【摘要】 地震数据质量直接影响地震监测和速报的准确性及可靠性，对防震减灾事业具有重要意义。以上海测震观测资料为研究基础，采用定性和定量分析相结合的方法，围绕测震台网运行率、波形可用率、台基背景噪声、干扰以及台网布局合理性，对测震观测数据质量进行综合分析。结果发现：上海测震台网总体运行稳定，数据连续率较高；部分地震台站背景噪声偏大；受基岩出露影响，上海东部和西北部地区布设台站较少，导致地震监测能力较弱，测震台网布局有待优化。本项工作的开展对今后地震台站改造以及新台站建设具有参考意义。更多还原

【Abstract】 The quality of waveform data directly affects the accuracy and reliability of earthquake monitoring and rapid reporting, which is of great significance to the cause of earthquake prevention and disaster reduction. Based on the seismic observation data of Shanghai, we discuss and analyze the quality of seismic observation data from the aspects of network operation rate, waveform availability, base background noise, interference, and network layout rationality. It is concluded that the overall operation is stable and the data continuity rate is high. The background noise of some stations is relatively high. In addition, there are fewer stations in the east and northwest of Shanghai due to the exposure of bedrock, resulting in a weaker monitoring capability. The network layout needs to be further optimized. This work is of great significance to the reconstruction of stations as well as the construction of new stations in the future.更多还原