DS1300型压力式潮位仪潮位观测质量控制的探讨

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中图分类号：P715 文献标志码：A 文章编号：1005—9857（2025）06-0059-09

Discussion on Quality Control of Tidal Level Observation by DS130o Pressure Type Tide Gauge

QINYu1，XUHong²，WANGLei¹，XIEWufeng1，XINGHuibin1 （1.South China Sea Marine Forecast and Hazard Mitigation Center，MNR，Guangzhou 5lO3lo，China; 2.Surveying and Mapping Institute Lands and Resource Department of Guangdong Province， Guangzhou 510663，China）

Abstract： DSl3O0 pressure type tide gauge （hereinafter referred to as pressure type tide gauge） is one of the main instruments for coastal tidal observation，which has the characteristics of low cost，convenient deployment，and stable observation performance. However，due to the influence of the environment， pressure type tidal gauges are prone to errors during the observation process. This article compares the tidal observation values of two tidal gauge stations，namely the float type tidal gauge，radar type tidal gauge，and pressure type tidal gauge. At the same time，based on traditional atmospheric pressure and seawater density corrections， further analysis and exploration are conducted on the causes of observation errors in pressure tide gauges. The results show that： （1） Compared to float type tide gauges and radar type tide gauges， pressure type tide gauges have larger observation errors.（2） In nearshore areas，due to the relatively low salinity of seawater， traditional seawater density correction methods have a certain effect on error processing of pressure type tidal level data，but their effect is not significant.（3） The error of pressure tidal level is not directly related to astronomical tide.Due to the amplification of the influence of astronomical tide on regional tidal level by terrain，the tidal range is increased，making the error of pressure tidal level more sensitive to changes in astronomical tide，and thus the relationship is obvious. In areas with large tidal ranges，pressure type tidal level observations have large errors and a high correlation with astronomical tides；During periods of large tidal range，the observation error of pressure type tidal level is more susceptible to the influence of tides.

Keywords：Tide，Pressure type tide gauge，Quality control，Error

0 引言

由于月球和太阳引潮力的作用，海水产生规律性升降的现象叫作潮汐[1]。（剩余10941字）