GPS Gravity-potential Leveling

Wei, Ziqing

doi:10.1007/978-3-642-00860-3_43

Cited by 3 publications

(2 citation statements)

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“…Substantially, it is the difference of potential between the geoid and another equipotential surface. Due to its significant physical meaning and the role in the height system, the geo-potential is often used to estimate the elevation of one point or the difference of height between two points (Heiskanen and Moritz 1967;Guan and Ning 1981;Li et al 2003;Wei and Jiao 2003;Wei 2007).…”

Section: Geo-potential and Height Datummentioning

confidence: 99%

Quasi-Geoid Near Xisha Islands by the Geo-Potential Propagating Technique

Liu

2012

Marine Geodesy

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Height datum is an important part of national geodetic network. Establishment of a unified national land and sea elevation benchmarks and implementation of height datum connection between the Chinese mainland and offshore islands are issues that need to be resolved in geomatics and marine sciences. Derived from basic definition of elevation datum and relationship between geo-potential and normal height, the scientific theory and algorithm for transferring height datum from mainland to islands with geo-potential are elaborated. The accuracy of geo-potential difference is discussed using a numerical analysis method. We also give criteria to choose virtual leveling routines and algorithm to give optimized results. One experiment in the China seas, among 26 tidal gauge stations in the sea coast of the mainland with known normal height, has confirmed the reliability and accuracy of the method developed in this paper. Further optimizations for improving accuracy of island elevation are also introduced. Distribution of quasi-geoid near Xisha Islands is also given with this method.

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Section: Geo-potential and Height Datummentioning

confidence: 99%

Quasi-Geoid Near Xisha Islands by the Geo-Potential Propagating Technique

Liu

2012

Marine Geodesy

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“…If they are not clear, they can consult the experiment teacher. [8]During the internship, each experimental project should establish the corresponding project situation table, register the instructor and the main participants of the experiment, and fill in the corresponding experimental progress table for the instructor to check the progress of the project regularly, so as to know the experimental situation of students at any time. At the end of the experimental project, students will make a timely summary and submit the internship summary or paper, and then the instructor will finally evaluate the students' performance.…”

Section: Establish a Laboratory Management System To Improve The Efficiency Of Laboratory Managementmentioning

confidence: 99%