The Utilization of the Unmanned Aerial Vehicle (Uav) / Drone and Sonar in facing of Global Warming for Flood Design in Construction Era 4.0.

Abstract

Global warming is always increasing; then it impacts to climate change, which is indicated by an increase in seawater temperature, melting ice, sea-level rise and flooding. In the research area at Jabon District Sidoarjo was affected by sea flood in December 2017 within material loss about 5 billion rupiahs. This research aims to utilise the recent technology in construction era 4.0 with photogrammetric techniques using Unmanned Aerial Vehicles along with sonar tools to analyse flooding events by making bathymetry maps with low and affordable costs in watersheds. Besides, an analysis of the effects of tides and wave heights was also carried out. The method in this research was carried out the right photogrammetric technique, for bathymetry mapping using Menci APS software and processed using ArcGIS, and Surfer software to provide a 3-dimensional appearance. Also, sonar tools use as benchmarks with high accuracy in the bathymetry mapping and river sedimentation occurrence. Sonar combined with the use of drones in the acquisition of tools. From the result of the acquisition of a drone indicate that the optimum height is 80 meters in the morning and evening. The outcome of this study proves that the watershed at the study site underwent sedimentation on the right side of the river from upstream during the floods last year. There was a tidal influence on the condition of the highest high water level, which caused seawater to pass through the river bank as high as 10 centimetres. Regarding analysis data, to overcome this problem, dredging of the riverbed and the appropriate construction of river banks/embankments are higher and more durable.