论文部分内容阅读
新丰江水库区,自1963年秋建成地形变试验网以来已有十七年,取得了十二期起始边天文方位角数据。所得历期成果经光行差、极移、化归至平均海水面和仪器度盘误差的改正后,取得了令人满意的精度。其测角中误差 M_(min)=±0.″08,M_(CP)=±0.″13。作者在观测的基础上,从上述成果中发现了一个以周期 T=304天(十个月)的正弦型的地动频谱规律。用经地动频谱动态改正后的方位角值,解算出第一期对向观测不符值为+1.″83;同时对1963年12月6日M_S=4.3级地震的地震效应作出了解释。
Xinfengjiang reservoir area, since the completion of the deformation test network in the autumn of 1963, has been seventeen years, and has made the first phase of the astronomical azimuth data of the twelfth phase. The results obtained after the end of the light row, pole shift, the return to the average sea level and instrument calibration error correction, and achieved satisfactory accuracy. The error in the goniometer M min = ± 0. “08, M_ (CP) = ± 0.” Based on the observations, the authors found a sinusoidal ground motion spectrum law with a period of T = 304 days (ten months) from the above results. Using the dynamic azimuth corrected azimuthal values, the first-phase observed discrepancies are calculated as +1. "83 At the same time, the seismic effect of the M_S = 4.3 earthquake on December 6, 1963 is explained.