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http://dx.doi.org/10.7780/kjrs.2020.36.2.2.4

Precise Topographic Change Study Using Multi-Platform Remote Sensing at Gomso Bay Tidal Flat  

Hwang, Deuk Jae (Korean Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Kim, Bum-Jun (Korean Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Choi, Jong-Kuk (Korean Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Ryu, Joo Hyung (Ocean Research, Operations & Support Department, Korea Institute of Ocean Science and Technology)
Publication Information
Korean Journal of Remote Sensing / v.36, no.2_2, 2020 , pp. 263-275 More about this Journal
Abstract
In this study, DEMs (Digital elevation model) based on LIDAR, TanDEM-X and UAV (Unmanned Aerial Vehicle) are used to analyze topographic change of Gomso tidal flat during a few years. DEM from LIDAR data was observed at 2011 by KHOA (Korean hydrographic and oceanographic agency) and DEM based on TanDEM-X data was generated at Lee and Ryu (2017). UAV data was observed at KM and KH area of Gomso tidal flat. KM area was surveyed at MAY and AUG 2019, and KH area was surveyed at APR 2018 and MAY 2019. During research period, 2011 to AUG 2019, elevation of KM area is decreased 0.24 m in average, and Chenier is retreat to landward about 130 m. In KH area, elevation is increased 0.16 m in average during research period, 2011 to MAY 2019. It is expected that multi-platform remotely sensed data can help to study accurate topographic change of tidal flat.
Keywords
Gomso bay; Tidal flat; UAV; Topography change; Multi-platform remote-sensing;
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