Detecting the Lagoon Level Surface with GPS/RTK-Measurem ents
作者单位：Department of Geomatics Science & Engineering Hohai University Geomatics DepartmentFederal University of ParanaCuritibaBrazil Geodetic Institute of KarlsruheKarlsruhe UniversityKarlsruheGermany
会议名称：《第二届中国卫星导航学术年会》
会议日期：2011年
学科分类：081802[工学-地球探测与信息技术] 08[工学] 081105[工学-导航、制导与控制] 0818[工学-地质资源与地质工程] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0825[工学-航空宇航科学与技术] 0811[工学-控制科学与工程]
关 键 词：heights geoid water level
摘 要：正The approach here presented is based in the use of a water surface as a reference for studying physical aspects related to the gravity *** purpose is to use the mean surface of the lagoon system as an approximation of an equipotential surface close to *** water levels were also observed in several places with Global Positioning System（GPS） where a single reference station provides the real-time corrections,in this case,the Real Time Kinematic（RTK） is a technique *** addition,three tide gauges that registered the heights of the water level in the lagoons were also *** was possible to determine an approximated equipotential surface from the mean lagoon level（MLL） with accuracy better than 0.09 m and to link it with the vertical *** to eliminate the instantaneous water level deviation from an equipotential surface during the campaign was the main hurdle to negotiate.