Acta Geodaetica et Cartographica Sinica ›› 2017, Vol. 46 ›› Issue (10): 1770-1777.doi: 10.11947/j.AGCS.2017.20170322

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Progress and Prospects in Developing Marine Vertical Datum

ZHOU Xinghua1,2, FU Yanguang1,2, XU Jun3   

  1. 1. College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao 266590, China;
    2. First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;
    3. Department of Hydrography and Cartography, Dalian Naval Academy, Dalian 116018, China
  • Received:2017-06-19 Revised:2017-07-17 Online:2017-10-20 Published:2017-10-26
  • Supported by:
    The International Science and Technology Cooperation Program of China (No. 2014DFA21710);The Marine Surveying and Mapping Program Based on Satellites (No. WX0316005);The Nation Natural Science Foundation of China (No. 40706038);The GNSS Business Project (No. FZ0317001);The Youth Science Foundation (No. 41706115)

Abstract: Marine vertical datum system construction is the basic work of marine surveying. In the 2009-2012, China has preliminarily constructed the transformation and unification of different height/depth datum model in the China Sea of 80 nautical mile. In recent years, this model has been extended to the South China Sea, the western Pacific and the eastern Indian Ocean, and then a seamless vertical datum model in the south and north pole area to the whole world gradually will be constructed in the near future, this is the foundation of supporting the digital ocean construction in China. This paper mainly discusses the research status of marine vertical datum construction which had been carried out in major coastal countries or regions, analyzes the main work and approaches and key technologies in the process of the marine vertical datum system building, and then expounds the achievements and existing problems in the practice of our country marine vertical datum building.

Key words: ocean tide, vertical datum, chart datum, satellite altimetry, harmonic analysis

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