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Integrating RS technology into a
GIS-based earthquake prevention
and disaster reduction system for earthquake damage evaluation
Li Ping 1and Tao Xiaxin 1,2
1. School of Civil Engineering, Harbin Institute of Technology,
Harbin 150090, China
2. Institute of Engineering Mechanics, China Earthquake Administration,
Harbin 150080, China
Abstract: This paper presents a method to integrate remote
sensing (RS) data processing, generation of isoseismal lines and
human-computer interaction modules into an improved GIS-based disaster
reduction system. Using the RS data processing module, a statistical
sample gray value and the RS-intensity at each field survey point in the
region are calculated from the probabilistic relationship between the
RS-variable and earthquake intensity, and stored in the GIS-based system
database. Then, isoseismal lines are generated by a trend surface model
from RS-intensity. They are further improved via modification of the
isoseismal lines based on the empirical attenuation relationship
calculated by using the RS-variable in the human-computer interaction
module. The field survey shows that the proposed method gives a good
generation of isoseismic lines. As a result, the accuracy of the damage
and loss evaluation and the efficiency of the emergency decision making
capability are improved.
Keywords: GIS; image processing; RS-variable; isoseismal lines;
trend surface; CoKriging
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