Abstract
This paper first develops the approaches to determine the geopotential of the local mean sea level, and then investigates the offset of the 1985 vertical datum surface defined by the mean sea level of Yellow Sea at the Dagang Tide Gauge in Qingdao city using the developed approaches and GPS/leveling data. It shows that the geopotential of the local mean sea level at the tide gauge is equal to 62 636 853.5±0.2 m2·s−2 and that the 1985 vertical datum surface is 24.6±5.4 cm above the geoid realized by the geopotential W0=62 636 856.0±0.5 m2·s−2.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
NBSM (National Bureau of Surveying and Mapping) (1986) National geodetic atlas of the People's Republic of China. Xi'an: Xi'an Publishing House of Cartography.
Guan Z L, Li Z F, Li Y C (1991) Issue on sea surface topography.Marine Surveying and Mapping (quarterly), (3) (in Chinese)
Lemoine L G, Kenyon S C, Factor J K, et al. (1998) The development of the Joint NASA GSFC and the National Imagery and Mapping Agency (NIMA) Geopotential Model EGM96. NASA/TP-1998-206861
Moritz H (2000) Geodetic reference system 1980.Journal of Geodesy, 74(1)
Burša M, Kouba J, Kumar M, et al. (1999) Geodal geopotential and world height system. The XXIIth IAG General Assembly, Symposium G1, Bimingham.
Author information
Authors and Affiliations
Corresponding author
About this article
Cite this article
Ziqing, W., Wenhai, J. Determination of geopotential of local vertical datum surface. Geo-spat. Inf. Sci. 6, 1–4 (2003). https://doi.org/10.1007/BF02826693
Issue Date:
DOI: https://doi.org/10.1007/BF02826693