安丘形变台室内基线变化特征分析
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摘要
对安丘地震台16年室内基线的研究结果表明:室内基线观测精度可达到2×10~(-7).室内基线的变化大部分是室温引起的地表热形变,其量值达7×10~(-5).地壳活动的信息仅为5×10~(-6).因而降低和消除地表热形变是提高室内基线应用价值的关键.
The research result of the indoor base line of Anqiu seismographic station in 16 years shows that the measurement precision of the indoor base line can reach 2×10-7. A large part of the indoor base line variation is cursed by ground surface thermal deformation, with its value reaching 7×10-5. The information of seismic activity is only about 5×l0-6, Thus decreasing and eliminating the ground surface thermal deformation is the key to improve the applied value of indoor base line.
The research result of the indoor base line of Anqiu seismographic station in 16 years shows that the measurement precision of the indoor base line can reach 2×10-7. A large part of the indoor base line variation is cursed by ground surface thermal deformation, with its value reaching 7×10-5. The information of seismic activity is only about 5×l0-6, Thus decreasing and eliminating the ground surface thermal deformation is the key to improve the applied value of indoor base line.
引文
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