潮汐基准的量级分析与精度估算  

Order Analysis and Precision Estimation of Ocean Tidal Datum

作　　者：崔杨[1] 暴景阳[1] 金绍华[1] 张杰 王银花[3] 

机构地区：[1]海军大连舰艇学院海洋测绘系 [2]91566部队 [3]海军出版社

出　　处：《海洋测绘》2016年第5期5-9,共5页Hydrographic Surveying and Charting

基　　金：国家自然科学基金(41374108;41476087;41576105)

摘　　要：海洋基准是大地测量基准在海洋及其他水域的扩展,是大地测量基准的重要组成部分,其中既包含大地测量类的基准,又有潮汐类的基准。潮汐类基准包括平均水位、深度基准和净高基准,它们都具有潮汐基准的特征,在不同国家、海区甚至不同时期的选择往往都不同,因此,这类基准存在着离散、跳变、不连续等诸多问题,且缺乏精度信息。海洋无缝垂直基准体系的建立与完善需要了解各种基准及其特点,本文在定义和数据来源的基础上对各类潮汐基准的量级进行分析并估算其精度。Marine datum is the extension of geodesy datum in ocean and other waters,and it is the important component of geodesy datum.It is consisted of geodetic datum and tidal datum.Tidal datum includes MSL,depth datum and clearance datum,they all have the characteristics of tidal datum,and are often different in different countries,sea area or periods.So there are lots of questions in tidal datum and it lacks of precision information. All kinds of datum need to be fully understood in the establishment and the improvement of the marine seamless vertical datum system.The paper analyzes the order of tidal datum and estimates their precision on the base of definition and data source.

关 键 词：大地测量学与测量工程 平均水位 深度基准 净高基准 量级与精度 

分 类 号：P229[天文地球—大地测量学与测量工程]