探讨水文、气象因素对九江台形变资料的影响

Discussion on the Impact of Hydro-geological and Meteorological Factors on Deformation Data in Jiujiang Province

利用九江台数字化形变观测资料,分析了形变各测项受温度、降雨、气压和水位等因素的影响情况。分析结果表明,年变动态较好的测项往往固体潮质量稍差、受降雨影响较小,且主要受控于洞温,而年变形态较差的测项往往受降雨影响明显;气压短期大幅波动对各测项有不同程度的影响;水位变幅较大时对大多数形变测项有显著影响。

The paper studies the imapcts of temperature, rainfall, atmospheric pressure and water level on the deformation observation, on the basis of digital deformation observation data at Jiujiang Seismic Station. The result shows that the observation terms with better annual dynamic variations show low quality earth tide, less affected by the rainfall and mainly controlled by cave temperature, and the poor observation terms affected by rainfall is obvious; atmospheric pressure large fluctuation in the short term affects observation to different extents ; water level fluctuation affects most observation.