Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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Development of Mosaic Aerial Photographs for Shoreline Change Study in Nakdong Estuary

낙동강 하구 해안선변화 연구를 위한 모자이크 항공사진의 구축

  • Kim, Baeck-Oon (SERC, Kunsan National University) ;
  • Khim, Boo-Keun (Department of Marine Sciences, College of Natural Science Pusan National University) ;
  • Lee, Sang-Ryong (Department of Marine Sciences, College of Natural Science Pusan National University)
  • 김백운 (군산대학교 새만금환경연구센터) ;
  • 김부근 (부산대학교 자연과학대학 해양과학과) ;
  • 이상룡 (부산대학교 자연과학대학 해양과학과)
  • Published : 2005.12.31
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Abstract

This paper presents a method for obtaining mosaic aerial photographs that are useful for a long-term shoreline change study in the Nakdong estuary. Although this method involves digital photogrammetry software of the shelf its usage can be simplified to accomodate the shoreline change study. Ground control points, which are common in aerial photographs, were measured from digital maps. Block triangulation was highly affected by land-based GCPs. Extension of tie points near the shoreline to vertical control points gave more reliable results for the block triangulation. A constant Digital Elevation Model (DEM), close to mean sea level, was employed to produce ortho-rectified photographs, from which mosaic photographs were made. Accuracy of photographs were found to be acceptable for the analysis of long-term shoreline change, and the promising construction of a shoreline change database in the Nakdong estuary.

Keywords

References

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  2. Shoreline-change Rates of the Barrier Islands in Nakdong River Estuary Using Aerial Photography and SPOT-5 Image vol.35, pp.1, 2013, https://doi.org/10.4217/OPR.2013.35.1.001
  3. Analysis on the Long-Term Shoreline Changes for Beaches Near Bangpo Port Using Aerial Imagery vol.29, pp.5, 2013, https://doi.org/10.7780/kjrs.2013.29.5.3
  4. The use of elevation adjusted ground control points for aerial triangulation in coastal areas vol.18, pp.6, 2014, https://doi.org/10.1007/s12205-014-0390-9
  5. Shifts in depositional environments as a natural response to anthropogenic alterations: Nakdong Estuary, South Korea vol.343, 2013, https://doi.org/10.1016/j.margeo.2013.05.010