兰州和海拉尔核查地震台阵慢度和方位角校正方法研究

Research on Method of Slowness-Azimuth Station Corrections for LZDM and HILR Verification Seismic Arrays

摘要:

介绍了一种地震台阵慢度和方位角格点校正方法,在预定义的格点空间调整校正慢度和方位角,从而消除系统偏差,提高地震台站慢度与方位角估计的精度。利用该方法对我国核查地震台阵海拉尔和兰州方位角和慢度进行了校正,离线和在线的测试显示了台站慢度和方位角估计性能的提高。

Abstract:

A method of slowness-azimuth station corrections（SASC）for seismic array which is designed to correct slowness and azimuth in predefined small bins is introduced.The aim of SASC is to remove the systematic bias from observations so that the performance slowness-azimuth for stations can be improved.The slowness-azimuth for HILR and LZDM Verification Seismic Arrays in Comprehensive Nuclear-Test-Ban Treaty（CNBT）Beijing National Data Centre（NDC） is corrected using this method,and the rusults of testing with new correction show improvement of slowness and azimuth estimation.