天津高村井水位主要周期成分的干扰因素及特征分析

以天津高村井水位与气压观测数据及理论固体潮为研究对象,首先利用别尔采夫滤波滤除其日波、半日波;其次利用一般多项式分段曲线拟合(按月分段),将周期在1-2个月内的月波滤除;再次利用小波分析研究高村井水位分钟值与气压、理论固体潮的关系,结果表明:1)高村井水位观测主要周期有日波、半日波、1-2月的月波及年周期;2)高村井水...

Analysis of Interfering Factors and Characteristics of Main Periodic Components of Well Water Level in Gaocun,Tianjin

In this paper,the observation data of water level and pressure in Gaocun well,Tianjin and the theoretical solid tide are researched.Firstly,the daily wave and semidaily wave are filtered out by Birzef filtering.Secondly,the general polynomial piecewise curve fitting(piecewise by month)is used to filter the monthly wave with a period of 1-2 months.Wavelet analysis is used to study the relationship between the short period information of gaocun well water level and meteorological factors.The results show that:1)The main periods of the Gaocun Well water level observation include daily waves,halfdiurnal waves,and monthly and annual cycles from January to February;2)The main influencing factors of the daily and semi-diurnal waves of the Gaocun well water level are solid tides.Linear relationship;3)The monthly wave frequency of Gaocun well water level from January to February is significantly affected by air pressure,and the well water level has a linear relationship with air pressure;4)Wavelet analysis results show that the water level of Gaocun well is linear with air pressure in the 64-256 min frequency band The correlation is relatively high,and it is significantly affected by air pressure.