8 Reasons Why Drones Are a Breakthrough for Environmental Experts
The terrain they can cover
Wanting to survey difficult terrain with little to no established vehicle access? Hiring a drone operator to fly across areas such as this, rather than putting people on the ground, can reduce the exposure of those people to potential hazards. For example to evaluate vegetation health along rivers or drainage channels, do inspections of elevated cave entrances or to search for rare flora along ridge lines.
The sensors they can carry
Multispectral sensors are much smaller these days, enabling a drone to carry them and map natural phenomena that could not been possible with just the human eye.
LiDAR capability — which measures the distance from a target using a laser — can see through a forest canopy to determine the fuel density on the ground, as well as accurately plot coastal erosion
A high-resolution camera on a drone is ideal for creating 3D photomosaic images for cultural heritage mapping and coastal erosion monitoring.
Thermal and infra-red cameras, aside from detecting fires, can find wildlife in dense forests, survey solar farms hot spots, or inspect mine site machinery or wind turbines.
They can take off from anywhere
Drones don't need a lot of aeronautical infrastructure, they launch with a catapult and land with a parachute – you don't need a runway. Manned planes need to either fly there expending a lot of fuel, or can't get there at all.
Example application 1: Planned Burns
Drones can be used to evaluate an area prior to a planned burn taking place in terms of topography, hazardous trees, nearby infrastructure, and vegetation types and densities that could lead to the crossing of containment lines. And later for monitoring the planned burns while they're taking place and post-process mapping.
Drones also enable better communications for people on the ground, especially in remote areas, which in turn means increased safety for staff.
Example application 2: Animal Counts
Wild pigs can get into shrubby areas, cause destruction and nest inside the scrub. They are difficult to spot during the day and from ground level. A drone with a visual or thermal camera can detect them and send a live video link to people in vehicles on the ground.
Vertebrate pests impact both the environment and primary producers causing irreparable damage to native land, Flora and Fauna along with significant losses to the agricultural sector. Queensland based business Skies Eye Drone Services is now using thermal imaging equipment to identify animals in the darkness of night, plus the aerial advantage covers more ground cost effectively as opposed to being ground based. And the data and imagery they capture is non-invasive, keeps humans at distance and allows natural monitoring of even the most elusive native animals.
Surveying animals such as koala population sizes at sites - drones are quieter than traditional aircraft, making the animals less likely to be disturbed and therefore easier to count.
Example application 3: Mapping Emissions
One start-up in Finland, Aeromon, is mapping something less tangible than land: industrial emissions. It has built a drone and software platform capable of tracking invisible gases from above.
And it’s not been easy. In order to accurately map gases as they enter the atmosphere, Aeromon team has developed a sophisticated sensor package, ‘BH-8’, which can be attached to a drone to capture data in the field. A connected analytics platform takes the information from these airborne sensors and lets plant operators and regulators map emissions in real-time. This can help governments and authorities keep factories and fossil fuel companies in check.
Example application 4: Catching Poachers in Africa
We all know that illegal poaching is causing the numbers of certain animals to dwindle to the point of near-extinction, including elephants and rhinos. One tech startup, Air Shepherd, is using drones to stop this from happening. The organization uses drones to capture evidence and survey huge areas of land. Not only do they help provide the proof that results in convictions, they also actively repel poachers on the ground. See video https://vimeo.com/183221312
Example application 5: Water Preservation
Equipped with infrared cameras, drones are being trialed in hot and remote locations, to detect leaks in underground water pipes in the desert. Research led by Professor Amin Al-Habaibeh at Nottingham Trent University in the UK aims to prevent water loss using infrared technology to spot leaks that are invisible to the naked eye.