|Table of Contents|

Application of artificial intelligence expanging GIS to the environmental cumulative impact assessment for regional development(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2005年第01期
Page:
76-79
Research Field:
Publishing date:

Info

Title:
Application of artificial intelligence expanging GIS to the environmental cumulative impact assessment for regional development
Author(s):
LIU Shao-jun1; 2; HE Zheng-w ei1; 2; HUANG Run-qiu1; XU Qiang 1
1. School of Geological Engineering and Surveying Engineering, Chang’ an University, Xi’ an 710054,China;2.Seismological Bureau of Shaanxi Province, Xi’ an 710068,China
Keywords:
Q-factor;  first wrival;  earthquake forecast;  half period
PACS:
P208;X141
DOI:
-
Abstract:
By using the digital data recorded by Xi’an digital telemetry seismic network,the temporal change in Q-factor be- fore and after Linyi earthquake with ML= 5.0 in July,1998 is determined through the method for half period of the first arri- val P wave. It is pointed that the Q-factor is 87～ 203 before the earthquake and is 67～ 164 after the earthquake,and clear a- nomaly with high Q-factor appeared in the nearby areas of the epicenter before the earthquake. The result shows that anoma- ly with high Q-factor before a earthquake can be used as a method for earthquake forecast.

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