Recent News and Events
Insights from Attending and Presenting at the 2016 68th Annual Harbor Masters & Port Captains Conference
I recently returned from the 68th Annual Ports and Harbors Conference held in San Pedro, California where I gave a presentation on the application of new surveying and monitoring technologies.
My presentation was on how aerial, boat, and underwater drones and autonomous data acquisition systems that are new to the survey and monitoring market can significantly impact the maritime industry. Some of the benefits of using drones from planning to monitoring for port/harbor projects are:
I encourage each port/marina project manager to investigate these new technologies of drones and autonomous data acquisition systems, which are revolutionary in their potential to improve general operation of marine facilities.
The conference guide and information about the presentation on Wednesday October 12th can be found at:
Use of drones for in-water surveying is expanding, just as it is for the aerial survey market
Caravel, LLC recently conducted a drone bathymetric survey for a marina in the San Francisco Bay Area. The catamaran drone (Figure 1) was deployed to measure water depths throughout the marina for evaluation of navigable conditions in the harbor. A single beam transducer with RTK capable Trimble system was used for data collection. The drone system had the ability to run autonomous survey grid patterns to achieve high precision data quality objectives. In addition, a real-time shore side pilot in command collision control system was employed to prevent the drone from being a hazard to navigation.
All data quality objectives were met at a significantly reduced cost for the marina, showing the real value proposition for using in-water drones. It is also interesting to note the advantages of in-water drone surveying compared to traditional hydrographic surveys in terms of cost savings, time efficiencies, and survey precision.
In addition to single beam hydrographic surveys, in-water drones can be used to collect water velocity data, multibeam, side scan sonar, sub-bottom geophysical, and magnetic data. Lidar instrument systems can also be incorporated into the in-water drone platform allowing for both above water, and below water data to be collected at the same time.
Arctic Whaling Fleet in 3D
This newly created photomontage shows ultra high resolution 3D point cloud data and an orthomosaic image of an old whaling ship. This was one of a fleet of sunken whaling vessels from the 1800's recently found off the Alaskan Arctic coast by NOAA. The orthomosaic image and 3D point cloud map produced was created using specialized structure from motion techniques. These underwater data show the remaining wooden structural members and relics on the seabed adjacent to the surveyed vessel. The image and point cloud data were created by Ken Israel of Caravel, using underwater video data taken by a team of archaeologists from the Maritime Heritage Program in NOAA’s Office of National Marine Sanctuaries in the nearshore waters of the Chukchi Sea, near Wainwright, Alaska
The full story of the NOAA expedition can be found at: http://www.noaanews.noaa.gov/stories2016/010616-remains-of-lost-1800s-whaling-fleet-discovered-off-alaskas-arctic-coast.html