兰州台CZB-1型竖直摆倾斜仪观测资料初步分析

Primary Study on CZB-1 Type Vertical Pendulum Tiltmeter Data at Lanzhou Observatory

分析研究了兰州台CZB-1型竖直摆倾斜仪2001—2003年的观测资料，结果表明其潮汐响应函数的测量精度达到了观测规范的要求，资料对发生在该台站附近5级左右地震有一定程度的短临异常显示。

According to the analysis of the CZB-1 type vertical pendulum tiltmeter data recorded at Lanzhou Observatory in 2001-2003, we think that the observation accuracy of tide response function reaches the observation standard, and the observation data can show short-term and impending-earthquake anomalies in a certain extent before the earthquakes with magnitude 5 or so in the area around the Observatory.