Drone images give researchers in-depth knowledge of wildfire devastation, forest regeneration

A University of British Columbiaforestry professor and a group of students are using drones to go deeper into B.C.'s wildfire ravaged forests toassesdamage from the disastrous 2017 fire season.

Nicholas Coops, who has workedin remote sensing for 25 years, is collaborating with three master's students and FYBRSolutions Inc., a Vancouver-basedforestry image company formerly named Spire Aerobotics Inc. Together, they willcollect aerialimages near Williams Lake, B.C., an areahit by some of the worst wildfires B.C. has ever experienced.

"This data is like nothing we've ever seen before," Coops said.

The images gathered are helping to createthree-dimensional models of the AlexFraser Research Forest near Williams Lake and the Malcolm Knapp Research Forest near Maple Ridge in the Fraser Valley bothhit by wildfires lastsummer.

Alex Fraser research forest drone footage

7 years ago

Duration 0:36

UBC researchers are using drones to examine the impacts of the 2017 wildfires on forests in B.C.'s Interior.

Coops and his fellow researchers want tochart the progression of the fire, find out whether certain areas burned at a higher temperature than others and determine if any timber issalvageable all in an effort to betterunderstand wildfire behaviour.

Why drones?

Using drones is more efficient than traditional image-gathering technology, such as satellites and airplanes, because they produce clearer images. Photos and videos aren't solely shotabove the forest camera-equipped dronescan flycloser to the ground and amongthe trees.

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"It's in such high resolution ... we can see detail that's just not possible from any other platform," said Patrick Crawford,CEO ofFYBR.

"We can see every live tree, every dead tree. We can see the scorch on the trees. We can see the pattern of mortality that we get across the stand," Coops said.

In addition, Coops said it's much more expensive tosendan airplane upto take pictures. And satellite images are intermittently available, so usingdrones means researcherscan gather informationon a more regular basis.

"We can launch it when we like," Coops said.

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Drones can also cover a lot of ground: between 100 and 200 hectares each day, saidCoops.

Drone footage creates three-dimensional models of wildfire-affected forests

7 years ago

Duration 0:24

Using imagery taken by drones, researchers are creating models of wildfire-affected forests so they can examine wildfire behaviour.

Along with flying drones around and above the trees, students are going into the forest to takemeasurements confirming whether the drone footage is accurate.

"I see a time when a forester will actually release a drone before they start the harvest and fly an area before they start to put the machinery in and that will give them much better maps about areas to harvest and areas to avoid," Coops said. "We'll get a much better sense of managing all the different expectations of the land if we have very good, accurate maps."

With files from Jenifer Norwell