计算井水位对固体潮和气压滞后响应的新方法

提出了一种计算井水位对固体潮和气压滞后响应的新方法.利用杜得森潮汐展开和泰勒级数展开,导出了计算井水位固体潮系数和气压系数以及滞后时间公式,并给出了考虑滞后影响的井水位固体潮和气压改正公式.利用该法处理了鲁03井水位和气压观测资料,求出该井水位固体潮系数为1.8mm/10~_(-3),水位对固体潮响应的滞后时间为1.53小时,气压系数为6.4mm/hPa,滞后时间为1.5小时。与以前的一般回归分析方法相比,改正后的水位中误差明显减小,改正效果较好。

A NEW METHOD FOR CALCULATING LAG RESPONSE OF WELL WATER LEVEL TO EARTH TIDE AND BAROMETRIC PRESSUTE

In this paper a new method for calculating lag response of well water level to earth tide and baro-metric pressure is given. Using Doodsoon's tidal expansion and Taylor's expansion of progression, the calculation formulas of the tidal and barometric coefficients of a well water level and their lag time are deduced, and the formulas corrected the water level in a well by the earth tide and barometric pressure in consideration of the lag effect are given.The observation data of the water level and barometric pressure in the Well Lu-03 are processed by this mew method. It is calculated that the tidal coefficient of the well water level is 1. 8 mm/10, the lag time of the response of water level to the earth tide is 1. 53 hour, the barometric coefficient is 6. 4 mm/hPa and the lag time is 1. 50 hour. The standard deviation of the water level corrected by the new method evidently is less than that of former general regression analisis. The new results are better.