宜昌台观测资料质量与映震效果对比研究  

COMPARATIVE STUDY ON QUALITY AND COSEISMIC EFFECT ON DIGITAL OBSERVATIONS AT YICHANG SEISMOSTATION

作　　者：王慧 孙伶俐[2] 黄仲 李明[2] 

机构地区：[1]湖北省地震局,武汉430071 [2]中国地震局地震研究所(地震大地测量重点实验室),武汉430071

出　　处：《大地测量与地球动力学》2013年第A01期85-90,共6页Journal of Geodesy and Geodynamics

基　　金：武汉市科技计划项目(2013060501010166);中国地震局震情跟踪合同制项目(2011020205);中国地震局地震研究所所长基金(IS200946086)

摘　　要：对2007—2012年宜昌台DSQ"九五"数字化水管倾斜仪升级改造前后的观测数据进行对比分析发现,改造后的仪器连续率指标保持稳定,观测数据抗干扰和映震效果明显增强,潮汐因子和中误差精度水平略有提高。受仪器改造完成时间较短影响,观测数据的日均漂移量跟往年同期相比稍有增大,观测系统还需进一步稳定。The observation data of water tube tiltmeter are collected at Yichang seismostation before and after the Ninth Five-Year Plan technical upgrade from 2007 to 2012. The results indicate that the instrument performance is improved, anti-interference and coseismic effects are enhanced obviously, and tidal factors of M2 wave and rela- tive error of observation data are increasing slightly than the original level. However, because of the short time of the instrument technical transformation, the day drift of observation data increases slightly compared with the same period of previous years, and the observation system needs further stabilization.

关 键 词：水管倾斜仪 数字化 “九五”改造 资料质量 映震效果 

分 类 号：P315.72[天文地球—地震学]