2009, Vol.9, No.1

Journal of the Korean Cartographic Association 2023 KCI Impact Factor : 1.34

pISSN : 1598-6160
https://journal.kci.go.kr/jkca

This study investigates life and achievement of Siebold who has not been widely recognized in Korean cartographic society even though he introduced Korea to the west only after Hamel. In particular, this study considers Siebold’s life as a doctor, cartographer, and regional specialist and corresponding his social and cultural background by examining documents from birth through school periods. The result shows that Siebold was born and raised under the influence of doctor family. However, his uncle inspired him to study various fields, and he became a doctor, botanist, cartographer, and regional specialist after all. In particular, he regenerated ‘Map of Japan and Neighboring Countries’ where Ulleungdo and Dokdo were marked as Korean territory. In addition, ‘Chosun-jundo’, made by Siebold also, suggests strong possibility of Korean maps’ influence to Tamiya’s ‘Chosun-paldojido’. Reflected by ‘Chosun-jundo’, Korean maps were diffused to Japan in 16th century and imitated by Hayashi in 1785, and the imitated map were most likely distributed as Tamiya’s ‘Chosun-paldojido’. Seibold’s ‘Map of Japan’ brought confusion to European cartographic societies differentiating Ulleungdo and Dokdo.

Internet-serviced maps can be classified into four groups based on methodologies of putting place names. Firstly, the most general and common type of maps include CIA World Fact Book maps and World Atlas, which is merely image files such as jpg and tiff and the number of place names on the maps are minimal. These types of maps are widely used in many web sites. Secondly, there are digital maps with zoom-in and zoom-out functions, which show different number of place names with the varying scale. Thirdly, there are also some maps which use illustrator map or adobe pdf style, which exhibit different levels of names with the click of menu bars. Lastly, there are maps with virtually no place names but the boundary files.

This research was implemented in order to compare the results of the map generalization quantitatively using the line simplification. That is, the Douglas-Peucker algorithm was applied to the empirical case study, and the results with different tolerances were compared mainly by focusing on the total line length and the number of constituent line segments. The study region was the western part of the New York State, and the DLG-formatted map data at 1:24,000 scale from USGS were used. As a result of the analysis, with the increased tolerances, the total line length in the resulting maps became smaller smoothly, while the number of the line segments drastically. In addition, there was the strong positive relation between them were detected.