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EARTHQUAKE ›› 2024, Vol. 44 ›› Issue (3): 86-95.doi: 10.12196/j.issn.1000-3274.2024.03.006

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Mechanism Analysis of Quasi Synchronous Changes in Water Level and Water Temperature in Tongliao Earthquake Observation Well in Inner Mongolia

DING Feng-he1, HAN Xiao-lei2, DAI Yong2, ZHU Peng-tao1   

  1. 1. Earthquake Agency of Ningxia Hui Autonomous Region, Yinchuan 750001, China;
    2. Earthquake Agency of Inner Mongolia Autonomous Region, Hohhot 010010, China
  • Received:2024-02-20 Accepted:2024-06-11 Online:2024-07-31 Published:2024-08-28

Abstract: Using regional hydrogeological data, water temperature gradient test results, regional groundwater exploitation data, and precipitation data, the factors affecting the multi-year and interannual changes in water level and temperature in the Tongliao earthquake observation well in Inner Mongolia were analyzed. On this basis, a hydrodynamic geological model was constructed to explore the mechanism of quasi synchronous changes in water level and temperature in the well. The results indicate that regional groundwater extraction and rainfall are the main influencing factors for the quasi synchronous changes of water level and temperature in the well, and the cold water infiltration theory can well explain these quasi synchronous changes.

Key words: Water level, Water temperature, Influencing factors, Cold water infiltration, Groundwater transport, Tongliao earthquake observation well

CLC Number: