Researchers say drones can detect cyanobacteria blooms faster, and with less hassle, than environmental officials going from lake to lake.
Harmful cyanobacteria blooms have become an increasing threat in New England's lakes and ponds, as climate change warms up the state’s water and air. But researchers at the University of New Hampshire have developed a new, faster way to check for those toxic algae using drones.
Russell Congalton, a professor of natural resources and the environment at UNH and a scientist at the N.H. Agricultural Experiment Station, worked on theChristine Bunyon, the researcher who led a study on how drones can help identify cyanobacteria blooms, gathers a sample from Keyser Pond in Henniker, New Hampshire.
“Covering the entire lake is so powerful compared to maybe going to the corner of the beach and taking a water sample,” he said. “We get the whole lake so we can tell you, okay, it's not so good here, but it's fine over there.” Between May 2022 and September 2022, researchers flew drones over Silver Lake, as well as French, Greenwood, Keyser, Showell and Tucker ponds. They also took water samples in the more traditional way to compare results, and found the drone images produced accurate results.
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