Predicting the performance of local seismic networks using Matlab and Google Earth.

Chael, Eric Paul

关键词: AMPLITUDES;    COMPUTER NETWORKS;    CONTAINED EXPLOSIONS;    DETECTION;    MONITORING;    PERFORMANCE;    POSITIONING;    REFRACTION;    SIMULATION;   

DOI  :  10.2172/993627
RP-ID  :  SAND2009-7854
PID  :  OSTI ID: 993627
Others  :  TRN: US201024%%95

学科分类：社会科学、人文和艺术（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

We have used Matlab and Google Earth to construct a prototype application for modeling the performance of local seismic networks for monitoring small, contained explosions. Published equations based on refraction experiments provide estimates of peak ground velocities as a function of event distance and charge weight. Matlab routines implement these relations to calculate the amplitudes across a network of stations from sources distributed over a geographic grid. The amplitudes are then compared to ambient noise levels at the stations, and scaled to determine the smallest yield that could be detected at each source location by a specified minimum number of stations. We use Google Earth as the primary user interface, both for positioning the stations of a hypothetical local network, and for displaying the resulting detection threshold contours.