Aerial mapping, wildlife surveys and emergency response using fixed-wing UAVs
Mapping, behavioral sampling and photogrammetry using multirotor UAVs
Experience working with UAVs in marine and extreme environments
Developing platforms for coastal and marine missions
Making UAS data accessible
Advancing Applications, Platforms, & Sensors | Duke Marine Lab
Last Winter, Dr. Dave Johnston, and lead engineer Julian Dale travelled to the Western Antarctica Peninsula Region and used drones to study the behavior and body condition of whales and assessed how populations of penguins and seals are responding to rapid warming.
We just published a new paper on using drones and thermal imagery to automatically detect and count marine wildlife. The paper focuses on using senseFly fixed-wing eBee UAS and their Thermomapper camera to detect adult and young-of-the-year gray seals in eastern Canada. In cooperation with Fisheries and Oceans Canada, we were able to survey two colonies and establish methods which dramatically reduce the time it takes to count seals during their breeding season. The approach is generalizable to other species, and includes details on an ArcGIS workflow to help other people get started. The paper is open access, published March 24, 2017 in Nature’s Scientific Reports
As part of the outreach program at the Duke Marine Lab Unoccupied Systems Facility, Rett Newton and Julian Dale developed and implemented a project-based addition to the East Carteret High School Advanced Placement Environmental Science class. This class of 8 students participated with the UAS facility to detect and identify marine debris on the Rachel Carson Reserve in Beaufort, NC using drones and multi-spectral sensors. The class was introduced to emerging drone technologies, analyzed high resolution aerial images and orthomosaics of marine debris and conducted on-site “ground-truthing” assessments and removal of marine debris from the Reserve. Finally, the student’s presented their analyses to Town and County Commissioners, scientists from the Rachel Carson Reserve and Duke University, and the Assistant Director of the Onslow County Solid Waste Department (who is also the Coordinator of the NC Marine Debris Symposium).
Our research group teamed up with coastal geologists from Antonio Rodriguez’ lab at UNC Institute of Marine Sciences to map out the terrain of Bird Shoals using drones and lasers (ah, sweet, sweet science!). This thin spit of land is part of the barrier island complex that protects downtown Beaufort (and the Duke Marine Lab!) from storms coming through the rapidly widening Beaufort Inlet. The data collected establish an accurate modern baseline for the west end of the island.
The Duke Marine Robotics and Remote Sensing Lab is calculating nearshore marine turtle densities in the Eastern Tropical Pacific by partnering with researchers from the University of North Carolina whose work focuses on gaining a better understanding of the environmental cues that lead to sea turtle mass nesting events (arribadas) in Costa Rica. After using fixed-wing aircraft to conduct aerial transects, the team analyzed hundreds of images and is working with a Californian company to develop software that can be used to automatically identify turtles. Besides developing cheaper, safer, and more effective methods for identifying individuals and calculating densities, this work will support future efforts to conduct broad-scale abundance and distribution assessments in aid of conservation and recovery efforts for these and other protected populations of sea turtles, both in Costa Rica and around the globe.
Duke researchers Julian Dale and Everette Newton joined a team of scientists from NOAA and MIT to study the distribution and density of adult gray seals and their pups on Muskeget Island near Nantucket, Massachusetts. Below are two preliminary uncorrected visualizations from the surveys – a 3D mesh model of the terrain and a high-resolution orthomosaic of the entire island.
The surveys were conducted with a senseFly eBee fixed-wing UAS and the images collected were processed with Pix4D software to generate these synthetic products. These data are being used in ongoing studies of the population biology of Western North Atlantic gray seals.