甘肃定点形变台观测精度与监测能力的评定

EVALUATION OF OBSERVATION PRECISION AND MONITORING ABILITY OF FIXED DEFORMATION STATIONS IN GANSU PROVINCE

摘要:

本文系统地研究了甘肃省定点形变台网状况、台址条件及有关情况。用年零漂、年变幅值、频数分布、噪声水平、周期性干扰因素、潮汐精度等定量指标对观测精度进行了评定,提出了存在差异的原因及改善措施。本文还对高台台及兰州台的观测资料进行了分析,讨论了其预报指标与监控能力。

Abstract:

This paper systematically analyses the state, site condition and other situation of fixed deformation station network in Gansu Province. The observation precision is evaluated by some quantitative indices, and the difference causes and improving measures are presented. The data observed at Gaotai and Lanzhou stations are analysed. And anomalous indices in the data and monitoring ability to mid-strong earthquake of the two stations are also discussed.