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Technology and Engineering
- ISSN: 2333-2581
- Modern Environmental Science and Engineering
Establishing Efficient Cadastral Surveying Plan in Accordance with Introducing World Geodetic Reference System in Korea
Sang Gu Kang
Spatial Information Research Institute, South Korea
Abstract: In Korea, cadastral records were made based on local coordinate system since 1910, from 2010 cadastral survey has been conducted by WGS in accordance with Act on the surveying & hydrographic and cadaster and special Act on the cadastral resurvey. There may occur some problems when considering distinct characteristics of cadastral surveying like a reinstatement using WGS (world geodetic system) if there are republished national control points related to ITRF version and tectonic deformation etc. Korea has accepted ITRF2000 at a reference epoch 1 January 2002 but ITRF version will be changed if made a precise model of new Earth’s center of mass. ITRF2008 is a latest solution at present and ITRF2013 solution will release in the near future. After the 2011 Tohoku earthquake and tsunami, NGII (National Geographic Information Institute) analyzed effects of earthquake about national control points and then republished new coordinate for national control points on 27 January 2014. But there are no renewal methods for cadastral control points which was made by old national control so it is urgently needed for updating cadastral data. This study is how to manage cadastral data based on WGS, firstly analyzing influence of cadastral data due to republished control points and suggest how to revise old control data to the new national control points. And also made a suggestion for how to update when republishing national control points or releasing new ITRF version.
Key words: Cadastral Record, WGS (world geodetic system), ITRF2000, NGII (National Geographic Information Institute)
