【摘要】 准确的区域地震走时表对于降低国际监测系统的全球地震监测阈值有着非常重要的作用。论文介绍了一种基于三维地球模型和地震层析成像的区域地震走时校正(RSTT)方法,该方法大大减少了区域地震波走时预测误差,从而可提高地震事件的定位精度。探讨了RSTT的原理、方法以及应用现状,并提出了扩展RSTT模型到新地区的方法。更多还原

【Abstract】 Accurate regional seismic travel time predictions are important to lower the global seismic detection threshold in global monitoring systems.The method of improving regional seismic travel times based on three-dimensional global model and seismic tomography is discussed and tasks for extending RSTT tomography to new areas are presented in the paper.The method reduces travel time residual and improves location accuracy at regional distance.更多还原