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The Coordinate Transformation of Digital Geological Map in accordance with the World Geodetic System (A Case Study of Chungju and Hwanggang-ri Sheets using ArcToolbox)
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  • Journal title : Economic and Environmental Geology
  • Volume 48, Issue 6,  2015, pp.537-543
  • Publisher : The Korean Society of Economic and Environmental Geology
  • DOI : 10.9719/EEG.2015.48.6.537
 Title & Authors
The Coordinate Transformation of Digital Geological Map in accordance with the World Geodetic System (A Case Study of Chungju and Hwanggang-ri Sheets using ArcToolbox)
Oh, Hyun-Joo;
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 Abstract
In Korea, the use of world geodetic system(WGS) has been mandated in year 2010. Accordingly, the national geographic information institute(NGIS) provides the digital maps according to the WGS. Nevertheless, most of the digital geological maps are still based on the Tokyo Datum(TD). Therefore, users should conduct 2D/3D geological spatial analysis after converting the coordinates of digital geological maps to WGS. The conversion process is often tedious and troublesome for certain users. Therefore, in this study, the method to transform coordinate from TD to WGS using ArcToolbox is introduced for users not familiar with the process. For a better appreciation, the Chungju and Hwanggang-ri digital sheets of 1:50,000 scale was chosen as an example. Here, Chungju and Hwanggang-ri sheets were defined based on the TD-central origin and TD-east origin, respectively. The two sheets were merged after the transformation of TD-east origin of Hwanggang-ri to the TD-central origin, and eventually transformed to WGS-central origin. The merged map was found to match exactly with the digital map(Daeso 367041). The problem of coordinate determination in previous digital geological maps was solved effectively. The proposed method is believed to be helpful to 2D/3D geological spatial analysis of various geological thematic maps.
 Keywords
digital geological map;digital map;world geodetic system;Tokyo datum;ArcToolbox;
 Language
Korean
 Cited by
1.
Summarized Reviews on Geodetic Coordinate System and Map Projection for Practitioners in Exploration Geophysics, Geophysics and Geophysical Exploration, 2016, 19, 4, 236  crossref(new windwow)
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