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http://dx.doi.org/10.11108/kagis.2018.21.3.119

A Study on Hydrographic Survey based on Acoustic Echo-Sounder and GNSS  

PARK, Eung-Hyun (Korea Hydrography and Research Association)
KIM, Dae-Hyun (Korea Hydrography and Research Association)
JEON, Hae-Yeon (Korea Hydrography and Research Association)
KANG, Ho-Yun (Korea Hydrography and Research Association)
YOO, Kyung-Wan (Korea Hydrography and Research Association)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.21, no.3, 2018 , pp. 119-126 More about this Journal
Abstract
In this study, In this study, the Datum Level-based hydrography surveying system and the ellipsoid-based system were analyzed to acquire more consistent depth data. For the study, the ellipsoid-based surveying for hydrography was conducted twice for the same track line. And the depth was calculated by correcting rise and fall of water level (water level change by tidal energy and other marine environmental energies) respectively by the traditional water level correction method and ellipsoidally referenced water level correction method. there is able to check that Ellipsoid-based hydrographic surveying data is more improved than Datum Level-based hydrographic surveying data in aspect of level difference phenomenon in the same area (surveying line). This result shows that if the Ellipsoid-based hydrographic surveying is performed, the sea level change (tidal energy and other marine environmental energy) of the survey area in real time could be reflected to more consistent generating bathymetric data.
Keywords
Ellipsoid; Datum Level; GNSS; Tide; Depth; Bathymetry; Hydrography;
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  • Reference
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