Man measures snowfall for 50 years
Colo. citizen scientist aids in understanding
GOTHIC, Colo. — Four miles from the nearest plowed road high in Colorado’s Rocky Mountains, a 73-year-old man with a billowing gray beard and two replaced hips trudged through his front yard to measure fresh snow that fell during one midMarch day.
Billy Barr first began recording snow and weather data more than 50 years ago as a freshly minted Rutgers University environmental science graduate in Gothic, Colorado, near part of the Colorado River’s headwaters.
Bored and looking to keep busy, he had rigged rudimentary equipment and each day had jotted the inches of fresh snow.
Unpaid but driven by compulsive curiosity and a preference for spending more than half the year on skis rather than on foot, Barr stayed and kept measuring snowfall day after day, winter after winter.
His faithful measurements revealed something he never expected long ago: Snow is arriving later and disappearing earlier as the world warms. That’s a concerning sign for millions of people in the drought-stricken Southwest.
“Snow is a physical form of a water reservoir, and if there’s not enough of it, it’s gone,” Barr said.
So-called “citizen scientists” have long played roles in making observations about plants and counting wildlife to help researchers better understand the environment.
Barr is modest about his own contributions, although the once-handwritten snow data published on his website has informed numerous scientific papers and helped calibrate aerial snow sensing tools. And with each passing year, his data continues to grow.
“Anybody could do it,” he said. “Being socially inept made me so I could do it for 50 years, but anyone can sit there and watch something like that.”
Two winters ago, Barr’s legs started buckling with frustrating frequency as he’d ski mellow loops through spruce trees looking for animal tracks — another data point he collects. He feared it might be his last year in Gothic, a former mining town turned into a research facility owned by the Rocky Mountain Biological Laboratory, where he worked full time for decades and is now a part-time accountant.
Two hip replacement surgeries provided an extended lease on high altitude living. Barr cross-country skied more this past December than he did the entire previous winter.
“Unless something else goes wrong, which it will, but unless it’s severe, I think I can last out here a while longer,” he said.
When he eventually retires from the mountains, Barr hopes to continue most of his long-running weather collection remotely.
He has been testing remote tools for five years, trying to calibrate them to his dated but reliable techniques. He figures it will take a few more years of testing before he’ll trust the new tools.
So far, manual measuring remains the best method, scientists say. Automated snow measurements introduce a degree of uncertainty such as how wind spreads snow unevenly across the landscape, said Ben Pritchett, senior forecaster at the Colorado Avalanche Information Center.
“Nothing replaces observing snow in person to understand how it’s changing,” Pritchett said.