九江1井水温动态变化特征

摘要

In this study, we analyzed the water temperature data of Jiujiang-1 well from 2010 to 2015. And the research suggests that: The daily variation of water temperature at Jiujiang-1 well is stable; The long-term upward trend of the temperature is caused by instrumental drift; It shows a negative correlation between the water temperature variation and water level lfuctuation, which is relevant to precipitation recharge; the co-seismic water temperature change induced by teleseism performs a sudden drop and then gradually return to normal temperature. The preliminary conclusion is that this behavior is resulted from well water turbulence and mixture of upper cold water with lower warm water.%以九江1井水温观测资料为研究对象,主要选取2010—2015年观测数据进行重点分析.研究发现:九江1井水温日变稳定.多年趋势向上,初步判断为观测仪器零漂.水温年动态与同井水位年动态呈负相关关系,与降水补给有关.水温对远大地震有同震响应,响应特征为突降后逐渐恢复正常,主要原因为井水震荡,上层冷水混合.