Aeromedia U.A.V., S.L., a number one Spanish firm specializing in aerial survey applied sciences, just lately undertook an bold undertaking involving a complete survey of a 10-km-long hall within the reservoir Logrosan-Caceres. The undertaking aimed to showcase the facility of integrating a number of survey applied sciences, together with LIDAR, high-resolution photogrammetry, and an airborne echo sounder system developed by SPH Engineering, significantly for mapping terrestrial and underwater terrains.
The work aimed on the topography of a water catchment and discharge space close to the Ruecas reservoir in Cáceres. LiDAR+RGB methods had been mixed within the terrestrial space and the ECT 400S single-beam bathymetric probe within the reservoir space. The bathymetry of about 9 hectares took at some point, and the LiDAR flights took one morning. Our shopper obtained a number of cartographic merchandise, akin to DEMs and level clouds.
The Problem
The principle expectations concerning drone-based options had been acquisition velocity and the captured knowledge’s remaining reliability. The first problem was conducting an in depth survey that precisely lined terrestrial and underwater areas. Conventional strategies typically require separate techniques for land and underwater surveying, complicating knowledge integration and growing undertaking time and price. Furthermore, the necessity to survey underneath vegetation and obtain depths of as much as 100 meters underwater demanded an answer that might present distinctive precision and flexibility.
The Multisensor Answer
Aeromedia utilized an revolutionary method to handle these challenges by integrating three applied sciences.
This multi-sensor answer enabled the crew to measure the Earth’s floor seamlessly, capturing correct data from the Digital Terrain Mannequin (TDM), even in areas lined by vegetation, and increasing to underwater environments as much as depths of 100 meters.
The primary was LIDAR (Mild Detection and Ranging) expertise to seize extremely correct 3D terrain knowledge alongside the 10-kilometer hall. LIDAR is famend for penetrating vegetation and offering detailed elevation data, making it a really perfect alternative for this undertaking.
The second answer was high-resolution Photogrammetry: Mixed with LIDAR, photogrammetry performed an important position in capturing detailed floor imagery. This expertise enabled the creation of exact 3D fashions and orthomosaics, permitting for a complete understanding of the realm’s topography.
Final however not least is the airborne Echo Sounder System. The underwater element of the survey was achieved with an airborne echo sounder system supplied by SPH Engineering. This method may seize submerged topography as much as 100 meters, enabling the acquisition of invaluable knowledge from the reservoir’s depths.
Consequence
The mixing of LIDAR, high-resolution photogrammetry, and an airborne Echo Sounder System on a single RPAS platform proved to be extremely efficient, providing a number of key advantages:
Complete Information Assortment: The mixed applied sciences allowed for correct and detailed knowledge assortment throughout land and underwater terrains, offering a holistic view of the surveyed space.
Effectivity and Price-Effectiveness: The undertaking achieved larger effectivity and diminished operational prices by using a unified terrestrial and bathymetric surveying system.
Revolutionary Strategy: The profitable implementation of this multisensor survey showcased the potential for comparable applied sciences to revolutionize the surveying business, setting a precedent for future tasks.
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