDUT(Chengdu University of Technology). The main objective of this emergent RS interpretation group is to quickly provide the information of the earthquake disaster and the secondary geologic hazard situation. The first-hand information is immediately and accurately worked out and submitted to the site rescues, which is also very important and significant for making the further decisions of rescue actions and disaster relieves. The data also have scientific value for particular ground surveying of geologic hazards, and for regional security assessment to post-quake rebuilding. The Multi-source RS Data, which includes the data of Quick Bird, World View-1, Spot, Aster, CBERS, Fuwei-2 and the aerial photographs, are available for the interpreting project. More than five hundred interpretations of aerial photographs (the counterpart area: about 9, 000 km2)for the harder-hit regions were accomplished, and the interpretations of satellite images cover nine counties or cities in harder-hit areas (the counterpart area: about 20.800 km2). The RS interpretations play an important role in the rescue on site and disaster relief, and it reveals that RS application becomes dominant with the advantages of the extensive view, the abundant and real-time information, the quickness, the hi-efficiency and accuracy.