压力式验潮仪数据误差分析及校准

Analysis and calibration on data error of the pressure tide gauge

随着压力式验潮仪的广泛使用,其数据准确度越来越受到关注。文章根据压力式潮位计算原理,对海上观测平台压力式与浮子式验潮仪的潮位数据进行分析与比对,得出两者潮位数据之间的误差关系及产生原因,同时结合海水温度、盐度及所在位置重力加速度对压力式潮位数据进行计算校准,最终达到数据校准目的,有效减小压力式潮位数据误差,为提升海上临时验潮数据准确度提供技术依据。

With the extensive use of pressure tide gauge,the data accuracy is more and more concerned.Based on the pressure tide level calculation principle,this paper analyses and compares tidal data between the pressure and float type on the marine observation platform.The error relationship and its causes of the both tidal data are obtained.Combined with the calculation and calibration to pressure tidal data of seawater temperature,salinity and the location of gravity acceleration,the purpose of data calibration is finally achieved.The data errors of pressure tide gauge are effectively reduced,which provide a technical basis for the accuracy of maritime temporary tide data.