Twenty four Coastal sand dunes, located in Taean-haean National Park, have played an important role as an natural break water protecting coastal area. However, radical erosion process has incresed for decades has caused by... [ view full abstract ]
Twenty four Coastal sand dunes, located in Taean-haean National Park, have played an important role as an natural break water protecting coastal area.
However, radical erosion process has incresed for decades has caused by artificial retaining wall, decreased sediment supply reduction and indiscriminated gathering of sea sand.
KNPS(Korea National Park Service) has been working on a project restoring coastal sand dunes in Taean-haean National Park since 2002. The project is not only installation of sand trap which can make sand sedimentation well but also elimination of artificial retaining wall which can cause changing wave energy. Moreover, monitoring and restoring of vegetation cover has undertaken on a regular basis.
Since drone technology applied to park management recently, coastal sand dunes can be observed topographic changes quickly and precisely.
Obtained overlapped aerial pictures have been analysed with DEM(Degital Elevation Model) with a resolution of 2cm by using photo measurement method. Also we have been monitoring changes in vegetation cover applied orthophotograph by drone.
Thus, Time series analysis has been made by using drone in order to study effectively and scientifically.
