THE USE OF UNMANNED AERIAL VEHICLES (UAV) FOR RECONSTRUCTION OF TOPOGRAPHY AND BATHYMETRY MAPS: CONSIDERATION FOR CIVIL CONSTRUCTION AGAINST COASTAL ADAPTATION DUE TO CLIMATE CHANGING

The global sea level rise is rapidly increased as the result of climate change which
indicated by the expansion of marine heat and ice melting. It was identified as one of
the most contributing factors, which threatens coastal communities, even national
economy of a country. The combination of groundwater flooding and coastal flood
was reported to make a total loss of at least 5 billion rupiahs with respect to crop
failure of tons of seaweed as well as fish lost. The aim of this research is to construct a
topographic and bathymetric map using Unmanned Aerial Vehicles (UAV)/drone
series DJI Phantom 3 Advanced. The UAV is used in companion with other
instruments, such as total station and geodetic station. The UAV is used mainly to take
aerial images, which is further processed to obtain contour maps. The results indicate
that the contour maps are accurate and can be used to help in making appropriate
decision to the global climate change.